diff --git a/Common/Common.csproj b/Common/Common.csproj
index 213b79628..687c9aa4e 100644
--- a/Common/Common.csproj
+++ b/Common/Common.csproj
@@ -42,6 +42,8 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="BackgroundBeep.cs" />
+    <Compile Include="DatabaseSettings.cs" />
+    <Compile Include="DBSettings.cs" />
     <Compile Include="Enums.cs" />
     <Compile Include="Forms\ListViewEx.cs">
       <SubType>Component</SubType>
@@ -58,9 +60,20 @@
     <Compile Include="Forms\ModelessForm.designer.cs">
       <DependentUpon>ModelessForm.cs</DependentUpon>
     </Compile>
+    <Compile Include="GlobalData.cs" />
+    <Compile Include="IMeasurementCorrection.cs" />
+    <Compile Include="IOrderInfo.cs" />
+    <Compile Include="IParamsProvider.cs" />
+    <Compile Include="IUncertainty.cs" />
+    <Compile Include="IUser.cs" />
+    <Compile Include="Printers\PrintersCommon.cs">
+      <SubType>Component</SubType>
+    </Compile>
+    <Compile Include="QuitAppException.cs" />
     <Compile Include="StatisticalMetrics.cs" />
     <Compile Include="Iperl\OptoTelegramRaw.cs" />
     <Compile Include="SerializableDictionary.cs" />
+    <Compile Include="Telegram.cs" />
     <Compile Include="UIControls\CoolButtonCtrl.cs">
       <SubType>UserControl</SubType>
     </Compile>
@@ -68,6 +81,7 @@
       <DependentUpon>CoolButtonCtrl.cs</DependentUpon>
     </Compile>
     <Compile Include="UIControls\RoundedRectangle.cs" />
+    <Compile Include="Units.cs" />
     <Compile Include="Utils.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
@@ -79,6 +93,7 @@
       <DependentUpon>ModelessForm.cs</DependentUpon>
     </EmbeddedResource>
   </ItemGroup>
+  <ItemGroup />
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
diff --git a/Users/DBSettings.cs b/Common/DBSettings.cs
similarity index 85%
rename from Users/DBSettings.cs
rename to Common/DBSettings.cs
index ce9ff7f30..3a8a7d8c9 100644
--- a/Users/DBSettings.cs
+++ b/Common/DBSettings.cs
@@ -1,10 +1,9 @@
 ///
-/// Copyright (c) 2013-2021 Sensus Slovensko a.s.
+/// Copyright (c) 2021 Sensus Slovensko a.s.
 ///
 using System;
-using Common;
 
-namespace Users
+namespace Common
 {
 	/// <summary>
 	/// Database settings required to make a connection
diff --git a/Common/DatabaseSettings.cs b/Common/DatabaseSettings.cs
new file mode 100644
index 000000000..ac40b30f2
--- /dev/null
+++ b/Common/DatabaseSettings.cs
@@ -0,0 +1,121 @@
+///
+/// Copyright (c) 2013-2020 Sensus Slovensko a.s.
+///
+using System;
+using System.Text;
+using System.Xml.Serialization;
+
+namespace Common
+{
+    /// <summary>
+    /// Test bench database settings, contains bench name and settings od several databases
+    /// </summary>
+    public class DatabaseSettings : ICloneable, IComparable
+    {
+        // Public fields
+        public string BenchName;
+        public bool IsRealBench;
+        public DBSettings ProceduresDBSettings;	/// Configuration database settings
+        public DBSettings WaterMetersDBSettings;	/// Results database settings
+        public DBSettings EventsDBSettings;	    /// Events database settings
+        public DBSettings UsersDBSettings;		/// Shared configuration database settings
+
+        // Constructor
+        public DatabaseSettings()
+        {
+            BenchName = String.Empty;               /// Empty string (avoid null)
+            IsRealBench = false;
+			ProceduresDBSettings  = new DBSettings(DBType.MySql, string.Empty);
+			WaterMetersDBSettings = new DBSettings(DBType.MySql, string.Empty);
+            EventsDBSettings      = new DBSettings(DBType.MySql, string.Empty);
+			UsersDBSettings       = new DBSettings(DBType.MySql, string.Empty);
+        }
+
+        public object Clone()
+        {
+            DatabaseSettings result = new DatabaseSettings();
+
+            result.BenchName    = BenchName;
+            result.IsRealBench  = IsRealBench;
+            result.ProceduresDBSettings = (DBSettings)ProceduresDBSettings.Clone();
+            result.WaterMetersDBSettings = (DBSettings)WaterMetersDBSettings.Clone();
+            result.EventsDBSettings = (DBSettings)EventsDBSettings.Clone();
+            result.UsersDBSettings = (DBSettings)UsersDBSettings.Clone();
+
+            return result;
+        }
+
+        public int CompareTo(object dbs2)
+        {
+            if (!(dbs2 is DatabaseSettings)) return 0;
+            return String.Compare(BenchName, (dbs2 as DatabaseSettings).BenchName);
+        }
+
+
+        /// <summary>
+        /// Extract and return a DB server from a MySQL connection string.
+        /// </summary>
+        public static string GetDBServer(string connectionString)
+        {
+            return GetFromConnectionString(connectionString, new string[] { "SERVER=" });
+        }
+
+        /// <summary>
+        /// Extract and return a DB name from a MySQL connection string.
+        /// </summary>
+        public static string GetDBName(string connectionString)
+        {
+            return GetFromConnectionString(connectionString, new string[] { "DATABASE=" });
+        }
+
+        /// <summary>
+        /// Extract and return a username from a MySQL connection string
+        /// </summary>
+        public static string GetDBUser(string connectionString)
+        {
+            return GetFromConnectionString(connectionString, new string[] { "USER=", "UID=" });
+        }
+
+        /// <summary>
+        /// Extract and return a password from a MySQL connection string
+        /// </summary>
+        public static string GetDBPassword(string connectionString)
+        {
+            return GetFromConnectionString(connectionString, new string[] { "PASSWORD=", "PWD=" });
+        }
+
+        /// <summary>
+        /// Extract and return an element of a MySQL connection string
+        /// (a host, a database, a user name or a password).
+        /// Return an empty string on any error.
+        /// </summary>
+        public static string GetFromConnectionString(string connectionString, string[] patterns)
+        {
+            foreach (var pattern in patterns)
+            {
+                int startIx = connectionString.IndexOf(pattern);
+                if (startIx >= 0)
+                {
+                    /// pattern found, extract the subsequent element
+                    startIx += pattern.Length;
+                    int endIx = connectionString.IndexOf(';', startIx);
+                    return (endIx > 0) ? connectionString.Substring(startIx, endIx - startIx) : string.Empty;
+                }
+            }
+
+            /// pattern NOT found
+            return string.Empty;
+        }
+
+
+		public override string ToString()
+		{
+            return string.Format("{0} config={1} results={2} events={3} users={4}",
+                                 BenchName,
+                                 ProceduresDBSettings.ConnectionString,
+                                 WaterMetersDBSettings.ConnectionString,
+                                 EventsDBSettings.ConnectionString,
+                                 UsersDBSettings.ConnectionString);
+		}
+    }
+}
diff --git a/Common/Enums.cs b/Common/Enums.cs
index 57b93e606..001f1d1e7 100644
--- a/Common/Enums.cs
+++ b/Common/Enums.cs
@@ -70,8 +70,8 @@ namespace Common
         [Description("None")]                           None,
         [Description("Local procedures")]               FromLocalDB,
         [Description("Shared procedures")]              FromSharedDB,
-        [Description("Orders from Oracle DB")]          OrderNrFromOracleDB,
-        [Description("Orders from Tracing DB")]         OrderNrFromTracingDB,
+        [Description("Orders from Oracle DB")]          OrderFromOracleDB,
+        [Description("Orders from Tracing DB")]         OrderFromTracingDB,
 #endif
         Count
     }
diff --git a/Common/Formulas.cs b/Common/Formulas.cs
new file mode 100644
index 000000000..3a25c929e
--- /dev/null
+++ b/Common/Formulas.cs
@@ -0,0 +1,352 @@
+///
+/// Copyright (c) 2013-2021 Sensus Slovensko a.s.
+///
+using System;
+using System.Collections.Generic;
+using log4net;
+
+namespace Common
+{
+    public static class Formulas
+    {
+		private static readonly ILog log = LogManager.GetLogger(typeof(Formulas));
+
+
+        ///
+        /// Wrappers
+        ///
+        public static double RealDensity() { return GlobalData.SampleDensity; }
+        public static double AtTemperature() { return GlobalData.SampleTemp; }
+        public static double Buoyancy() { return GlobalData.Buoyancy; }
+
+
+        /// Private tables with coeficients to calculate specific enthalpy
+        static readonly int[] Ii;
+        static readonly int[] Ji;
+        static readonly double[] ni;
+
+        /// Private table with coeficients to calculate temperature of a platinum thermometer
+        static readonly double[] Di;
+
+
+        /// <summary> 
+		/// Constructor
+		/// </summary>
+        static Formulas()
+        {
+            ///
+            /// Initialize tables to calculate specific enthalpies
+            ///
+            Ii = new int[34] { 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 8, 8, 21, 23, 29, 30, 31, 32 };
+            Ji = new int[34] { -2, -1, 0, 1, 2, 3, 4, 5, -9, -7, -1, 0, 1, 3, -3, 0, 1, 3, 17, -4, 0, 6, -5, -2, 10, -8, -11, -6, -29, -31, -38, -39, -40, -41 };
+            ni = new double[34] {
+                 0.14632971213167,      /// 1
+                -0.84548187169114,      /// 2
+                -0.37563603672040E1,    /// 3
+                 0.33855169168385E1,    /// 4
+                -0.95791963387872,      /// 5
+                 0.15772038513228,      /// 6
+                -0.16616417199501E-1,   /// 7
+                 0.81214629983568E-3,   /// 8
+                 0.28319080123804E-3,   /// 9
+                -0.60706301565874E-3,   /// 10
+                -0.18990068218419E-1,   /// 11
+                -0.32529748770505E-1,   /// 12
+                -0.21841717175414E-1,   /// 13
+                -0.52838357969930E-4,   /// 14
+                -0.47184321073267E-3,   /// 15
+                -0.30001780793026E-3,   /// 16
+                 0.47661393906987E-4,   /// 17
+                -0.44141845330846E-5,   /// 18
+                -0.72694996297594E-15,  /// 19
+                -0.31679644845054E-4,   /// 20
+                -0.28270797985312E-5,   /// 21
+                -0.85205128120103E-9,   /// 22
+                -0.22425281908000E-5,   /// 23
+                -0.65171222895601E-6,   /// 24
+                -0.14341729937924E-12,  /// 25
+                -0.40516996860117E-6,   /// 26
+                -0.12734301741641E-8,   /// 27
+                -0.17424871230634E-9,   /// 28
+                -0.68762131295531E-18,  /// 29
+                 0.14478307828521E-19,  /// 30
+                 0.26335781662795E-22,  /// 31
+                -0.11947622640071E-22,  /// 32
+                 0.18228094581404E-23,  /// 33
+                -0.93537087292458E-25,  /// 34
+            };
+
+			///
+			/// Initialize a table to calculate temperature of a platinum thermometer from resistance
+			///
+			Di = new double[]
+			{
+				 439.932854,
+				 472.418020,
+				 37.684494,
+				 7.472018,
+				 2.920828,
+				 0.005184,
+				-0.963864,
+				-0.188732,
+				 0.191203,
+				 0.049025,
+			};
+        }
+
+        /// <summary>
+        /// Calculate density of distilled water from temperature
+        /// </summary>
+        /// <param name="t">ITS-90 temperature in [°C]</param>
+        /// <returns>Density in [kg/m3]</returns>
+        public static double DistilledWaterDensityFromTemp(double t)
+        {
+            if (t <= 40)
+            {
+                const double c0 = 999.839564;
+                const double c1 = 0.067998613;
+                const double c2 = -0.0091101468;
+                const double c3 = 0.00010058299;
+                const double c4 = -0.0000011275659;
+                const double c5 = 6.5985371e-09;
+
+                return ((((c5 * t + c4) * t + c3) * t + c2) * t + c1) * t + c0;
+            }
+            else
+            {
+                const double a0 = 9.9983952E2;
+                const double a1 = 1.6952577E1;
+                const double a2 = -7.9905127E-3;
+                const double a3 = -4.6241757E-5;
+                const double a4 = 1.0584601E-7;
+                const double a5 = -2.8103006E-10;
+                const double b = 1.6887236E-2;
+
+                return (((((a5 * t + a4) * t + a3) * t + a2) * t + a1) * t + a0) / (1.0 + b * t);
+            }
+        }
+
+		/// <summary>
+		/// Calculate density of distilled water from temperature (obsolete)
+		/// </summary>
+		/// <param name="t">IPTS-68 temperature in [°C]</param>
+		/// <returns>Density in [kg/m3]</returns>
+        public static double DistilledWaterDensityFromTempIPTS68(double t)
+        {
+            const double a0 = 999.842594;
+            const double a1 = 0.06793952;
+            const double a2 = -0.009095290;
+            const double a3 = 0.0001001685;
+            const double a4 = -0.000001120083;
+            const double a5 = 6.536332e-09;
+
+            return ((((a5 * t + a4) * t + a3) * t + a2) * t + a1) * t + a0;
+        }
+
+		/// <summary>
+		/// Calculate density by comparing calculated data and data from a certificate
+		/// </summary>
+		/// <param name="realDensity">Density from a certificate in [kg/m3]</param>
+		/// <param name="atTemperature">Temperature from a certificate in [°C]</param>
+		/// <returns>Density correction in [kg/m3]</returns>
+		public static double DensityCorrection(double realDensity, double atTemperature)
+		{
+			/// Calculated data
+			double calculatedDensity = DistilledWaterDensityFromTemp(atTemperature);
+
+			return realDensity - calculatedDensity;
+		}
+
+		/// <summary>
+		/// Calculate corrected (real) water density from temperature
+		/// </summary>
+		/// <param name="t">Temperature in [°C]</param>
+		/// <returns>Density in [kg/m3]</returns>
+		public static double WaterDensityFromTemp(double t)
+		{
+            return DistilledWaterDensityFromTemp(t) + DensityCorrection(RealDensity(), AtTemperature());
+		}
+
+        /// <summary>
+        /// Calculate corrected (real) water density from temperature
+        /// </summary>
+        /// <param name="t">Temperature in [°C]</param>
+        /// <returns>Density in [kg/m3]</returns>
+        public static double WaterDensityFromTempPress(double temp, double pressure)
+        {
+            double x0 = 5.08821E-10;
+            double x1 = 1.2639418;
+            double x2 = 0.2660269;
+            double x3 = 0.3734838;
+            double x4 = 2.0205242;
+            double theta = temp / 100.0;
+            double B = x0 * (((x3 * theta + x2) * theta + x1) * theta + 1) / (1 + x4 * theta);
+
+            return WaterDensityFromTemp(temp) * (1 + B * Common.Units.ConvertTo(Common.Unit.Pa, pressure));
+        }
+
+
+		public static float AirDensityFromAmbientVales(float tempC, float pressureBar, float humiPct)
+		{
+			double pressurePa = 100000.0 * (double)pressureBar;		/// [Pa]
+			double tempKelvin = 273.15 + (double)tempC;
+			double coef1 = 1.2811805 / 10000.0 * tempKelvin * tempKelvin
+						 - 1.950987 / 100.0 * tempKelvin
+						 + 34.04926034
+						 - 6.353631 * 1000.0 / tempKelvin;
+			double coef3 = humiPct / 100.0 * System.Math.Exp(coef1) / pressurePa;
+			double airDensityKgm3 = 0.00348353 * pressurePa * (1.0 - 0.378 * coef3) / tempKelvin;	/// kg/m3
+			return (float)airDensityKgm3;
+		}
+
+		/// <summary>
+		/// Convert 'pulses' to 'volume', prevent division by zero
+		/// </summary>
+		public static double VolumeFromPulses(int pulses, double pulsesPerLiter)
+		{
+			if (pulsesPerLiter <= double.Epsilon) return 0;
+			return Convert.ToDouble(pulses) / pulsesPerLiter;
+		}
+
+		/// <summary>
+		/// Calculate the error in % from 'measured' and 'true' volume, prevent division by zero
+		/// </summary>
+		public static double ErrorFromVolumes(double measuredVolume, double trueVolume)
+		{
+			if (trueVolume <= float.Epsilon)
+			{
+				if (measuredVolume <= float.Epsilon)
+				{
+					log.WarnFormat("ErrorFromVolumes({0},{1}) returns {2}", measuredVolume, trueVolume, -100.0);
+					return -100.0;
+				}
+
+				log.WarnFormat("ErrorFromVolumes({0},{1}) returns {2}", measuredVolume, trueVolume, 99.0);
+				return 99.0;
+			}
+
+			double error = 100.0 * (measuredVolume - trueVolume) / trueVolume;
+			log.InfoFormat("ErrorFromVolumes({0},{1}) returns {2}", measuredVolume, trueVolume, error);
+			return error;
+		}
+
+
+        /// <summary>
+        /// Converts a measurement error to a correction (used when preparing correction tables).
+        /// </summary>
+        /// <param name="measuredValue">Measured value (in arbitrary units)</param>
+        /// <param name="error">Measurement error in %</param>
+        /// <returns>Correction in the same units as the measured value</returns>
+        public static double CorrectionFromError(double measuredValue, double error)
+        {
+            double trueValue = measuredValue / (1 + error/100);
+            double correction = trueValue - measuredValue;
+            return correction;
+        }
+
+
+        /// <summary>
+        /// Calculates the heat coefficient for water
+        /// </summary>
+        /// <param name="pressure">Pressure [bar]</param>
+		/// <param name="T_in">Inlet temperature [°C]</param>
+		/// <param name="T_out">Outlet temperature [°C]</param>
+        /// <param name="flowMeasuredAtInlet">true = flow measured @inlet, false = flow measured @outlet</param>
+        /// <returns> Heat coefficient for water [J/(m3 K)]</returns>
+        public static double HeatCoefficientWater(double pressure, double T_in, double T_out, bool flowMeasuredAtInlet)
+        {
+            if (T_in == T_out) return 0;
+
+            const double R = 461.526;                       /// [J kg^-1 K^-1]
+            const double p_star_Pa = 16.53E6;               /// [Pa] (=16.53 MPa)
+            const double T_star = 1386.0;                   /// [K]
+
+            double T_in_K = Common.Units.ConvertTo(Common.Unit.K, T_in);
+            double T_out_K = Common.Units.ConvertTo(Common.Unit.K, T_out);
+            double tau_in = T_star / T_in_K;
+            double tau_out = T_star / T_out_K;
+            double pi = Common.Units.ConvertTo(Common.Unit.Pa, pressure) / p_star_Pa;
+
+            double h_in = tau_in * GammaTau(pi, tau_in) * R * T_in_K;
+            double h_out = tau_out * GammaTau(pi, tau_out) * R * T_out_K;
+
+            double ni = flowMeasuredAtInlet ? GammaPi(pi, tau_in) * R * T_in_K / p_star_Pa
+                                            : GammaPi(pi, tau_out) * R * T_out_K / p_star_Pa;
+
+            return (h_in - h_out) / (ni * (T_in - T_out));
+        }
+
+        /// <summary>
+        /// gamma(pi) see also STN EN 1434-1 Annex A (A.4)
+        /// </summary>
+        /// <param name="pi">pi = p / p* where p* = 16.53 MPa</param>
+        /// <param name="tau">tau = T* / T where T* = 1386 K</param>
+        /// <returns>gamma(pi)</returns>
+        static double GammaPi(double pi, double tau)
+        {
+            double result = 0;
+            for (int i = 0; i < 34; i++)
+            {
+                result -= ni[i] * Ii[i] * Math.Pow(7.1 - pi, Ii[i] - 1) * Math.Pow(tau - 1.222, Ji[i]);
+            }
+            return result;
+        }
+
+        /// <summary>
+        /// gamma(tau) see also STN EN 1434-1 Annex A (A.7)
+        /// </summary>
+        /// <param name="pi">pi = p / p* where p* = 16.53 MPa</param>
+        /// <param name="tau">tau = T* / T where T* = 1386 K</param>
+        /// <returns>gamma(tau)</returns>
+        static double GammaTau(double pi, double tau)
+        {
+            double result = 0;
+            for (int i = 0; i < 34; i++)
+            {
+                result += ni[i] * Math.Pow(7.1 - pi, Ii[i]) * Ji[i] * Math.Pow(tau - 1.222, Ji[i] - 1);
+            }
+            return result;
+        }
+
+		/// <summary>
+		/// Conversion of measured resistance of a platinum thermometer to temperature according to ITS-90
+		/// </summary>
+		/// <param name="R">Measured resistance in [°C]</param>
+		/// <param name="R001C">Calibrated resistance in Ohm at 0.01°C</param>
+		/// <param name="a7">Calibrated ITS-90 coefficient a7</param>
+		/// <param name="b7">Calibrated ITS-90 coefficient b7</param>
+		/// <param name="c7">Calibrated ITS-90 coefficient c7</param>
+        /// <returns>Temperature in [°C]</returns>
+		public static double PlatinumResistanceTM_ITS90_R2T(double R, double R001C, double a7, double b7, double c7)
+		{
+			double w = R / R001C;			/// ratio
+			double r1 = w - 1.0;
+			double dw = r1 * (a7 + r1 * (b7 + r1 * c7));	/// = a7*r1 + b7*r1^2 + c7*r1^3
+			double wr = w - dw;
+			double x = (wr - 2.64) / 1.64;
+
+			double sum = 0;
+			for (int i = Di.Length - 1; i >= 0; i--)
+			{
+				sum = sum * x + Di[i];
+			}
+
+			return sum;
+		}
+
+        /// <summary>
+        /// Conversion of measured resistance of a platinum thermometer to temperature using Callendar-Van Dusen equations
+        /// </summary>
+        /// <param name="R">Measured resistance in [°C]</param>
+        /// <param name="R0">Calibrated resistance in Ohm at 0°C</param>
+        /// <param name="A">Calibration coefficient a</param>
+        /// <param name="B">Calibration coefficient b</param>
+        /// <returns>Temperature in [°C]</returns>
+        public static double PlatinumResistanceTM_ITS27_R2T(double R, double R0, double A, double B)
+        {
+            if (R0 * R0 * A * A - 4 * R0 * B * (R0 - R) <= 0) return 0;     /// Out of range
+
+            return (-(R0 * A) + Math.Sqrt(R0 * R0 * A * A - 4 * R0 * B * (R0 - R))) / (2 * R0 * B);
+        }
+	}
+}
diff --git a/Common/GlobalData.cs b/Common/GlobalData.cs
new file mode 100644
index 000000000..44b7e9260
--- /dev/null
+++ b/Common/GlobalData.cs
@@ -0,0 +1,42 @@
+///
+/// Copyright (c) 2021 Sensus Slovensko a.s.
+///
+using System;
+
+namespace Common
+{
+    public class GlobalData
+    {
+        public static double SampleDensity = 0; /// sample water density measured in an accredited labo [kg/m3]
+        public static double SampleTemp = 0;    /// sample temperature when density measured in an accredited labo [°C]
+        public static double Buoyancy = 0;
+
+        public const string AdminUsername = "admin";
+        public const string AdminPassword = "staratura";
+
+        public static DBSettings RemoteUsersDB = null;
+		public static DBSettings LocalUsersDB = null;
+
+        public static IUser CurrentUser;
+        public static IUser CurrentUser2;
+        public static IUser CurrentUser3;
+        
+        public static Common.AuthorizedAs AuthorizedAs;
+		public static DateTime LastAuthorization = DateTime.Now;
+
+        public static int MinPasswdLength = 0;
+        public static int PasswdExpirationPeriodDays = 0; 
+
+        public static string GetCurrentUserName()
+        {
+            if (CurrentUser == null || CurrentUser.UserName == null)
+                return string.Empty;
+            else if (CurrentUser2 == null || CurrentUser2.UserName == null)
+                return CurrentUser.UserName;
+            else if (CurrentUser3 == null || CurrentUser3.UserName == null)
+                return string.Format("{0},{1}", CurrentUser.UserName, CurrentUser2.UserName);
+            else
+                return string.Format("{0},{1},{2}", CurrentUser.UserName, CurrentUser2.UserName, CurrentUser3.UserName);
+        }
+    }
+}
diff --git a/Common/IMeasurementCorrection.cs b/Common/IMeasurementCorrection.cs
new file mode 100644
index 000000000..41c92da54
--- /dev/null
+++ b/Common/IMeasurementCorrection.cs
@@ -0,0 +1,11 @@
+using System;
+
+namespace Common
+{
+    public interface IMeasurementCorrection
+    {
+        int RangeIx { get; set; }
+        float Measurement { get; set; }
+        float Correction { get; set; }
+    }
+}
diff --git a/Common/IOrderInfo.cs b/Common/IOrderInfo.cs
new file mode 100644
index 000000000..cc08542e8
--- /dev/null
+++ b/Common/IOrderInfo.cs
@@ -0,0 +1,26 @@
+///
+/// Copyright (c) 2021 Sensus Slovensko a.s.
+///
+using System;
+
+namespace Common
+{
+    public interface IOrderInfo
+    {
+        string POName { get; }
+        string VariantCode { get; }
+        string ModuleParam { get; }
+        int    PiecesCount { get; }
+        string SNPrefix { get; }
+        int    SNFirst { get; }
+        int    SNDigitsCount { get; }
+        string SNSuffix { get; }
+        string RAPrefix { get; }
+        int    RAFirst { get; }
+        string RASuffix { get; }
+        string Remark { get; }
+        int    CurrentPcsCount { get; set; }
+        int    CurrentSN { get; set; }
+        int    CurrentRA { get; set; }
+    }
+}
diff --git a/Config/Entities/IParamsProvider.cs b/Common/IParamsProvider.cs
similarity index 96%
rename from Config/Entities/IParamsProvider.cs
rename to Common/IParamsProvider.cs
index 2a92d5421..277a3eac2 100644
--- a/Config/Entities/IParamsProvider.cs
+++ b/Common/IParamsProvider.cs
@@ -1,12 +1,11 @@
 ///
-/// Copyright (c) 2013-2018 Sensus Slovensko a.s.
+/// Copyright (c) 2013-2021 Sensus Slovensko a.s.
 ///
 using System;
 using System.Collections.Generic;
 using System.Xml.Serialization;
-using Common;
 
-namespace Config.Entities
+namespace Common
 {
 	public interface IParamsProvider
 	{
diff --git a/Common/IUncertainty.cs b/Common/IUncertainty.cs
new file mode 100644
index 000000000..2842eee4e
--- /dev/null
+++ b/Common/IUncertainty.cs
@@ -0,0 +1,14 @@
+using System;
+
+namespace Common
+{
+    public interface IUncertainty
+    {
+        float Measurement { get; }
+        float MainUncertainty { get; }
+        float Resolution { get; }
+        float DriftPerYr { get; }
+        float Conditions { get; }
+        float UncertaintyOfCorrection { get; }
+    }
+}
diff --git a/Common/IUser.cs b/Common/IUser.cs
new file mode 100644
index 000000000..e127c2f6b
--- /dev/null
+++ b/Common/IUser.cs
@@ -0,0 +1,22 @@
+using System;
+
+namespace Common
+{
+    public interface IUser
+    {
+        string UserName { get; }	    /// = name, alias, abbreviation
+        string FullName { get; }	    /// = description
+        string Tag { get; }
+        int Number { get; }
+
+        /// Access rights
+        bool IsMemberOf(GID group);
+        bool IsMemberOf(GID[] groups);
+        bool IsCorrectPassword(string password);
+
+        /// Password complexity, history, etc.
+        bool IsPasswordExpired();
+        bool IsPasswordUsedInPast(string passwordCandidate);
+        void SetPassword(string password);
+    }
+}
diff --git a/Results/Output/Printers/PrintersCommon.cs b/Common/Printers/PrintersCommon.cs
similarity index 98%
rename from Results/Output/Printers/PrintersCommon.cs
rename to Common/Printers/PrintersCommon.cs
index f26e073ec..b57fe9aaa 100644
--- a/Results/Output/Printers/PrintersCommon.cs
+++ b/Common/Printers/PrintersCommon.cs
@@ -2,9 +2,8 @@
 using System.Collections.Generic;
 using System.Drawing;
 using System.Drawing.Printing;
-using Common;
 
-namespace Results.Output.Printers
+namespace Common.Printers
 {
     public class PrintersCommon : PrintDocument
     {
diff --git a/TracingDB/QuitAppException.cs b/Common/QuitAppException.cs
similarity index 89%
rename from TracingDB/QuitAppException.cs
rename to Common/QuitAppException.cs
index aa73c0ac9..ae06a4cb8 100644
--- a/TracingDB/QuitAppException.cs
+++ b/Common/QuitAppException.cs
@@ -1,6 +1,6 @@
 using System;
 
-namespace TracingDB
+namespace Common
 {
     public class QuitAppException : Exception
     {
diff --git a/TBF/Rig/Telegram.cs b/Common/Telegram.cs
similarity index 72%
rename from TBF/Rig/Telegram.cs
rename to Common/Telegram.cs
index cd7f7a4f2..357a30800 100644
--- a/TBF/Rig/Telegram.cs
+++ b/Common/Telegram.cs
@@ -1,12 +1,12 @@
 ///
-/// Copyright (c) 2013-2019 Sensus Metering Systems
+/// Copyright (c) 2013-2021 Sensus Metering Systems
 ///
 using System;
 using System.Collections.Generic;
 
-namespace TBF.Rig
+namespace Common
 {
-	public class Telegram
+	public static class Telegram
 	{
 		const UInt16 crcSeed = 0xFFFF;		// Initial crc value
 		const UInt16 crcGP = 0xA001;		// Generating polynomial
@@ -39,13 +39,29 @@ namespace TBF.Rig
 		/// </summary>
 		/// <param name="data">Data telegram</param>
 		/// <returns>Calculated CRC</returns>
-		public static UInt16 ClaculateTelegramCRC(byte[] data)
+		public static UInt16 CalculateTelegramCRC(byte[] data, int enforcedLen = 0)
 		{
+            int len = (enforcedLen != 0) ? Math.Min(enforcedLen, data.Length) : data.Length;
 			UInt16 crc = crcSeed;
-			for (int i = 0; i < data.Length - 2; i++) UpdateCRC(data[i], ref crc);
+            for (int i = 0; i < len - 2; i++) UpdateCRC(data[i], ref crc);
 			return crc;
 		}
 
+        /// <summary>
+        /// Calculates the CRC from a data telegram (an array of bytes).
+        /// A complete telegram including two bytes reserved for the CRC
+        /// must be supplied as an argument.
+        /// </summary>
+        /// <param name="data">Data telegram</param>
+        /// <returns>Calculated CRC</returns>
+        public static UInt16 CalculateTelegramCRC(int offset, byte[] data, int enforcedLen = 0)
+        {
+            int len = (enforcedLen != 0) ? Math.Min(enforcedLen, data.Length - offset) : data.Length - offset;
+            UInt16 crc = crcSeed;
+            for (int i = 0; i < len - 2; i++) UpdateCRC(data[offset + i], ref crc);
+            return crc;
+        }
+
 		/// <summary>
 		/// This function modifies the last 2 bytes in the message buffer
 		/// by the CRC calculated from the remaining first (Lenght - 2) bytes.
@@ -58,7 +74,7 @@ namespace TBF.Rig
 			int len = data.Length;
 			if (len < 2) return;
 
-			UInt16 crc = ClaculateTelegramCRC(data);
+			UInt16 crc = CalculateTelegramCRC(data);
 
 			data[len - 2] = (byte)(crc & 0xFF);
 			data[len - 1] = (byte)(crc >> 8);
@@ -72,16 +88,38 @@ namespace TBF.Rig
 		/// </summary>
 		/// <param name="data">Data telegram</param>
 		/// <returns>true if the CRC in the telegram is correct</returns>
-		public static bool VerifyTelegramCRC(byte[] data)
+		public static bool VerifyTelegramCRC(byte[] data, int enforcedLen = 0)
 		{
-			int len = data.Length;
+            if (data == null || data.Length == 0 || enforcedLen > data.Length) return false;
+
+			int len = (enforcedLen != 0) ? enforcedLen : data.Length;
 			if (len < 2) return false;
 
-			UInt16 crc = ClaculateTelegramCRC(data);
+			UInt16 crc = CalculateTelegramCRC(data, len);
 
 			return (data[len - 2] == (byte)(crc & 0xFF)) && (data[len - 1] == (byte)(crc >> 8));
 		}
 
+        /// <summary>
+        /// This function compares the last 2 bytes in the message buffer
+        /// with the CRC calculated from the remaining first (Lenght - 2) bytes.
+        /// A complete telegram including two bytes reserved for the CRC
+        /// must be supplied as an argument.
+        /// </summary>
+        /// <param name="data">Data telegram</param>
+        /// <returns>true if the CRC in the telegram is correct</returns>
+        public static bool VerifyTelegramCRC(int offset, byte[] data, int enforcedLen = 0)
+        {
+            if (data == null || data.Length == 0 || enforcedLen > data.Length - offset) return false;
+
+            int len = (enforcedLen != 0) ? enforcedLen : data.Length - offset;
+            if (len < 2) return false;
+
+            UInt16 crc = CalculateTelegramCRC(offset, data, len);
+
+            return (data[offset + len - 2] == (byte)(crc & 0xFF)) && (data[offset + len - 1] == (byte)(crc >> 8));
+        }
+
 
 
 		/// <summary>
@@ -91,7 +129,7 @@ namespace TBF.Rig
 		/// </summary>
 		/// <param name="data">Data telegram</param>
 		/// <returns>Calculated checksum</returns>
-		public static byte ClaculateTelegramChecksum(byte[] data)
+		public static byte CalculateTelegramChecksum(byte[] data)
 		{
 			byte checksum = 0;
 			for (int i = 0; i < data.Length - 1; i++) checksum = (byte)(checksum ^ data[i]);
@@ -106,7 +144,7 @@ namespace TBF.Rig
 		/// <param name="hartPreambLen">Length of HART telegram preamble (FF bytes)</param>
 		/// <param name="data">Data telegram</param>
 		/// <returns>Calculated checksum</returns>
-		public static byte ClaculateTelegramChecksum(int hartPreambLen, byte[] data)
+		public static byte CalculateTelegramChecksum(int hartPreambLen, byte[] data)
 		{
 			byte checksum = 0;
 			for (int i = hartPreambLen; i < data.Length - 1; i++) checksum = (byte)(checksum ^ data[i]);
@@ -124,7 +162,7 @@ namespace TBF.Rig
 		{
 			int len = data.Length;
 			if (len < 1) return;
-			data[len - 1] = ClaculateTelegramChecksum(data);
+			data[len - 1] = CalculateTelegramChecksum(data);
 		}
 
 		/// <summary>
@@ -139,7 +177,7 @@ namespace TBF.Rig
 		public static void UpdateTelegramChecksum(int hartPreambLen, byte[] data)
 		{
 			if (data.Length - hartPreambLen < 1) return;
-			data[data.Length - 1] = ClaculateTelegramChecksum(hartPreambLen, data);
+			data[data.Length - 1] = CalculateTelegramChecksum(hartPreambLen, data);
 		}
 
 		/// <summary>
@@ -154,7 +192,7 @@ namespace TBF.Rig
 		{
 			int len = data.Length;
 			if (len < 1) return false;
-			return (data[len - 1] == ClaculateTelegramChecksum(data));
+			return (data[len - 1] == CalculateTelegramChecksum(data));
 		}
 
 		/// <summary>
@@ -169,11 +207,10 @@ namespace TBF.Rig
 		public static bool VerifyTelegramChecksum(int hartPreambLen, byte[] data)
 		{
 			if (data.Length - hartPreambLen < 1) return false;
-			return (data[data.Length - 1] == ClaculateTelegramChecksum(hartPreambLen, data));
+			return (data[data.Length - 1] == CalculateTelegramChecksum(hartPreambLen, data));
 		}
 
 
-
 		public static string LogTelegram(string intro, byte[] data, int from = 0, int len = -1)
 		{
 			System.Text.StringBuilder sb = new System.Text.StringBuilder(256);
@@ -194,6 +231,7 @@ namespace TBF.Rig
 			return sb.ToString();
 		}
 
+
         public static string LogTelegram(string intro, IList<byte> data, int from = 0, int len = -1)
         {
             System.Text.StringBuilder sb = new System.Text.StringBuilder(256);
@@ -215,7 +253,6 @@ namespace TBF.Rig
         }
 
 
-
 		public static string LogTelegram(string intro, string data)
 		{
 			System.Text.StringBuilder sb = new System.Text.StringBuilder(80);
diff --git a/Config/Units.cs b/Common/Units.cs
similarity index 97%
rename from Config/Units.cs
rename to Common/Units.cs
index 2119c26b1..d39581320 100644
--- a/Config/Units.cs
+++ b/Common/Units.cs
@@ -2,11 +2,8 @@
 /// Copyright (c) 2016-2021 Sensus Slovensko a.s.
 ///
 using System;
-using System.Reflection;
-using Common;
-using Config.Entities;
 
-namespace Config
+namespace Common
 {
     public enum Unit
     {
@@ -360,21 +357,21 @@ namespace Config
             }
 		}
 
-		public static bool IsVolume(Unit unit)       { return IsQuantity(unit, Config.Quantity.Volume); }
-		public static bool IsFlow(Unit unit)         { return IsQuantity(unit, Config.Quantity.Flow); }
-        public static bool IsMass(Unit unit)         { return IsQuantity(unit, Config.Quantity.Mass); }
-        public static bool IsTime(Unit unit)         { return IsQuantity(unit, Config.Quantity.Time); }
-        public static bool IsTemperature(Unit unit)  { return IsQuantity(unit, Config.Quantity.Temperature); }
-		public static bool IsPressure(Unit unit)     { return IsQuantity(unit, Config.Quantity.Pressure); }
-        public static bool IsHumidity(Unit unit)     { return IsQuantity(unit, Config.Quantity.Humidity); }
-        public static bool IsError(Unit unit)        { return IsQuantity(unit, Config.Quantity.Error); }
-		public static bool IsLength(Unit unit)       { return IsQuantity(unit, Config.Quantity.Length); }
-		public static bool IsDensity(Unit unit)      { return IsQuantity(unit, Config.Quantity.Density); }
-		public static bool IsEnergy(Unit unit)       { return IsQuantity(unit, Config.Quantity.Energy); }
-        public static bool IsPulses(Unit unit)       { return IsQuantity(unit, Config.Quantity.Pulses); }
-        public static bool IsPulsePerLtr(Unit unit)  { return IsQuantity(unit, Config.Quantity.PulsePerLtr); }
-        public static bool IsPulsePerKWh(Unit unit)  { return IsQuantity(unit, Config.Quantity.PulsePerKWh); }
-        public static bool IsConductivity(Unit unit) { return IsQuantity(unit, Config.Quantity.Conductivity); }
+		public static bool IsVolume(Unit unit)       { return IsQuantity(unit, Quantity.Volume); }
+		public static bool IsFlow(Unit unit)         { return IsQuantity(unit, Quantity.Flow); }
+        public static bool IsMass(Unit unit)         { return IsQuantity(unit, Quantity.Mass); }
+        public static bool IsTime(Unit unit)         { return IsQuantity(unit, Quantity.Time); }
+        public static bool IsTemperature(Unit unit)  { return IsQuantity(unit, Quantity.Temperature); }
+		public static bool IsPressure(Unit unit)     { return IsQuantity(unit, Quantity.Pressure); }
+        public static bool IsHumidity(Unit unit)     { return IsQuantity(unit, Quantity.Humidity); }
+        public static bool IsError(Unit unit)        { return IsQuantity(unit, Quantity.Error); }
+		public static bool IsLength(Unit unit)       { return IsQuantity(unit, Quantity.Length); }
+		public static bool IsDensity(Unit unit)      { return IsQuantity(unit, Quantity.Density); }
+		public static bool IsEnergy(Unit unit)       { return IsQuantity(unit, Quantity.Energy); }
+        public static bool IsPulses(Unit unit)       { return IsQuantity(unit, Quantity.Pulses); }
+        public static bool IsPulsePerLtr(Unit unit)  { return IsQuantity(unit, Quantity.PulsePerLtr); }
+        public static bool IsPulsePerKWh(Unit unit)  { return IsQuantity(unit, Quantity.PulsePerKWh); }
+        public static bool IsConductivity(Unit unit) { return IsQuantity(unit, Quantity.Conductivity); }
 
 
 
diff --git a/Config/Config.csproj b/Config/Config.csproj
index 86e773cad..02d5ceb6b 100644
--- a/Config/Config.csproj
+++ b/Config/Config.csproj
@@ -69,7 +69,6 @@
   <ItemGroup>
     <Compile Include="CalendarEvent\ICalendarEvent.cs" />
     <Compile Include="Data.cs" />
-    <Compile Include="DatabaseSettings.cs" />
     <Compile Include="Entities\BenchPath.cs" />
     <Compile Include="Entities\CustomEvent.cs" />
     <Compile Include="Entities\Component.cs" />
@@ -81,7 +80,6 @@
     <Compile Include="Entities\IHasItemNr.cs" />
     <Compile Include="Entities\IHasName.cs" />
     <Compile Include="Entities\IHasValves.cs" />
-    <Compile Include="Entities\IParamsProvider.cs" />
     <Compile Include="Entities\MeasurementCorrection.cs" />
     <Compile Include="Entities\MetersPath.cs" />
     <Compile Include="Entities\OutputPath.cs" />
@@ -124,7 +122,6 @@
       <DesignTime>True</DesignTime>
       <DependentUpon>Strings.resx</DependentUpon>
     </Compile>
-    <Compile Include="Units.cs" />
     <Compile Include="Utils.cs" />
   </ItemGroup>
   <ItemGroup>
diff --git a/Config/DatabaseSettings.cs b/Config/DatabaseSettings.cs
deleted file mode 100644
index 3db4dbd2d..000000000
--- a/Config/DatabaseSettings.cs
+++ /dev/null
@@ -1,64 +0,0 @@
-///
-/// Copyright (c) 2013-2020 Sensus Slovensko a.s.
-///
-using System;
-using System.Text;
-using System.Xml.Serialization;
-
-namespace Config
-{
-    /// <summary>
-    /// Test bench database settings, contains bench name and settings od several databases
-    /// </summary>
-    public class DatabaseSettings : ICloneable, IComparable
-    {
-        // Public fields
-        public string BenchName;
-        public bool IsRealBench;
-        public Users.DBSettings ProceduresDBSettings;	/// Configuration database settings
-		public Users.DBSettings WaterMetersDBSettings;	/// Results database settings
-        public Users.DBSettings EventsDBSettings;	    /// Events database settings
-        public Users.DBSettings UsersDBSettings;		/// Shared configuration database settings
-
-        // Constructor
-        public DatabaseSettings()
-        {
-            BenchName = String.Empty;               /// Empty string (avoid null)
-            IsRealBench = false;
-			ProceduresDBSettings = new Users.DBSettings(Common.DBType.MySql, string.Empty);
-			WaterMetersDBSettings = new Users.DBSettings(Common.DBType.MySql, string.Empty);
-            EventsDBSettings = new Users.DBSettings(Common.DBType.MySql, string.Empty);
-			UsersDBSettings = new Users.DBSettings(Common.DBType.MySql, string.Empty);
-        }
-
-        public object Clone()
-        {
-            DatabaseSettings result = new DatabaseSettings();
-
-            result.BenchName    = BenchName;
-            result.IsRealBench  = IsRealBench;
-			result.ProceduresDBSettings = (Users.DBSettings)ProceduresDBSettings.Clone();
-			result.WaterMetersDBSettings = (Users.DBSettings)WaterMetersDBSettings.Clone();
-            result.EventsDBSettings = (Users.DBSettings)EventsDBSettings.Clone();
-            result.UsersDBSettings = (Users.DBSettings)UsersDBSettings.Clone();
-
-            return result;
-        }
-
-        public int CompareTo(object dbs2)
-        {
-            if (!(dbs2 is DatabaseSettings)) return 0;
-            return String.Compare(BenchName, (dbs2 as DatabaseSettings).BenchName);
-        }
-
-		public override string ToString()
-		{
-            return string.Format("{0} config={1} results={2} events={3} users={4}",
-                                 BenchName,
-                                 ProceduresDBSettings.ConnectionString,
-                                 WaterMetersDBSettings.ConnectionString,
-                                 EventsDBSettings.ConnectionString,
-                                 UsersDBSettings.ConnectionString);
-		}
-    }
-}
diff --git a/Config/Entities/ComponentProcedure.cs b/Config/Entities/ComponentProcedure.cs
index e0b17982c..32105d198 100644
--- a/Config/Entities/ComponentProcedure.cs
+++ b/Config/Entities/ComponentProcedure.cs
@@ -3,6 +3,7 @@
 ///
 using System;
 using System.IO;
+using Common;
 
 namespace Config.Entities
 {
diff --git a/Config/Entities/ComponentTest.cs b/Config/Entities/ComponentTest.cs
index ab0599282..12e9191ed 100644
--- a/Config/Entities/ComponentTest.cs
+++ b/Config/Entities/ComponentTest.cs
@@ -3,6 +3,7 @@
 ///
 using System;
 using System.IO;
+using Common;
 
 namespace Config.Entities
 {
diff --git a/Config/Entities/MeasurementCorrection.cs b/Config/Entities/MeasurementCorrection.cs
index 1d6a5acef..11ea46195 100644
--- a/Config/Entities/MeasurementCorrection.cs
+++ b/Config/Entities/MeasurementCorrection.cs
@@ -1,11 +1,12 @@
 ///
-/// Copyright (c) 2013-2018 Sensus Slovensko a.s.
+/// Copyright (c) 2013-2021 Sensus Slovensko a.s.
 ///
 using System;
+using System.Collections.Generic;
 
 namespace Config.Entities
 {
-	public class MeasurementCorrection
+	public class MeasurementCorrection : Common.IMeasurementCorrection
 	{
 		public virtual int Id { get; protected set; }
         public virtual int RangeIx { get; set; }        /// 0..5
@@ -21,5 +22,59 @@ namespace Config.Entities
         {
             RangeIx = rangeIx; 
         }
-	}
+
+
+        /// <summary>
+        /// Calculates corrected value from a list of corrections by interpolation.
+        /// It is assumed that values in the list 'corrections' are sorted.
+        /// </summary>
+        /// <param name="rawMeasurement">Raw uncorrected value</param>
+        /// <param name="corrections">Sorted (value, correction) pairs</param>
+        /// <returns>Corrected value</returns>
+        public static double CorrectedValue(double rawValue, IList<MeasurementCorrection> corrections)
+        {
+            return rawValue + GetCorrection(rawValue, corrections);
+        }
+
+        /// <summary>
+        /// Get a correction from a list of corrections by interpolation.
+        /// It is assumed that values in the list 'corrections' are sorted.
+        /// </summary>
+        /// <param name="rawMeasurement">Raw uncorrected value</param>
+        /// <param name="corrections">Sorted (value, correction) pairs</param>
+        /// <returns>Corrected value</returns>
+        public static double GetCorrection(double rawValue, IList<MeasurementCorrection> corrections)
+        {
+            if ((corrections == null) || (corrections.Count == 0)) return 0;    /// No correction
+
+            if (rawValue < corrections[0].Measurement)
+            {
+                /// rawValue is below the lowest value in the correction table
+                return corrections[0].Correction;
+            }
+
+            for (int i = 1; i < corrections.Count; i++)
+            {
+                if (rawValue < corrections[i].Measurement)
+                {
+                    double d1 = rawValue - corrections[i - 1].Measurement;
+                    double d2 = corrections[i].Measurement - rawValue;
+
+                    if (d1 + d2 <= float.Epsilon)
+                    {
+                        /// Neigboring values in the corection table are close to each other -> calculate the average
+                        return (corrections[i - 1].Correction + corrections[i].Correction) / 2.0;
+                    }
+                    else
+                    {
+                        /// Interpolate the correction from neigboring values in the corection table
+                        return (corrections[i - 1].Correction * d2 + corrections[i].Correction * d1) / (d1 + d2);
+                    }
+                }
+            }
+
+            /// rawValue is above the highest value in the correction table
+            return corrections[corrections.Count - 1].Correction;
+        }
+    }
 }
diff --git a/Config/Entities/Uncertainty.cs b/Config/Entities/Uncertainty.cs
index 9ce48c7bb..c13740ec3 100644
--- a/Config/Entities/Uncertainty.cs
+++ b/Config/Entities/Uncertainty.cs
@@ -1,11 +1,11 @@
 ///
-/// Copyright (c) 2019 Sensus Slovensko a.s.
+/// Copyright (c) 2019-2021 Sensus Slovensko a.s.
 ///
 using System;
 
 namespace Config.Entities
 {
-    public class Uncertainty
+    public class Uncertainty : Common.IUncertainty
     {
         public virtual int Id { get; protected set; }
         public virtual float Measurement { get; set; }
diff --git a/Config/Formulas.cs b/Config/Formulas.cs
index 212c03eb0..971177d57 100644
--- a/Config/Formulas.cs
+++ b/Config/Formulas.cs
@@ -4,6 +4,7 @@
 using System;
 using System.Collections.Generic;
 using log4net;
+using Common;
 
 namespace Config
 {
@@ -182,7 +183,7 @@ namespace Config
             double theta = temp / 100.0;
             double B = x0 * (((x3 * theta + x2) * theta + x1) * theta + 1) / (1 + x4 * theta);
 
-            return WaterDensityFromTemp(temp) * (1 + B * Config.Units.ConvertTo(Config.Unit.Pa, pressure));
+            return WaterDensityFromTemp(temp) * (1 + B * Units.ConvertTo(Unit.Pa, pressure));
         }
 
 
@@ -238,7 +239,7 @@ namespace Config
         /// <param name="rawMeasurement">Raw uncorrected value</param>
         /// <param name="corrections">Sorted (value, correction) pairs</param>
         /// <returns>Corrected value</returns>
-        public static double CorrectedValue(double rawValue, IList<Config.Entities.MeasurementCorrection> corrections)
+        public static double CorrectedValue(double rawValue, IList<IMeasurementCorrection> corrections)
         {
             return rawValue + GetCorrection(rawValue, corrections);
         }
@@ -250,7 +251,7 @@ namespace Config
         /// <param name="rawMeasurement">Raw uncorrected value</param>
         /// <param name="corrections">Sorted (value, correction) pairs</param>
         /// <returns>Corrected value</returns>
-        public static double GetCorrection(double rawValue, IList<Config.Entities.MeasurementCorrection> corrections)
+        public static double GetCorrection(double rawValue, IList<IMeasurementCorrection> corrections)
         {
             if ((corrections == null) || (corrections.Count == 0)) return 0;    /// No correction
 
@@ -316,11 +317,11 @@ namespace Config
             const double p_star_Pa = 16.53E6;               /// [Pa] (=16.53 MPa)
             const double T_star = 1386.0;                   /// [K]
 
-            double T_in_K = Config.Units.ConvertTo(Config.Unit.K, T_in);
-            double T_out_K = Config.Units.ConvertTo(Config.Unit.K, T_out);
+            double T_in_K = Units.ConvertTo(Unit.K, T_in);
+            double T_out_K = Units.ConvertTo(Unit.K, T_out);
             double tau_in = T_star / T_in_K;
             double tau_out = T_star / T_out_K;
-			double pi = Config.Units.ConvertTo(Config.Unit.Pa, pressure) / p_star_Pa;
+			double pi = Units.ConvertTo(Unit.Pa, pressure) / p_star_Pa;
 
             double h_in = tau_in * GammaTau(pi, tau_in) * R * T_in_K;
             double h_out = tau_out * GammaTau(pi, tau_out) * R * T_out_K;
diff --git a/EventViewer/EventViewerWnd.cs b/EventViewer/EventViewerWnd.cs
index 511625c3d..0c1ebc8d8 100644
--- a/EventViewer/EventViewerWnd.cs
+++ b/EventViewer/EventViewerWnd.cs
@@ -291,7 +291,7 @@ namespace EventViewer
         {
             try
             {
-                Users.GlobalData.RemoteUsersDB = new Users.DBSettings(Common.DBType.MySql, Program.LocalSettings.UsersDBConnString);
+                Users.GlobalData.RemoteUsersDB = new Common.DBSettings(Common.DBType.MySql, Program.LocalSettings.UsersDBConnString);
                 Users.Forms.LoginDlg dlg = new Users.Forms.LoginDlg();
                 if (dlg.ShowDialog() == DialogResult.OK)
                 {
diff --git a/ResetBatchNr/ResetBatchNr.csproj b/ResetBatchNr/ResetBatchNr.csproj
index bc9826334..e915e3ca7 100644
--- a/ResetBatchNr/ResetBatchNr.csproj
+++ b/ResetBatchNr/ResetBatchNr.csproj
@@ -48,9 +48,9 @@
     <None Include="App.config" />
   </ItemGroup>
   <ItemGroup>
-    <ProjectReference Include="..\Config\Config.csproj">
-      <Project>{743df7db-c7b6-42eb-986d-0f485e5588e4}</Project>
-      <Name>Config</Name>
+    <ProjectReference Include="..\Common\Common.csproj">
+      <Project>{c8939821-ba5c-4988-a3d0-bf53b74865c7}</Project>
+      <Name>Common</Name>
     </ProjectReference>
     <ProjectReference Include="..\TBF\TBF.csproj">
       <Project>{8648fd92-cda1-4c3a-b5f9-fe547ce1fa48}</Project>
diff --git a/Results/Forms/ManualEntryConfigCtrl.cs b/Results/Forms/ManualEntryConfigCtrl.cs
index d6e9aa83e..2e28258a7 100644
--- a/Results/Forms/ManualEntryConfigCtrl.cs
+++ b/Results/Forms/ManualEntryConfigCtrl.cs
@@ -115,12 +115,12 @@ namespace Results.Forms
         {
 			if (e.SubItem == (int)Column.Units)
 			{
-                Config.Quantity quantity = (e.Item.Tag as ManualEntryItemSpec).Quantity;
+                Quantity quantity = (e.Item.Tag as ManualEntryItemSpec).Quantity;
 				unitsCB.Items.Clear();
-				unitsCB.Items.Add(Config.Unit.None.ToDescription());				/// "---"
-				for (Config.Unit u = (Config.Unit)1; u < Config.Unit.Count; u++)
+				unitsCB.Items.Add(Unit.None.ToDescription());				/// "---"
+				for (Unit u = (Unit)1; u < Unit.Count; u++)
 				{
-					if (Config.Units.IsQuantity(u, quantity))  unitsCB.Items.Add(u.ToDescription());
+					if (Units.IsQuantity(u, quantity))  unitsCB.Items.Add(u.ToDescription());
 				}
 				selectedResultsListViewEx.StartEditing(unitsCB, e.Item, e.SubItem);
 			}
@@ -139,7 +139,7 @@ namespace Results.Forms
             {
                 case Column.Caption:    item.Caption = e.DisplayText;   return;
                 case Column.Units:
-                    for (Config.Unit u = 0; u < Config.Unit.Count; u++)
+                    for (Unit u = 0; u < Unit.Count; u++)
                     {
 						if (u.ToDescription().Equals(unitsCB.Text))
                         {
@@ -190,10 +190,10 @@ namespace Results.Forms
 		{
 			treeView.Nodes.Clear();
 
-			IList<Config.Quantity> quantities = new List<Config.Quantity>();
-			for (Config.Quantity q = 0; q < Config.Quantity.Count; q++) quantities.Add(q);
+			IList<Quantity> quantities = new List<Quantity>();
+			for (Quantity q = 0; q < Quantity.Count; q++) quantities.Add(q);
 
-			IList<Config.Quantity> sortedQuantities = quantities.OrderBy(x => x.ToDescription()).ToList();
+			IList<Quantity> sortedQuantities = quantities.OrderBy(x => x.ToDescription()).ToList();
 
 			foreach (var q in sortedQuantities)
 			{
diff --git a/Results/Forms/ResultsConfigCtrl.cs b/Results/Forms/ResultsConfigCtrl.cs
index e565dce59..ac87ef3e0 100644
--- a/Results/Forms/ResultsConfigCtrl.cs
+++ b/Results/Forms/ResultsConfigCtrl.cs
@@ -140,12 +140,12 @@ namespace Results.Forms
         {
 			if (e.SubItem == (int)Column.Units)
 			{
-				Config.Quantity quantity = (e.Item.Tag as WMeterRsltItemSpec).Quantity;
+				Quantity quantity = (e.Item.Tag as WMeterRsltItemSpec).Quantity;
 				unitsCB.Items.Clear();
-				unitsCB.Items.Add(Config.Unit.None.ToDescription());				/// "---"
-				for (Config.Unit u = (Config.Unit)1; u < Config.Unit.Count; u++)
+				unitsCB.Items.Add(Unit.None.ToDescription());				/// "---"
+				for (Unit u = (Unit)1; u < Unit.Count; u++)
 				{
-					if (Config.Units.IsQuantity(u, quantity))  unitsCB.Items.Add(u.ToDescription());
+					if (Units.IsQuantity(u, quantity))  unitsCB.Items.Add(u.ToDescription());
 				}
 				selectedResultsListViewEx.StartEditing(unitsCB, e.Item, e.SubItem);
 			}
@@ -164,7 +164,7 @@ namespace Results.Forms
             {
                 case Column.Caption:    item.Caption = e.DisplayText;   return;
                 case Column.Units:
-                    for (Config.Unit u = 0; u < Config.Unit.Count; u++)
+                    for (Unit u = 0; u < Unit.Count; u++)
                     {
 						if (u.ToDescription().Equals(unitsCB.Text))
                         {
@@ -241,10 +241,10 @@ namespace Results.Forms
 		{
 			treeView.Nodes.Clear();
 
-			IList<Config.Quantity> quantities = new List<Config.Quantity>();
-			for (Config.Quantity q = 0; q < Config.Quantity.Count; q++) quantities.Add(q);
+			IList<Quantity> quantities = new List<Quantity>();
+			for (Quantity q = 0; q < Quantity.Count; q++) quantities.Add(q);
 
-			IList<Config.Quantity> sortedQuantities = quantities.OrderBy(x => x.ToDescription()).ToList();
+			IList<Quantity> sortedQuantities = quantities.OrderBy(x => x.ToDescription()).ToList();
 
 			foreach (var q in sortedQuantities)
 			{
diff --git a/Results/ManualEntryItemSpec.cs b/Results/ManualEntryItemSpec.cs
index 8ac4df8d8..a3b2515e0 100644
--- a/Results/ManualEntryItemSpec.cs
+++ b/Results/ManualEntryItemSpec.cs
@@ -22,7 +22,7 @@ namespace Results
         public readonly Quantity Quantity;				/// Quantity
         public readonly ItemCategory Category;			/// 
         public string Caption;		                    /// Specifies item description to be printed as a caption (in the header, etc.)
-        public Config.Unit Units;	                    /// Specifies units for the output
+        public Unit Units;	                    /// Specifies units for the output
 
 
         public ManualEntryItemSpec Clone()
@@ -198,7 +198,7 @@ namespace Results
                             /// 
                             item.Caption = field[1].Replace("\n", "~");
                             item.Units = 0;
-                            for (Config.Unit u = 0; u < Config.Unit.Count; u++)
+                            for (Unit u = 0; u < Unit.Count; u++)
                             {
                                 if (u.ToString().Equals(field[2])) { item.Units = u; break; }
                             }
diff --git a/Results/Output/Printers/Label/LabelPrintDocument.cs b/Results/Output/Printers/Label/LabelPrintDocument.cs
index d7a9af3f3..cff74c19c 100644
--- a/Results/Output/Printers/Label/LabelPrintDocument.cs
+++ b/Results/Output/Printers/Label/LabelPrintDocument.cs
@@ -14,7 +14,7 @@ using GenCode128;
 
 namespace Results.Output.Printers.Label
 {
-	public class LabelPrintDocument : PrintersCommon
+    public class LabelPrintDocument : Common.Printers.PrintersCommon
 	{
         static QrEncoder encoder = new QrEncoder();
 
diff --git a/Results/Output/Printers/MultiLabel/MultiLabelPrintDocument.cs b/Results/Output/Printers/MultiLabel/MultiLabelPrintDocument.cs
index 3a090ab11..42c635527 100644
--- a/Results/Output/Printers/MultiLabel/MultiLabelPrintDocument.cs
+++ b/Results/Output/Printers/MultiLabel/MultiLabelPrintDocument.cs
@@ -14,7 +14,7 @@ using GenCode128;
 
 namespace Results.Output.Printers.MultiLabel
 {
-	public class MultiLabelPrintDocument : PrintersCommon
+    public class MultiLabelPrintDocument : Common.Printers.PrintersCommon
 	{
         static QrEncoder encoder = new QrEncoder();
 
diff --git a/Results/Output/Printers/Munich/MunichPrintDocument.cs b/Results/Output/Printers/Munich/MunichPrintDocument.cs
index 834455e27..cce2982f8 100644
--- a/Results/Output/Printers/Munich/MunichPrintDocument.cs
+++ b/Results/Output/Printers/Munich/MunichPrintDocument.cs
@@ -393,7 +393,7 @@ namespace Results.Output.Printers.Munich
                             Results.Entities.MeterTestRslt auxMtr = wm.GetMeterTestRslt(mtr.Name(), CompoundMeterId.CompoundAux);
 
                             table.AddRow(new string[] { mtr.Name(),
-                                                    Config.Units.ConvertTo(Config.Unit.lph, flow_ctv).ToString("F1"),
+                                                    Units.ConvertTo(Unit.lph, flow_ctv).ToString("F1"),
 					                                mtr.TestRslt.VolumeCTV.ToString("F2"),
 						                            mainMtr.VolumeMeter.ToString("F2"),
 						                            auxMtr.VolumeMeter.ToString("F2"),
@@ -405,7 +405,7 @@ namespace Results.Output.Printers.Munich
                         else
                         {
                             table.AddRow(new string[] { mtr.Name(),
-                                                    Config.Units.ConvertTo(Config.Unit.lph, flow_ctv).ToString("F1"),
+                                                    Units.ConvertTo(Unit.lph, flow_ctv).ToString("F1"),
 					                                mtr.TestRslt.VolumeCTV.ToString("F2"),
                                                     mtr.VolumeMeter.ToString("F2"),
 						                            "-",
@@ -456,12 +456,12 @@ namespace Results.Output.Printers.Munich
                         double flow_ctv = (mtr.TestRslt.TestTime != 0) ? (3.6 * mtr.TestRslt.VolumeCTV / mtr.TestRslt.TestTime) : 0;
 
                         table.AddRow(new string[] { mtr.Name(),
-                                                Config.Units.ConvertTo(Config.Unit.lph, flow_ctv).ToString("F1"),
+                                                Units.ConvertTo(Unit.lph, flow_ctv).ToString("F1"),
                                                 mtr.TestRslt.TempDownMean.ToString("F2"),
 					                            mtr.TestRslt.DensityDiv.ToString("F2"),
 					                            mtr.TestTime.ToString("F1"),
-					                            Config.Units.ConvertTo(Config.Unit.bar, mtr.TestRslt.PressUpMean).ToString("F3"),
-					                            Config.Units.ConvertTo(Config.Unit.bar, mtr.TestRslt.PressDownMean).ToString("F3") },
+					                            Units.ConvertTo(Unit.bar, mtr.TestRslt.PressUpMean).ToString("F3"),
+					                            Units.ConvertTo(Unit.bar, mtr.TestRslt.PressDownMean).ToString("F3") },
                                      horizontalAlignment,
                                      verticalAlignment);
                     }
@@ -592,7 +592,7 @@ namespace Results.Output.Printers.Munich
             iTop += SpacingOne;
             
             PrintAt(e, Tab1, iTop, "Luftdruck");
-            PrintAt(e, Tab2, iTop, Config.Units.ConvertTo(Config.Unit.mbar, wm.Batch.AmbPressMean()).ToString("F0") + " mbar");
+            PrintAt(e, Tab2, iTop, Units.ConvertTo(Unit.mbar, wm.Batch.AmbPressMean()).ToString("F0") + " mbar");
 
             iTop += SpacingOne;
 
diff --git a/Results/Output/Printers/OnePerBatch/OnePerBatchPrintDocument.cs b/Results/Output/Printers/OnePerBatch/OnePerBatchPrintDocument.cs
index 3d31d616b..8269b71b4 100644
--- a/Results/Output/Printers/OnePerBatch/OnePerBatchPrintDocument.cs
+++ b/Results/Output/Printers/OnePerBatch/OnePerBatchPrintDocument.cs
@@ -11,7 +11,7 @@ using Results.Resources;
 
 namespace Results.Output.Printers.OnePerBatch
 {
-	public class OnePerBatchPrintDocument : PrintersCommon
+    public class OnePerBatchPrintDocument : Common.Printers.PrintersCommon
 	{
         const float GapBetweenTableColumns = 10;
         const float GapBetweenCommonColumns = 10;
diff --git a/Results/Output/Printers/OnePerMeter/OnePerMeterPrintDocument.cs b/Results/Output/Printers/OnePerMeter/OnePerMeterPrintDocument.cs
index 9cb01273d..12b02fe25 100644
--- a/Results/Output/Printers/OnePerMeter/OnePerMeterPrintDocument.cs
+++ b/Results/Output/Printers/OnePerMeter/OnePerMeterPrintDocument.cs
@@ -14,7 +14,7 @@ using Results.Resources;
 
 namespace Results.Output.Printers.OnePerMeter
 {
-	public class OnePerMeterPrintDocument : PrintersCommon
+    public class OnePerMeterPrintDocument : Common.Printers.PrintersCommon
 	{
         const float GapBetweenTableColumns = 10;
         const float GapBetweenCommonColumns = 10;
diff --git a/Results/Output/Table.cs b/Results/Output/Table.cs
index 811fe3570..6672b492e 100644
--- a/Results/Output/Table.cs
+++ b/Results/Output/Table.cs
@@ -96,7 +96,7 @@ namespace Results.Output
                     else
                     {
                         bool isHeader = (colIx < Style.LeftHeadersCount) || (rowIx < Style.TopHeadersCount);
-                        SizeF size = Printers.PrintersCommon.Measure(e, Rows[rowIx][colIx], isHeader ? Style.HeaderFont : Style.Font);
+                        SizeF size = Common.Printers.PrintersCommon.Measure(e, Rows[rowIx][colIx], isHeader ? Style.HeaderFont : Style.Font);
                         if (size.Width > columnWidth[colIx]) columnWidth[colIx] = size.Width;
                         if (size.Height > rowHeight[rowIx]) rowHeight[rowIx] = size.Height;
                     }
@@ -159,7 +159,7 @@ namespace Results.Output
                     {
                         /// In not a separator line
                         bool isHeader = (colIx < Style.LeftHeadersCount) || (rowIx < Style.TopHeadersCount);
-                        SizeF size = Printers.PrintersCommon.Measure(e, Rows[rowIx][colIx], isHeader ? Style.HeaderFont : Style.Font);
+                        SizeF size = Common.Printers.PrintersCommon.Measure(e, Rows[rowIx][colIx], isHeader ? Style.HeaderFont : Style.Font);
                         if ((Style.ColumnWidths != null) && (Style.ColumnWidths.Length > colIx))
                         {
                             size.Width = Style.ColumnWidths[colIx]; /// Override measurement if column width is defined
@@ -246,7 +246,7 @@ namespace Results.Output
                     for (int colIndex = 0; colIndex < tblColumnsCount; colIndex++)
                     {
                         bool isHeader = (colIndex < Style.LeftHeadersCount) || (rowIndex < Style.TopHeadersCount);
-                        Printers.PrintersCommon.PrintAt(e, oneTableRow[colIndex],
+                        Common.Printers.PrintersCommon.PrintAt(e, oneTableRow[colIndex],
                                                            isHeader ? Style.HeaderFont : Style.Font,
                                                            columnPos[colIndex],
                                                            rowPos[rowIndex],
diff --git a/Results/Output/WMChart.cs b/Results/Output/WMChart.cs
index b43a96020..8f84ba88a 100644
--- a/Results/Output/WMChart.cs
+++ b/Results/Output/WMChart.cs
@@ -16,10 +16,10 @@ namespace Results.Output
     {
         public static Chart GetChart(WaterMeter wm, bool isPrinter)
         {
-			return GetChart(wm, isPrinter, Config.Unit.lph);
+			return GetChart(wm, isPrinter, Unit.lph);
         }
 
-		public static Chart GetChart(WaterMeter wm, bool isPrinter, Config.Unit flowUnit)
+		public static Chart GetChart(WaterMeter wm, bool isPrinter, Unit flowUnit)
         {
             double maxFlow = 0;
             IList<PointF> unsortedPoints = new List<PointF>();
@@ -32,7 +32,7 @@ namespace Results.Output
                     (td.Publish == (sbyte)Publish.Always || (!isPrinter && td.Publish == (sbyte)Publish.OnScreen)))
                 {
                     if (flow > maxFlow) maxFlow = flow;
-                    unsortedPoints.Add(new PointF((float)Config.Units.ConvertTo(flowUnit, flow), (float)mtr.Error));
+                    unsortedPoints.Add(new PointF((float)Units.ConvertTo(flowUnit, flow), (float)mtr.Error));
                 }
             }
             IEnumerable<PointF> sortedPoints = unsortedPoints.OrderBy(x => x.X);
@@ -68,8 +68,8 @@ namespace Results.Output
                                                    1000000, 2000000, 5000000,
                                                    10000000 };
             double spacer = 0.8;
-            double from = Config.Units.ConvertTo(flowUnit, wm.WaterMeterData.Q1_Qmin);
-            double to = Config.Units.ConvertTo(flowUnit, isQ4 ? wm.WaterMeterData.Q4_Qmax : wm.WaterMeterData.Q3_Qn);
+            double from = Units.ConvertTo(flowUnit, wm.WaterMeterData.Q1_Qmin);
+            double to = Units.ConvertTo(flowUnit, isQ4 ? wm.WaterMeterData.Q4_Qmax : wm.WaterMeterData.Q3_Qn);
             bool inRange = false;
             for (int i = 0; i < xs.Count - 3; i += 3)
             {
@@ -112,18 +112,18 @@ namespace Results.Output
             Legend legend1 = new Legend { Name = "Legend1" };
 
             Series upperLimit = new Series { Name = Strings.Upper_limit, ChartArea = "ChartArea1", ChartType = SeriesChartType.Line, Color = Color.Red };
-            upperLimit.Points.AddXY(Config.Units.ConvertTo(flowUnit, wm.WaterMeterData.Q1_Qmin), 5);
-            upperLimit.Points.AddXY(Config.Units.ConvertTo(flowUnit, wm.WaterMeterData.Q2_Qt), 5);
-            upperLimit.Points.AddXY(Config.Units.ConvertTo(flowUnit, wm.WaterMeterData.Q2_Qt), 2);
-            upperLimit.Points.AddXY(Config.Units.ConvertTo(flowUnit, wm.WaterMeterData.Q3_Qn), 2);
-            if (isQ4) upperLimit.Points.AddXY(Config.Units.ConvertTo(flowUnit, wm.WaterMeterData.Q4_Qmax), 2);
+            upperLimit.Points.AddXY(Units.ConvertTo(flowUnit, wm.WaterMeterData.Q1_Qmin), 5);
+            upperLimit.Points.AddXY(Units.ConvertTo(flowUnit, wm.WaterMeterData.Q2_Qt), 5);
+            upperLimit.Points.AddXY(Units.ConvertTo(flowUnit, wm.WaterMeterData.Q2_Qt), 2);
+            upperLimit.Points.AddXY(Units.ConvertTo(flowUnit, wm.WaterMeterData.Q3_Qn), 2);
+            if (isQ4) upperLimit.Points.AddXY(Units.ConvertTo(flowUnit, wm.WaterMeterData.Q4_Qmax), 2);
 
             Series lowerLimit = new Series { Name = Strings.Lower_limit, ChartArea = "ChartArea1", ChartType = SeriesChartType.Line, Color = Color.Red };
-            lowerLimit.Points.AddXY(Config.Units.ConvertTo(flowUnit, wm.WaterMeterData.Q1_Qmin), -5);
-            lowerLimit.Points.AddXY(Config.Units.ConvertTo(flowUnit, wm.WaterMeterData.Q2_Qt), -5);
-            lowerLimit.Points.AddXY(Config.Units.ConvertTo(flowUnit, wm.WaterMeterData.Q2_Qt), -2);
-            lowerLimit.Points.AddXY(Config.Units.ConvertTo(flowUnit, wm.WaterMeterData.Q3_Qn), -2);
-            if (isQ4) lowerLimit.Points.AddXY(Config.Units.ConvertTo(flowUnit, wm.WaterMeterData.Q4_Qmax), -2);
+            lowerLimit.Points.AddXY(Units.ConvertTo(flowUnit, wm.WaterMeterData.Q1_Qmin), -5);
+            lowerLimit.Points.AddXY(Units.ConvertTo(flowUnit, wm.WaterMeterData.Q2_Qt), -5);
+            lowerLimit.Points.AddXY(Units.ConvertTo(flowUnit, wm.WaterMeterData.Q2_Qt), -2);
+            lowerLimit.Points.AddXY(Units.ConvertTo(flowUnit, wm.WaterMeterData.Q3_Qn), -2);
+            if (isQ4) lowerLimit.Points.AddXY(Units.ConvertTo(flowUnit, wm.WaterMeterData.Q4_Qmax), -2);
 
             Series line = new Series { Name = Strings.Relative_error, ChartArea = "ChartArea1", ChartType = SeriesChartType.Line, Color = Color.DeepSkyBlue };
             Series dots = new Series { Name = Strings.Relative_error + " ", ChartArea = "ChartArea1", ChartType = SeriesChartType.Point, Color = Color.RoyalBlue };
diff --git a/Results/Results.csproj b/Results/Results.csproj
index 8507ae71e..fa731fdf0 100644
--- a/Results/Results.csproj
+++ b/Results/Results.csproj
@@ -157,9 +157,6 @@
       <SubType>Component</SubType>
     </Compile>
     <Compile Include="Output\Printers\OnePerBatch\OnePerBatchPrinterCfg.cs" />
-    <Compile Include="Output\Printers\PrintersCommon.cs">
-      <SubType>Component</SubType>
-    </Compile>
     <Compile Include="Output\Printers\Munich\MunichPrintDocument.cs">
       <SubType>Component</SubType>
     </Compile>
diff --git a/Results/WMeterRsltItemSpec.cs b/Results/WMeterRsltItemSpec.cs
index ddf1d0315..9d4bc64c0 100644
--- a/Results/WMeterRsltItemSpec.cs
+++ b/Results/WMeterRsltItemSpec.cs
@@ -665,9 +665,9 @@ namespace Results
             return FormatDbl(units, format, precisionOrEmpty, dfltPrecision, v, CultureInfo.CurrentCulture);
         }
         /// 
-        public static string FormatDbl(Config.Unit units, string format, string precisionOrEmpty, string dfltPrecision, double v, CultureInfo ci)
+        public static string FormatDbl(Unit units, string format, string precisionOrEmpty, string dfltPrecision, double v, CultureInfo ci)
         {
-            double val = Config.Units.ConvertTo(units, v);
+            double val = Common.Units.ConvertTo(units, v);
 
             string precision = string.IsNullOrEmpty(precisionOrEmpty) ? dfltPrecision : precisionOrEmpty;
 
@@ -704,8 +704,8 @@ namespace Results
         /// 
         public static string FormatDbl(Unit units, string format, string precisionOrEmpty, string dfltPrecision, double v1, double v2, CultureInfo ci)
         {
-            double val1 = Config.Units.ConvertTo(units, v1);
-            double val2 = Config.Units.ConvertTo(units, v2);
+            double val1 = Common.Units.ConvertTo(units, v1);
+            double val2 = Common.Units.ConvertTo(units, v2);
 
             string precision = string.IsNullOrEmpty(precisionOrEmpty) ? dfltPrecision : precisionOrEmpty;
 
@@ -819,7 +819,7 @@ namespace Results
                             item.Caption = field[1].Replace("\n", "~");
 							item.TestID = field[2];
 							item.Units = 0;
-							for (Config.Unit u = 0; u < Config.Unit.Count; u++)
+							for (Unit u = 0; u < Unit.Count; u++)
 							{
 								if (u.ToString().Equals(field[3])) { item.Units = u; break; }
 							}
diff --git a/TBF/LocalSettings.cs b/TBF/LocalSettings.cs
index 49483931b..320241952 100644
--- a/TBF/LocalSettings.cs
+++ b/TBF/LocalSettings.cs
@@ -41,7 +41,7 @@ namespace TBF
         /// Names and database settings of test benches.
         /// </summary>
         [XmlArrayAttribute("TestBenches")]
-        public Config.DatabaseSettings[] TestBenches;
+        public DatabaseSettings[] TestBenches;
 
         [XmlIgnore]
         public int BenchesCount { get { return (TestBenches != null) ? TestBenches.GetLength(0) : 0; } }
diff --git a/TBF/Program.cs b/TBF/Program.cs
index 57a9f15af..edc4f2a18 100644
--- a/TBF/Program.cs
+++ b/TBF/Program.cs
@@ -256,8 +256,8 @@ namespace TBF
                         {
 							log.FatalFormat("Test bench name: {0}", loginDlgBench.BenchName);
 
-							GlobalData.RemoteUsersDB = LocalSettings.TestBenches[i].UsersDBSettings;
-							GlobalData.LocalUsersDB = LocalSettings.TestBenches[i].ProceduresDBSettings;
+							Users.GlobalData.RemoteUsersDB = LocalSettings.TestBenches[i].UsersDBSettings;
+							Users.GlobalData.LocalUsersDB = LocalSettings.TestBenches[i].ProceduresDBSettings;
 
                             Users.Entities.User loadedUser = null;
                             try
@@ -276,7 +276,7 @@ namespace TBF
                                     authorized = loadedUser.Authorize(loginDlgBench.Alias, loginDlgBench.Password, reqGrpMembership);
                                     if (authorized)
                                     {
-                                        GlobalData.AuthorizedAs = Common.AuthorizedAs.PowerUser;
+                                        Users.GlobalData.AuthorizedAs = Common.AuthorizedAs.PowerUser;
                                     }
 								}
 
@@ -285,7 +285,7 @@ namespace TBF
                                 ///
 								if (!authorized)
 								{
-									DBSettings[] dbs = new DBSettings[] { GlobalData.RemoteUsersDB, GlobalData.LocalUsersDB };
+									DBSettings[] dbs = new DBSettings[] { Users.GlobalData.RemoteUsersDB, Users.GlobalData.LocalUsersDB };
 
 									authorizedAs = Common.AuthorizedAs.RemoteUser;		/// Try remote DB first
 
@@ -356,7 +356,7 @@ namespace TBF
                                     /// Copy the selected bench settings to CurrentBench.
                                     /// Clone() guarantees that current bench settings wont be modified
                                     /// when user modifies the database settings in DatabaseSettingsDlg.
-									TBF.DB.CurrentBench = (Config.DatabaseSettings)LocalSettings.TestBenches[i].Clone();
+									TBF.DB.CurrentBench = (DatabaseSettings)LocalSettings.TestBenches[i].Clone();
                                     Results.DB.DbType = TBF.DB.CurrentBench.WaterMetersDBSettings.DbType;
                                     Results.DB.ConnectionString = TBF.DB.CurrentBench.WaterMetersDBSettings.ConnectionString;
 
diff --git a/TBF/Rig/DataContainers/BackupAndSecurityOptions/ComponentCfg.cs b/TBF/Rig/DataContainers/BackupAndSecurityOptions/ComponentCfg.cs
index 759b4355d..5379ea5b6 100644
--- a/TBF/Rig/DataContainers/BackupAndSecurityOptions/ComponentCfg.cs
+++ b/TBF/Rig/DataContainers/BackupAndSecurityOptions/ComponentCfg.cs
@@ -13,7 +13,7 @@ namespace TBF.Rig.DataContainers.BackupAndSecurityOptions
 	/// <summary>
     /// Holds backup and security options - serializable configuration.
 	/// </summary>
-	public class ComponentCfg : ComponentCfgBase, Generic.IComponentCfg, Config.Entities.IParamsProvider
+	public class ComponentCfg : ComponentCfgBase, Generic.IComponentCfg, IParamsProvider
 	{
 		public static XmlSerializer Serializer = XmlSerializer.FromTypes(new[] { typeof(ComponentCfg) })[0];
         public override XmlSerializer GetSerializer() { return Serializer; }
@@ -111,7 +111,7 @@ namespace TBF.Rig.DataContainers.BackupAndSecurityOptions
             prms.PasswdExpirationPeriodDays = this.PasswdExpirationPeriodDays;
         }
 
-        public Config.Entities.IParamsProvider Clone()
+        public IParamsProvider Clone()
         {
             ComponentCfg pars = new ComponentCfg();
             CopyContentTo(pars);
diff --git a/TBF/Rig/DataContainers/BenchInfo/Extended/ComponentCfg.cs b/TBF/Rig/DataContainers/BenchInfo/Extended/ComponentCfg.cs
index 0eb591ed4..baf3c460d 100644
--- a/TBF/Rig/DataContainers/BenchInfo/Extended/ComponentCfg.cs
+++ b/TBF/Rig/DataContainers/BenchInfo/Extended/ComponentCfg.cs
@@ -304,7 +304,7 @@ namespace TBF.Rig.DataContainers.BenchInfo.Extended
             prms.LenghtUnit = this.LenghtUnit;
         }
 
-        public Config.Entities.IParamsProvider Clone()
+        public IParamsProvider Clone()
         {
             ComponentCfg pars = new ComponentCfg();
             CopyContentTo(pars);
diff --git a/TBF/Rig/DataContainers/BenchInfo/iPerl/ComponentCfg.cs b/TBF/Rig/DataContainers/BenchInfo/iPerl/ComponentCfg.cs
index 55d70df37..8dc60e029 100644
--- a/TBF/Rig/DataContainers/BenchInfo/iPerl/ComponentCfg.cs
+++ b/TBF/Rig/DataContainers/BenchInfo/iPerl/ComponentCfg.cs
@@ -15,7 +15,7 @@ namespace TBF.Rig.DataContainers.BenchInfo.iPerl
 	/// <summary>
 	/// Holds information identifying the test bench - serializable configuration.
 	/// </summary>
-    public class ComponentCfg : ComponentCfgBase, Generic.IComponentCfg, Config.Entities.IParamsProvider, TBF.Rig.GenericDevices.ICalibInfoCfg
+    public class ComponentCfg : ComponentCfgBase, Generic.IComponentCfg, IParamsProvider, TBF.Rig.GenericDevices.ICalibInfoCfg
 	{
 		public static XmlSerializer Serializer = XmlSerializer.FromTypes(new[] { typeof(ComponentCfg) })[0];
         public override XmlSerializer GetSerializer() { return Serializer; }
@@ -351,7 +351,7 @@ namespace TBF.Rig.DataContainers.BenchInfo.iPerl
             prms.MaxTestIndex = this.MaxTestIndex;
         }
 
-        public Config.Entities.IParamsProvider Clone()
+        public IParamsProvider Clone()
         {
             ComponentCfg pars = new ComponentCfg();
             CopyContentTo(pars);
diff --git a/TBF/Rig/DataContainers/Buoyancy/ComponentCfg.cs b/TBF/Rig/DataContainers/Buoyancy/ComponentCfg.cs
index 77c202141..bad35d46f 100644
--- a/TBF/Rig/DataContainers/Buoyancy/ComponentCfg.cs
+++ b/TBF/Rig/DataContainers/Buoyancy/ComponentCfg.cs
@@ -13,7 +13,7 @@ namespace TBF.Rig.DataContainers.Buoyancy
 	/// <summary>
     /// Holds backup and security options - serializable configuration.
 	/// </summary>
-    public class ComponentCfg : ComponentCfgBase, Generic.IComponentCfg, Config.Entities.IParamsProvider, TBF.Rig.GenericDevices.ICalibInfoCfg
+    public class ComponentCfg : ComponentCfgBase, Generic.IComponentCfg, IParamsProvider, TBF.Rig.GenericDevices.ICalibInfoCfg
 	{
 		public static XmlSerializer Serializer = XmlSerializer.FromTypes(new[] { typeof(ComponentCfg) })[0];
         public override XmlSerializer GetSerializer() { return Serializer; }
@@ -114,7 +114,7 @@ namespace TBF.Rig.DataContainers.Buoyancy
             prms.Buoyancy = this.Buoyancy;
         }
 
-        public Config.Entities.IParamsProvider Clone()
+        public IParamsProvider Clone()
         {
             ComponentCfg pars = new ComponentCfg();
             CopyContentTo(pars);
diff --git a/TBF/Rig/DataContainers/Density/ComponentCfg.cs b/TBF/Rig/DataContainers/Density/ComponentCfg.cs
index f729e9776..c7c1c64a0 100644
--- a/TBF/Rig/DataContainers/Density/ComponentCfg.cs
+++ b/TBF/Rig/DataContainers/Density/ComponentCfg.cs
@@ -13,7 +13,7 @@ namespace TBF.Rig.DataContainers.Density
 	/// <summary>
     /// Holds backup and security options - serializable configuration.
 	/// </summary>
-    public class ComponentCfg : ComponentCfgBase, Generic.IComponentCfg, Config.Entities.IParamsProvider, TBF.Rig.GenericDevices.ICalibInfoCfg
+    public class ComponentCfg : ComponentCfgBase, Generic.IComponentCfg, IParamsProvider, TBF.Rig.GenericDevices.ICalibInfoCfg
 	{
 		public static XmlSerializer Serializer = XmlSerializer.FromTypes(new[] { typeof(ComponentCfg) })[0];
         public override XmlSerializer GetSerializer() { return Serializer; }
@@ -124,7 +124,7 @@ namespace TBF.Rig.DataContainers.Density
             prms.AtTemperature = this.AtTemperature;
         }
 
-        public Config.Entities.IParamsProvider Clone()
+        public IParamsProvider Clone()
         {
             ComponentCfg pars = new ComponentCfg();
             CopyContentTo(pars);
diff --git a/TBF/Rig/DataContainers/Evaporation/Component.cs b/TBF/Rig/DataContainers/Evaporation/Component.cs
index 42df1f0b1..e38486807 100644
--- a/TBF/Rig/DataContainers/Evaporation/Component.cs
+++ b/TBF/Rig/DataContainers/Evaporation/Component.cs
@@ -22,7 +22,7 @@ namespace TBF.Rig.DataContainers.Evaporation
         /// </summary>
         public double EvaporationRate(double temperature)
         {
-            return Config.Formulas.GetCorrection(temperature, Corrections) / 3600.0;    /// Converted from kg/h to kg/s
+            return MeasurementCorrection.GetCorrection(temperature, Corrections) / 3600.0;    /// Converted from kg/h to kg/s
         }
 
 
diff --git a/TBF/Rig/DataEntry/DataStream/EntryFormCfg.cs b/TBF/Rig/DataEntry/DataStream/EntryFormCfg.cs
index ee745a0b4..75cc45934 100644
--- a/TBF/Rig/DataEntry/DataStream/EntryFormCfg.cs
+++ b/TBF/Rig/DataEntry/DataStream/EntryFormCfg.cs
@@ -115,7 +115,7 @@ namespace TBF.Rig.DataEntry.DataStream
             prms.ShowCycleEndForm = this.ShowCycleEndForm;
         }
 
-        public Config.Entities.IParamsProvider Clone()
+        public IParamsProvider Clone()
         {
             EntryFormCfg pars = new EntryFormCfg();
             CopyContentTo(pars);
diff --git a/TBF/Rig/DataEntry/Double24/EntryFormCfg.cs b/TBF/Rig/DataEntry/Double24/EntryFormCfg.cs
index 39af0f77f..40c5cb3c1 100644
--- a/TBF/Rig/DataEntry/Double24/EntryFormCfg.cs
+++ b/TBF/Rig/DataEntry/Double24/EntryFormCfg.cs
@@ -179,7 +179,7 @@ namespace TBF.Rig.DataEntry.Double24
             prms.Column2Destination = Column2Destination;
         }
 
-        public Config.Entities.IParamsProvider Clone()
+        public IParamsProvider Clone()
         {
             EntryFormCfg pars = new EntryFormCfg();
             CopyContentTo(pars);
diff --git a/TBF/Rig/DataEntry/HeatMeters12/EntryFormCfg.cs b/TBF/Rig/DataEntry/HeatMeters12/EntryFormCfg.cs
index 5e0f16871..3ab084c85 100644
--- a/TBF/Rig/DataEntry/HeatMeters12/EntryFormCfg.cs
+++ b/TBF/Rig/DataEntry/HeatMeters12/EntryFormCfg.cs
@@ -19,13 +19,13 @@ namespace TBF.Rig.DataEntry.HeatMeters12
 		///
 		/// Serialized parameters
 		///
-        public Config.Unit DefaultUnits;
+        public Common.Unit DefaultUnits;
 		public bool EnterSerialNrsAtTheEnd;
 		public bool ShowCycleEndForm;
         public bool SensusExtensions;
 
         [XmlIgnore]
-        public Config.Unit Units;
+        public Common.Unit Units;
 
 		/// Private parameterless constructor invoked by all other (public) constructors
 		EntryFormCfg()
@@ -39,7 +39,7 @@ namespace TBF.Rig.DataEntry.HeatMeters12
 			Factory = factory;
 			ParentName = string.Empty;
 
-            DefaultUnits = Config.Unit.kWh;
+            DefaultUnits = Common.Unit.kWh;
 			EnterSerialNrsAtTheEnd = false;
 			ShowCycleEndForm = false;
 			SensusExtensions = false;
diff --git a/TBF/Rig/DataEntry/HeatMeters12/TestStartEndForm.cs b/TBF/Rig/DataEntry/HeatMeters12/TestStartEndForm.cs
index a5ad73b4a..f455c005f 100644
--- a/TBF/Rig/DataEntry/HeatMeters12/TestStartEndForm.cs
+++ b/TBF/Rig/DataEntry/HeatMeters12/TestStartEndForm.cs
@@ -204,9 +204,9 @@ namespace TBF.Rig.DataEntry.HeatMeters12
 		{
             Localize();
 
-            for (Config.Unit units = 0; units < Config.Unit.Count; units++)
+            for (Common.Unit units = 0; units < Common.Unit.Count; units++)
             {
-                if (Config.Units.IsEnergy(units)) unitsComboBox.Items.Add(units.ToString());
+                if (Common.Units.IsEnergy(units)) unitsComboBox.Items.Add(units.ToString());
             }
             unitsComboBox.Text = entryFormCfg.Units.ToString();
 
@@ -283,7 +283,7 @@ namespace TBF.Rig.DataEntry.HeatMeters12
 
 		private void unitsComboBox_SelectedIndexChanged(object sender, EventArgs e)
 		{
-			for (Config.Unit u = 0; u < Config.Unit.Count; u++)
+			for (Common.Unit u = 0; u < Common.Unit.Count; u++)
 			{
 				if (u.ToString() == unitsComboBox.Text)
 				{
@@ -304,7 +304,7 @@ namespace TBF.Rig.DataEntry.HeatMeters12
 						if (endTextBoxes[i].Visible && endTextBoxes[i].Enabled)
 						{
 							WMEndState[i] = Utils.ParseUDouble(endTextBoxes[i].Text);
-                            EnergyEndState[i] = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(energyEndTextBoxes[i].Text));
+                            EnergyEndState[i] = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(energyEndTextBoxes[i].Text));
 						}
 					}
 				}
@@ -317,7 +317,7 @@ namespace TBF.Rig.DataEntry.HeatMeters12
 							WMStartStateStr[i] = startTextBoxes[i].Text;
 							WMStartState[i] = Utils.ParseUDouble(startTextBoxes[i].Text);
 							EnergyStartStateStr[i] = energyStartTextBoxes[i].Text;
-                            EnergyStartState[i] = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(energyStartTextBoxes[i].Text));
+                            EnergyStartState[i] = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(energyStartTextBoxes[i].Text));
 						}
 					}
 				}
@@ -507,8 +507,8 @@ namespace TBF.Rig.DataEntry.HeatMeters12
 			double err = 0;
 			try
 			{
-				double endState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox13.Text));
-				double startState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox13.Text));
+				double endState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox13.Text));
+				double startState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox13.Text));
 				err = 100.0 * (endState - startState - refEnergy) / refEnergy;
 			}
 			catch { err = 1000.0f; };
@@ -519,8 +519,8 @@ namespace TBF.Rig.DataEntry.HeatMeters12
 			double err = 0;
 			try
 			{
-				double endState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox14.Text));
-				double startState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox14.Text));
+				double endState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox14.Text));
+				double startState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox14.Text));
 				err = 100.0 * (endState - startState - refEnergy) / refEnergy;
 			}
 			catch { err = 1000.0f; };
@@ -531,8 +531,8 @@ namespace TBF.Rig.DataEntry.HeatMeters12
 			double err = 0;
 			try
 			{
-				double endState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox15.Text));
-				double startState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox15.Text));
+				double endState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox15.Text));
+				double startState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox15.Text));
 				err = 100.0 * (endState - startState - refEnergy) / refEnergy;
 			}
 			catch { err = 1000.0f; };
@@ -543,8 +543,8 @@ namespace TBF.Rig.DataEntry.HeatMeters12
 			double err = 0;
 			try
 			{
-				double endState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox16.Text));
-				double startState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox16.Text));
+				double endState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox16.Text));
+				double startState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox16.Text));
 				err = 100.0 * (endState - startState - refEnergy) / refEnergy;
 			}
 			catch { err = 1000.0f; };
@@ -555,8 +555,8 @@ namespace TBF.Rig.DataEntry.HeatMeters12
 			double err = 0;
 			try
 			{
-				double endState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox17.Text));
-				double startState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox17.Text));
+				double endState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox17.Text));
+				double startState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox17.Text));
 				err = 100.0 * (endState - startState - refEnergy) / refEnergy;
 			}
 			catch { err = 1000.0f; };
@@ -567,8 +567,8 @@ namespace TBF.Rig.DataEntry.HeatMeters12
 			double err = 0;
 			try
 			{
-				double endState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox18.Text));
-				double startState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox18.Text));
+				double endState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox18.Text));
+				double startState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox18.Text));
 				err = 100.0 * (endState - startState - refEnergy) / refEnergy;
 			}
 			catch { err = 1000.0f; };
@@ -579,8 +579,8 @@ namespace TBF.Rig.DataEntry.HeatMeters12
 			double err = 0;
 			try
 			{
-				double endState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox19.Text));
-				double startState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox19.Text));
+				double endState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox19.Text));
+				double startState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox19.Text));
 				err = 100.0 * (endState - startState - refEnergy) / refEnergy;
 			}
 			catch { err = 1000.0f; };
@@ -591,8 +591,8 @@ namespace TBF.Rig.DataEntry.HeatMeters12
 			double err = 0;
 			try
 			{
-				double endState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox20.Text));
-				double startState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox20.Text));
+				double endState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox20.Text));
+				double startState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox20.Text));
 				err = 100.0 * (endState - startState - refEnergy) / refEnergy;
 			}
 			catch { err = 1000.0f; };
@@ -603,8 +603,8 @@ namespace TBF.Rig.DataEntry.HeatMeters12
 			double err = 0;
 			try
 			{
-				double endState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox21.Text));
-				double startState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox21.Text));
+				double endState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox21.Text));
+				double startState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox21.Text));
 				err = 100.0 * (endState - startState - refEnergy) / refEnergy;
 			}
 			catch { err = 1000.0f; };
@@ -615,8 +615,8 @@ namespace TBF.Rig.DataEntry.HeatMeters12
 			double err = 0;
 			try
 			{
-				double endState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox22.Text));
-				double startState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox22.Text));
+				double endState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox22.Text));
+				double startState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox22.Text));
 				err = 100.0 * (endState - startState - refEnergy) / refEnergy;
 			}
 			catch { err = 1000.0f; };
@@ -627,8 +627,8 @@ namespace TBF.Rig.DataEntry.HeatMeters12
 			double err = 0;
 			try
 			{
-				double endState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox23.Text));
-				double startState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox23.Text));
+				double endState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox23.Text));
+				double startState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox23.Text));
 				err = 100.0 * (endState - startState - refEnergy) / refEnergy;
 			}
 			catch { err = 1000.0f; };
@@ -639,8 +639,8 @@ namespace TBF.Rig.DataEntry.HeatMeters12
 			double err = 0;
 			try
 			{
-				double endState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox24.Text));
-				double startState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox24.Text));
+				double endState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox24.Text));
+				double startState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox24.Text));
 				err = 100.0 * (endState - startState - refEnergy) / refEnergy;
 			}
 			catch { err = 1000.0f; };
diff --git a/TBF/Rig/DataEntry/HeatMeters6/EntryFormCfg.cs b/TBF/Rig/DataEntry/HeatMeters6/EntryFormCfg.cs
index fd97ece5d..c5aa35a00 100644
--- a/TBF/Rig/DataEntry/HeatMeters6/EntryFormCfg.cs
+++ b/TBF/Rig/DataEntry/HeatMeters6/EntryFormCfg.cs
@@ -19,13 +19,13 @@ namespace TBF.Rig.DataEntry.HeatMeters6
 		///
 		/// Serialized parameters
 		///
-        public Config.Unit DefaultUnits;
+        public Common.Unit DefaultUnits;
 		public bool EnterSerialNrsAtTheEnd;
 		public bool ShowCycleEndForm;
         public bool SensusExtensions;
 
         [XmlIgnore]
-        public Config.Unit Units;
+        public Common.Unit Units;
 
 		/// Private parameterless constructor invoked by all other (public) constructors
 		EntryFormCfg()
@@ -39,7 +39,7 @@ namespace TBF.Rig.DataEntry.HeatMeters6
 			Factory = factory;
 			ParentName = string.Empty;
 
-            DefaultUnits = Config.Unit.kWh;
+            DefaultUnits = Common.Unit.kWh;
 			EnterSerialNrsAtTheEnd = false;
 			ShowCycleEndForm = false;
 			SensusExtensions = false;
diff --git a/TBF/Rig/DataEntry/HeatMeters6/TestStartEndForm.cs b/TBF/Rig/DataEntry/HeatMeters6/TestStartEndForm.cs
index 86c233588..7f3a366e0 100644
--- a/TBF/Rig/DataEntry/HeatMeters6/TestStartEndForm.cs
+++ b/TBF/Rig/DataEntry/HeatMeters6/TestStartEndForm.cs
@@ -196,9 +196,9 @@ namespace TBF.Rig.DataEntry.HeatMeters6
 		{
             Localize();
 
-            for (Config.Unit units = 0; units < Config.Unit.Count; units++)
+            for (Common.Unit units = 0; units < Common.Unit.Count; units++)
             {
-                if (Config.Units.IsEnergy(units)) unitsComboBox.Items.Add(units.ToString());
+                if (Common.Units.IsEnergy(units)) unitsComboBox.Items.Add(units.ToString());
             }
             unitsComboBox.Text = entryFormCfg.Units.ToString();
 
@@ -275,7 +275,7 @@ namespace TBF.Rig.DataEntry.HeatMeters6
 
 		private void unitsComboBox_SelectedIndexChanged(object sender, EventArgs e)
 		{
-			for (Config.Unit u = 0; u < Config.Unit.Count; u++)
+			for (Common.Unit u = 0; u < Common.Unit.Count; u++)
 			{
 				if (u.ToString() == unitsComboBox.Text)
 				{
@@ -296,7 +296,7 @@ namespace TBF.Rig.DataEntry.HeatMeters6
 						if (endTextBoxes[i].Visible && endTextBoxes[i].Enabled)
 						{
 							WMEndState[i] = Utils.ParseUDouble(endTextBoxes[i].Text);
-                            EnergyEndState[i] = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(energyEndTextBoxes[i].Text));
+                            EnergyEndState[i] = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(energyEndTextBoxes[i].Text));
 						}
 					}
 				}
@@ -309,7 +309,7 @@ namespace TBF.Rig.DataEntry.HeatMeters6
 							WMStartStateStr[i] = startTextBoxes[i].Text;
 							WMStartState[i] = Utils.ParseUDouble(startTextBoxes[i].Text);
 							EnergyStartStateStr[i] = energyStartTextBoxes[i].Text;
-                            EnergyStartState[i] = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(energyStartTextBoxes[i].Text));
+                            EnergyStartState[i] = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(energyStartTextBoxes[i].Text));
 						}
 					}
 				}
@@ -426,8 +426,8 @@ namespace TBF.Rig.DataEntry.HeatMeters6
 			double err = 0;
 			try
 			{
-				double endState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox13.Text));
-				double startState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox13.Text));
+				double endState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox13.Text));
+				double startState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox13.Text));
 				err = 100.0 * (endState - startState - refEnergy) / refEnergy;
 			}
 			catch { err = 1000.0f; };
@@ -438,8 +438,8 @@ namespace TBF.Rig.DataEntry.HeatMeters6
 			double err = 0;
 			try
 			{
-				double endState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox14.Text));
-				double startState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox14.Text));
+				double endState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox14.Text));
+				double startState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox14.Text));
 				err = 100.0 * (endState - startState - refEnergy) / refEnergy;
 			}
 			catch { err = 1000.0f; };
@@ -450,8 +450,8 @@ namespace TBF.Rig.DataEntry.HeatMeters6
 			double err = 0;
 			try
 			{
-				double endState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox15.Text));
-				double startState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox15.Text));
+				double endState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox15.Text));
+				double startState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox15.Text));
 				err = 100.0 * (endState - startState - refEnergy) / refEnergy;
 			}
 			catch { err = 1000.0f; };
@@ -462,8 +462,8 @@ namespace TBF.Rig.DataEntry.HeatMeters6
 			double err = 0;
 			try
 			{
-				double endState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox16.Text));
-				double startState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox16.Text));
+				double endState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox16.Text));
+				double startState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox16.Text));
 				err = 100.0 * (endState - startState - refEnergy) / refEnergy;
 			}
 			catch { err = 1000.0f; };
@@ -474,8 +474,8 @@ namespace TBF.Rig.DataEntry.HeatMeters6
 			double err = 0;
 			try
 			{
-				double endState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox17.Text));
-				double startState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox17.Text));
+				double endState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox17.Text));
+				double startState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox17.Text));
 				err = 100.0 * (endState - startState - refEnergy) / refEnergy;
 			}
 			catch { err = 1000.0f; };
@@ -486,8 +486,8 @@ namespace TBF.Rig.DataEntry.HeatMeters6
 			double err = 0;
 			try
 			{
-				double endState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox18.Text));
-				double startState = Config.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox18.Text));
+				double endState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(endTextBox18.Text));
+				double startState = Common.Units.ConvertFrom(entryFormCfg.Units, Utils.ParseUDouble(startTextBox18.Text));
 				err = 100.0 * (endState - startState - refEnergy) / refEnergy;
 			}
 			catch { err = 1000.0f; };
diff --git a/TBF/Rig/DataEntry/Standard24/EntryFormNoStartEnd.cs b/TBF/Rig/DataEntry/Standard24/EntryFormNoStartEnd.cs
index f57772b4a..0eb094b63 100644
--- a/TBF/Rig/DataEntry/Standard24/EntryFormNoStartEnd.cs
+++ b/TBF/Rig/DataEntry/Standard24/EntryFormNoStartEnd.cs
@@ -40,7 +40,7 @@ namespace TBF.Rig.DataEntry.Standard24
         System.Windows.Forms.Form modelessDlg;
         public bool Completed { get { return (modelessDlg is IHasCompleted) ? (modelessDlg as IHasCompleted).Completed : true; } }
 
-        Config.Unit volumeUnit;
+        Common.Unit volumeUnit;
 		double refVolume;
 		double errLimLo;
 		double errLimHi;
@@ -76,7 +76,7 @@ namespace TBF.Rig.DataEntry.Standard24
             wmStartStateStr = new string[TBF.Data.WMsCount];
             wmEndState = new double[TBF.Data.WMsCount];
             wmCycleEndState = new string[TBF.Data.WMsCount];
-            volumeUnit = (TBF.Rig.Sequences.ProcessData.BenchInfo != null) ? TBF.Rig.Sequences.ProcessData.BenchInfo.VolumeUnit : Config.Unit.l;
+            volumeUnit = (TBF.Rig.Sequences.ProcessData.BenchInfo != null) ? TBF.Rig.Sequences.ProcessData.BenchInfo.VolumeUnit : Common.Unit.l;
             currentOp = CurrentOp.None;
             log.FatalFormat("{0} initialized: {1}", Name, this);
         }
diff --git a/TBF/Rig/Elde/ControlComWrap.cs b/TBF/Rig/Elde/ControlComWrap.cs
index 59c76fb95..eae7ff5a2 100644
--- a/TBF/Rig/Elde/ControlComWrap.cs
+++ b/TBF/Rig/Elde/ControlComWrap.cs
@@ -170,11 +170,11 @@ namespace TBF.Rig.Elde
 
                 if (nr % 2 == 1)
                 {
-                    text = string.Format("T = {0:F1} °F", Config.Units.ConvertTo(Config.Unit.F, temp));
+                    text = string.Format("T = {0:F1} °F", Common.Units.ConvertTo(Common.Unit.F, temp));
                 }
                 else if (temp != 0)
                 {
-                    text = string.Format("SP = {0:F1} °F", Config.Units.ConvertTo(Config.Unit.F, temp));
+                    text = string.Format("SP = {0:F1} °F", Common.Units.ConvertTo(Common.Unit.F, temp));
                 }
                 else
                 {
diff --git a/TBF/Rig/Elde/Diverter/Diverter.cs b/TBF/Rig/Elde/Diverter/Diverter.cs
index c9ae808ea..498ecdbc1 100644
--- a/TBF/Rig/Elde/Diverter/Diverter.cs
+++ b/TBF/Rig/Elde/Diverter/Diverter.cs
@@ -4,6 +4,7 @@
 using System;
 using System.Collections.Generic;
 using log4net;
+using Config.Entities;
 using Dirichlet.Numerics;
 using TBF.Rig.Generic;
 using TBF.Boxes;
@@ -51,7 +52,7 @@ namespace TBF.Rig.Elde.Diverter
         /// </summary>
         public double TestTimeCorrection(double flow)
         {
-            return Config.Formulas.GetCorrection(flow, Corrections);
+            return MeasurementCorrection.GetCorrection(flow, Corrections);
         }
 
 
diff --git a/TBF/Rig/Elde/FixedStartRegisterReader/RegisterReaderCfg.cs b/TBF/Rig/Elde/FixedStartRegisterReader/RegisterReaderCfg.cs
index ef1347866..585c4f7b6 100644
--- a/TBF/Rig/Elde/FixedStartRegisterReader/RegisterReaderCfg.cs
+++ b/TBF/Rig/Elde/FixedStartRegisterReader/RegisterReaderCfg.cs
@@ -1,11 +1,9 @@
 ///
 /// Copyright (c) 2013-2016 Sensus Metering Systems
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
-using Config.Entities;
+using Common;
 using TBF.Rig.Generic;
 
 namespace TBF.Rig.Elde.FixedStartRegisterReader
diff --git a/TBF/Rig/Elde/FlowMeter/FlowMeter.cs b/TBF/Rig/Elde/FlowMeter/FlowMeter.cs
index a46aca745..129f47a21 100644
--- a/TBF/Rig/Elde/FlowMeter/FlowMeter.cs
+++ b/TBF/Rig/Elde/FlowMeter/FlowMeter.cs
@@ -4,6 +4,7 @@
 using System;
 using System.Collections.Generic;
 using log4net;
+using Config.Entities;
 using TBF.Boxes;
 using TBF.Resources;
 
@@ -26,12 +27,12 @@ namespace TBF.Rig.Elde.FlowMeter
             if (flow == 0) return LtrPerPulse;      /// To avoid division by zero
 
             /// Apply correction
-            var rangeCorrections = new List<Config.Entities.MeasurementCorrection>();
+            var rangeCorrections = new List<MeasurementCorrection>();
             foreach (var corr in Corrections)
             {
                 if (corr.RangeIx == rangeIx) rangeCorrections.Add(corr);
             }
-            double correctedFlow = Config.Formulas.CorrectedValue(flow, rangeCorrections);
+            double correctedFlow = MeasurementCorrection.CorrectedValue(flow, rangeCorrections);
             return (LtrPerPulse * correctedFlow / flow);
         }
 
diff --git a/TBF/Rig/Elde/FlowMeterTriplet/FlowMeter.cs b/TBF/Rig/Elde/FlowMeterTriplet/FlowMeter.cs
index c98c3c7c5..7c279cf1a 100644
--- a/TBF/Rig/Elde/FlowMeterTriplet/FlowMeter.cs
+++ b/TBF/Rig/Elde/FlowMeterTriplet/FlowMeter.cs
@@ -4,6 +4,7 @@
 using System;
 using System.Collections.Generic;
 using log4net;
+using Config.Entities;
 using TBF.Boxes;
 
 namespace TBF.Rig.Elde.FlowMeterTriplet
@@ -23,7 +24,7 @@ namespace TBF.Rig.Elde.FlowMeterTriplet
         public double LtrPerPulseCorrected(double flow, int rangeIx)
         {
             /// Apply correction
-            double correctedFlow = Config.Formulas.CorrectedValue(flow, Corrections);
+            double correctedFlow = MeasurementCorrection.CorrectedValue(flow, Corrections);
             return (LtrPerPulse * correctedFlow / flow);
         }
 
diff --git a/TBF/Rig/Elde/PressureMeter/PressureMeter.cs b/TBF/Rig/Elde/PressureMeter/PressureMeter.cs
index 414bdc802..1e982f590 100644
--- a/TBF/Rig/Elde/PressureMeter/PressureMeter.cs
+++ b/TBF/Rig/Elde/PressureMeter/PressureMeter.cs
@@ -93,8 +93,8 @@ namespace TBF.Rig.Elde.PressureMeter
         /// <returns>Pressure in mBar</returns>
         public float ReadPressure()
         {
-            double rawPressure = Config.Units.ConvertFrom(Config.Unit.kPa, ControlBoard.Pressure(Idx0));
-            double correctedPressure = Config.Formulas.CorrectedValue(rawPressure, Corrections);
+            double rawPressure = Common.Units.ConvertFrom(Common.Unit.kPa, ControlBoard.Pressure(Idx0));
+            double correctedPressure = Config.Entities.MeasurementCorrection.CorrectedValue(rawPressure, Corrections);
             return (float)correctedPressure;
         }
 
diff --git a/TBF/Rig/Elde/RegulValve/SetFlowOp.cs b/TBF/Rig/Elde/RegulValve/SetFlowOp.cs
index 683ffe94d..5e8f9e07b 100644
--- a/TBF/Rig/Elde/RegulValve/SetFlowOp.cs
+++ b/TBF/Rig/Elde/RegulValve/SetFlowOp.cs
@@ -4,6 +4,7 @@
 using System;
 using System.Collections.Generic;
 using log4net;
+using Config.Entities;
 using TBF.Rig.GenericDevices;
 using TBF.Boxes;
 
@@ -97,8 +98,8 @@ namespace TBF.Rig.Elde.RegulValve
             nominalFlow = flowMeter.NominalFlow;
             maximalFlow = nominalFlow * 1.25;
 
-            double rdrdFlowLoBeforeCorr = requiredFlowLo - Config.Formulas.GetCorrection(requiredFlowLo, flowMeter.Corrections);
-            double rdrdFlowHiBeforeCorr = requiredFlowHi - Config.Formulas.GetCorrection(requiredFlowHi, flowMeter.Corrections);
+            double rdrdFlowLoBeforeCorr = requiredFlowLo - MeasurementCorrection.GetCorrection(requiredFlowLo, flowMeter.Corrections);
+            double rdrdFlowHiBeforeCorr = requiredFlowHi - MeasurementCorrection.GetCorrection(requiredFlowHi, flowMeter.Corrections);
             this.reqFlowAve = (rdrdFlowLoBeforeCorr + rdrdFlowHiBeforeCorr) / 2;
             this.requiredFlowLo = (RqrdFlowRangeRatio * rdrdFlowLoBeforeCorr) + ((1 - RqrdFlowRangeRatio) * this.reqFlowAve);   /// Move the lower limit a bit of the range up
             this.requiredFlowHi = (RqrdFlowRangeRatio * rdrdFlowHiBeforeCorr) + ((1 - RqrdFlowRangeRatio) * this.reqFlowAve);   /// Move the upper limit a bit of the range down
diff --git a/TBF/Rig/Elde/TempMeter/TempMeter.cs b/TBF/Rig/Elde/TempMeter/TempMeter.cs
index 9531905be..0e94b8cb7 100644
--- a/TBF/Rig/Elde/TempMeter/TempMeter.cs
+++ b/TBF/Rig/Elde/TempMeter/TempMeter.cs
@@ -87,7 +87,7 @@ namespace TBF.Rig.Elde.TempMeter
         {
 			if (Cfg.DebugLevel == DebugMode.Normal)
 			{
-				return Config.Formulas.CorrectedValue((double)ControlBoard.Temperature(Idx0), Corrections);
+				return Config.Entities.MeasurementCorrection.CorrectedValue((double)ControlBoard.Temperature(Idx0), Corrections);
 			}
 			else if (Cfg.DebugLevel == DebugMode.Simulate)
 			{
diff --git a/TBF/Rig/Elde/TempMeterInternal/TempMeter.cs b/TBF/Rig/Elde/TempMeterInternal/TempMeter.cs
index b2acffb47..53263460c 100644
--- a/TBF/Rig/Elde/TempMeterInternal/TempMeter.cs
+++ b/TBF/Rig/Elde/TempMeterInternal/TempMeter.cs
@@ -80,7 +80,7 @@ namespace TBF.Rig.Elde.TempMeterInternal
 
         public double ReadTemperature()
         {
-            return Config.Formulas.CorrectedValue((double)ControlBoard.Temperature(Idx0), Corrections);
+            return Config.Entities.MeasurementCorrection.CorrectedValue((double)ControlBoard.Temperature(Idx0), Corrections);
         }
 
 		/// <summary>
diff --git a/TBF/Rig/Elde/TempMeterMeret/TempMeter.cs b/TBF/Rig/Elde/TempMeterMeret/TempMeter.cs
index 709bcbfb4..b579ddba1 100644
--- a/TBF/Rig/Elde/TempMeterMeret/TempMeter.cs
+++ b/TBF/Rig/Elde/TempMeterMeret/TempMeter.cs
@@ -73,7 +73,7 @@ namespace TBF.Rig.Elde.TempMeterMeret
 
         public double ReadTemperature()
         {
-            return Config.Formulas.CorrectedValue((double)ControlBoard.Temperature(tempMtrCfg.TempIdx0), Corrections);
+            return Config.Entities.MeasurementCorrection.CorrectedValue((double)ControlBoard.Temperature(tempMtrCfg.TempIdx0), Corrections);
         }
 
 		/// <summary>
diff --git a/TBF/Rig/Elde/TempMeterMeret/TempMeterCfg.cs b/TBF/Rig/Elde/TempMeterMeret/TempMeterCfg.cs
index fad4c7a0e..cc741e8d0 100644
--- a/TBF/Rig/Elde/TempMeterMeret/TempMeterCfg.cs
+++ b/TBF/Rig/Elde/TempMeterMeret/TempMeterCfg.cs
@@ -11,7 +11,7 @@ using TBF.Rig.Generic;
 
 namespace TBF.Rig.Elde.TempMeterMeret
 {
-    public class TempMeterCfg : ComponentCfgBase, IChildComponentCfg, Config.Entities.IParamsProvider, TBF.Rig.GenericDevices.ICalibInfoCfg
+    public class TempMeterCfg : ComponentCfgBase, IChildComponentCfg, IParamsProvider, TBF.Rig.GenericDevices.ICalibInfoCfg
 	{
 		public static XmlSerializer Serializer = XmlSerializer.FromTypes(new[] { typeof(TempMeterCfg) })[0];
 		public override XmlSerializer GetSerializer() { return Serializer; }
@@ -175,7 +175,7 @@ namespace TBF.Rig.Elde.TempMeterMeret
         }
 
 
-        public Config.Entities.IParamsProvider Clone()
+        public IParamsProvider Clone()
         {
             TempMeterCfg pars = new TempMeterCfg();
             CopyContentTo(pars);
diff --git a/TBF/Rig/Hart/Common/HartCfg.cs b/TBF/Rig/Hart/Common/HartCfg.cs
index 325acdbdb..0ef221be6 100644
--- a/TBF/Rig/Hart/Common/HartCfg.cs
+++ b/TBF/Rig/Hart/Common/HartCfg.cs
@@ -11,7 +11,7 @@ using TBF.Rig.Generic;
 
 namespace TBF.Rig.Hart.Common
 {
-    public class HartCfg : ComponentCfgBase, Generic.IComponentCfg, Config.Entities.IParamsProvider
+    public class HartCfg : ComponentCfgBase, Generic.IComponentCfg, IParamsProvider
 	{
 		public static XmlSerializer Serializer = XmlSerializer.FromTypes(new[] { typeof(HartCfg) })[0];
 		public override XmlSerializer GetSerializer() { return Serializer; }
@@ -234,7 +234,7 @@ namespace TBF.Rig.Hart.Common
         }
 
 
-        public Config.Entities.IParamsProvider Clone()
+        public IParamsProvider Clone()
         {
             HartCfg pars = new HartCfg();
             CopyContentTo(pars);
diff --git a/TBF/Rig/Hart/Nivotrack/Nivotrack.cs b/TBF/Rig/Hart/Nivotrack/Nivotrack.cs
index 333490634..8d6d5d78c 100644
--- a/TBF/Rig/Hart/Nivotrack/Nivotrack.cs
+++ b/TBF/Rig/Hart/Nivotrack/Nivotrack.cs
@@ -196,7 +196,7 @@ namespace TBF.Rig.Hart.Nivotrack
         /// <returns></returns>
 		public double ReadLevel()
 		{
-            return Config.Formulas.CorrectedValue(rawLevel_mm, Corrections);
+            return Config.Entities.MeasurementCorrection.CorrectedValue(rawLevel_mm, Corrections);
 		}
 
 		/// <returns>Reference to the operation</returns>
diff --git a/TBF/Rig/Hart/Nivotrack/NivotrackCfg.cs b/TBF/Rig/Hart/Nivotrack/NivotrackCfg.cs
index f9b1872a6..824f909b3 100644
--- a/TBF/Rig/Hart/Nivotrack/NivotrackCfg.cs
+++ b/TBF/Rig/Hart/Nivotrack/NivotrackCfg.cs
@@ -12,7 +12,7 @@ using TBF.Rig.Generic;
 
 namespace TBF.Rig.Hart.Nivotrack
 {
-    public class NivotrackCfg : ComponentCfgBase, Generic.IChildComponentCfg, Config.Entities.IParamsProvider, GenericDevices.ICalibInfoCfg
+    public class NivotrackCfg : ComponentCfgBase, Generic.IChildComponentCfg, IParamsProvider, GenericDevices.ICalibInfoCfg
 	{
 		public static XmlSerializer Serializer = XmlSerializer.FromTypes(new[] { typeof(NivotrackCfg) })[0];
 		public override XmlSerializer GetSerializer() { return Serializer; }
@@ -182,7 +182,7 @@ namespace TBF.Rig.Hart.Nivotrack
         }
 
 
-        public Config.Entities.IParamsProvider Clone()
+        public IParamsProvider Clone()
         {
             NivotrackCfg pars = new NivotrackCfg();
             CopyContentTo(pars);
diff --git a/TBF/Rig/MettlerToledo/Standard/BalanceDev.cs b/TBF/Rig/MettlerToledo/Standard/BalanceDev.cs
index af10ce965..9fb42b1d7 100644
--- a/TBF/Rig/MettlerToledo/Standard/BalanceDev.cs
+++ b/TBF/Rig/MettlerToledo/Standard/BalanceDev.cs
@@ -285,7 +285,7 @@ namespace TBF.Rig.MettlerToledo.Standard
 		/// Get the serial number
 		/// </summary>
 		/// <remarks>After a successful SetUnits(kg) mass is still sent in g. MH 15.10.2013</remarks>
-		public void SendSetUnitsCmd(Config.Unit unit)
+		public void SendSetUnitsCmd(Common.Unit unit)
 		{
 			if (balanceCfg.DebugLevel == DebugMode.Simulate) return;
 
@@ -305,23 +305,23 @@ namespace TBF.Rig.MettlerToledo.Standard
 			stringBuilder.Clear();
 			switch (unit)
 			{
-				case Config.Unit.g:
+				case Common.Unit.g:
         			log.InfoFormat("{0} - SetUnits({1}) - \"U g\\r\\n\"", Name, unit);
                     serialPort.Write("U g\r\n");
                     break;
-                case Config.Unit.t:
+                case Common.Unit.t:
         			log.InfoFormat("{0} - SetUnits({1}) - \"U t\\r\\n\"", Name, unit);
                     serialPort.Write("U t\r\n");
                     break;
-                case Config.Unit.lb:
+                case Common.Unit.lb:
         			log.InfoFormat("{0} - SetUnits({1}) - \"U lb\\r\\n\"", Name, unit);
                     serialPort.Write("U lb\r\n");
                     break;
-                case Config.Unit.oz:
+                case Common.Unit.oz:
         			log.InfoFormat("{0} - SetUnits({1}) - \"U oz\\r\\n\"", Name, unit);
                     serialPort.Write("U oz\r\n");
                     break;
-                case Config.Unit.kg:
+                case Common.Unit.kg:
                 default:
                     log.InfoFormat("{0} - SetUnits({1}) - \"U kg\\r\\n\"", Name, unit);
                     serialPort.Write("U kg\r\n");
@@ -430,7 +430,7 @@ namespace TBF.Rig.MettlerToledo.Standard
 										CultureInfo.InvariantCulture,
                                         out mass))
 					{
-                        mass = Config.Units.ConvertFrom(ParseUnit(field[2]), mass);
+                        mass = Common.Units.ConvertFrom(ParseUnit(field[2]), mass);
                         Masses[balanceNr] = mass;
                         msrmntState = MsrmntState.Valid;
 						log.InfoFormat("{0} - Balance response = \"{1}<cr><lf>\", Mass = {2}", Name, received, mass);
@@ -441,7 +441,7 @@ namespace TBF.Rig.MettlerToledo.Standard
                                         CultureInfo.InvariantCulture,
                                         out mass))
                     {
-                        mass = Config.Units.ConvertFrom(ParseUnit(field[3]), mass);
+                        mass = Common.Units.ConvertFrom(ParseUnit(field[3]), mass);
                         Masses[balanceNr] = mass;
                         msrmntState = MsrmntState.Valid;
                         log.InfoFormat("{0} - Balance response = \"{1}<cr><lf>\", Mass = {2}", Name, received, mass);
@@ -469,7 +469,7 @@ namespace TBF.Rig.MettlerToledo.Standard
                                         CultureInfo.InvariantCulture,
                                         out mass))
                     {
-                        mass = Config.Units.ConvertFrom(ParseUnit(field[2]), mass);
+                        mass = Common.Units.ConvertFrom(ParseUnit(field[2]), mass);
                         Masses[balanceNr] = mass;
                         msrmntState = MsrmntState.Valid;
                         log.InfoFormat("{0} - Balance response = \"{1}<cr><lf>\", Mass = {2}", Name, received, mass);
@@ -497,7 +497,7 @@ namespace TBF.Rig.MettlerToledo.Standard
 										CultureInfo.InvariantCulture,
                                         out mass))
 					{
-                        mass = Config.Units.ConvertFrom(ParseUnit(field[2]), mass);
+                        mass = Common.Units.ConvertFrom(ParseUnit(field[2]), mass);
                         msrmntState = MsrmntState.Valid;
 						log.InfoFormat("{0} - Balance response = \"{1}<cr><lf>\", Tara = {2}", Name, received, mass);
                     }
@@ -515,7 +515,7 @@ namespace TBF.Rig.MettlerToledo.Standard
                                         CultureInfo.InvariantCulture,
                                         out mass))
                     {
-                        mass = Config.Units.ConvertFrom(ParseUnit(field[3]), mass);
+                        mass = Common.Units.ConvertFrom(ParseUnit(field[3]), mass);
                         msrmntState = MsrmntState.Valid;
                         log.InfoFormat("{0} - Balance response = \"{1}<cr><lf>\", Tara = {2}", Name, received, mass);
                     }
@@ -623,13 +623,13 @@ namespace TBF.Rig.MettlerToledo.Standard
         /// </summary>
         /// <param name="unitStr">String: "kg", "g", "t", "lb" or "oz" expected</param>
         /// <returns></returns>
-        protected Config.Unit ParseUnit(string unitStr)
+        protected Common.Unit ParseUnit(string unitStr)
         {
-            if (unitStr == "g") return Config.Unit.g;
-            if (unitStr == "t") return Config.Unit.t;
-            if (unitStr == "lb") return Config.Unit.lb;
-            if (unitStr == "oz") return Config.Unit.oz;
-            return Config.Unit.kg;
+            if (unitStr == "g") return Common.Unit.g;
+            if (unitStr == "t") return Common.Unit.t;
+            if (unitStr == "lb") return Common.Unit.lb;
+            if (unitStr == "oz") return Common.Unit.oz;
+            return Common.Unit.kg;
         }
 	}
 }
diff --git a/TBF/Rig/MettlerToledo/Standard/BalanceNewDev.cs b/TBF/Rig/MettlerToledo/Standard/BalanceNewDev.cs
index 4da69ac41..7611bfbb6 100644
--- a/TBF/Rig/MettlerToledo/Standard/BalanceNewDev.cs
+++ b/TBF/Rig/MettlerToledo/Standard/BalanceNewDev.cs
@@ -162,7 +162,7 @@ namespace TBF.Rig.MettlerToledo.Standard
                             double.TryParse(field[2], NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign | NumberStyles.AllowLeadingWhite,
                                             CultureInfo.InvariantCulture, out mass))
                         {
-                            mass = Config.Units.ConvertFrom(ParseUnit(field[3]), mass);
+                            mass = Common.Units.ConvertFrom(ParseUnit(field[3]), mass);
                             Masses[balanceNr] = mass;
                             msrmntState = MsrmntState.Valid;
 							log.InfoFormat("{0} - Balance response = {1}, Mass = {2}", Name,
@@ -205,7 +205,7 @@ namespace TBF.Rig.MettlerToledo.Standard
                             double.TryParse(field[2], NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign | NumberStyles.AllowLeadingWhite,
                                             CultureInfo.InvariantCulture, out mass))
                         {
-                            mass = Config.Units.ConvertFrom(ParseUnit(field[3]), mass);
+                            mass = Common.Units.ConvertFrom(ParseUnit(field[3]), mass);
                             msrmntState = MsrmntState.Valid;
                             log.WarnFormat("{0} - Balance response = {1}, Mass = {2}", Name,
                                             received.Replace("\r", "<cr>").Replace("\n", "<lf>"), mass);
@@ -270,7 +270,7 @@ namespace TBF.Rig.MettlerToledo.Standard
         /// </summary>
         /// <param name="units"></param>
         /// <returns>SetUnitsOp instance reference casted to IOperaton</returns>
-        public IOperation SetUnitsOp(Config.Unit units)
+        public IOperation SetUnitsOp(Common.Unit units)
         {
             return new SetUnitsOp(this, units);
         }
diff --git a/TBF/Rig/MettlerToledo/Standard/BalanceOld.cs b/TBF/Rig/MettlerToledo/Standard/BalanceOld.cs
index 0d9205980..782b836ad 100644
--- a/TBF/Rig/MettlerToledo/Standard/BalanceOld.cs
+++ b/TBF/Rig/MettlerToledo/Standard/BalanceOld.cs
@@ -123,7 +123,7 @@ namespace TBF.Rig.MettlerToledo.Standard
                             double.TryParse(field[2], NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign | NumberStyles.AllowLeadingWhite,
                                             CultureInfo.InvariantCulture, out mass))
                         {
-                            mass = Config.Units.ConvertFrom(ParseUnit(field[3]), mass);
+                            mass = Common.Units.ConvertFrom(ParseUnit(field[3]), mass);
                             Masses[balanceNr] = mass;
                             msrmntState = MsrmntState.Valid;
 							log.InfoFormat("{0} - Balance response = {1}, Mass = {2}", Name,
@@ -133,7 +133,7 @@ namespace TBF.Rig.MettlerToledo.Standard
                             double.TryParse(field[2], NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign | NumberStyles.AllowLeadingWhite,
                                             CultureInfo.InvariantCulture, out mass))
                         {
-                            mass = Config.Units.ConvertFrom(ParseUnit(field[3]), mass);
+                            mass = Common.Units.ConvertFrom(ParseUnit(field[3]), mass);
                             Masses[balanceNr] = mass;
                             msrmntState = MsrmntState.Valid;
 							log.InfoFormat("{0} - Balance response = {1}, Mass = {2}", Name,
@@ -176,7 +176,7 @@ namespace TBF.Rig.MettlerToledo.Standard
                             double.TryParse(field[2], NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign | NumberStyles.AllowLeadingWhite,
                                             CultureInfo.InvariantCulture, out mass))
                         {
-                            mass = Config.Units.ConvertFrom(ParseUnit(field[3]), mass);
+                            mass = Common.Units.ConvertFrom(ParseUnit(field[3]), mass);
                             msrmntState = MsrmntState.Valid;
 							log.InfoFormat("{0} - Balance response = {1}, Mass = {2}", Name,
                                             received.Replace("\r", "<cr>").Replace("\n", "<lf>"), mass);
@@ -231,7 +231,7 @@ namespace TBF.Rig.MettlerToledo.Standard
         /// </summary>
         /// <param name="units"></param>
         /// <returns>SetUnitsOp instance reference casted to IOperaton</returns>
-        public IOperation SetUnitsOp(Config.Unit units)
+        public IOperation SetUnitsOp(Common.Unit units)
         {
             return new SetUnitsOp(this, units);
         }
diff --git a/TBF/Rig/MettlerToledo/Standard/SetUnitsOp.cs b/TBF/Rig/MettlerToledo/Standard/SetUnitsOp.cs
index 87828111a..c624e951f 100644
--- a/TBF/Rig/MettlerToledo/Standard/SetUnitsOp.cs
+++ b/TBF/Rig/MettlerToledo/Standard/SetUnitsOp.cs
@@ -16,7 +16,7 @@ namespace TBF.Rig.MettlerToledo.Standard
 
 		/// Set by the constructor
 		BalanceDev scale;
-		Config.Unit units;
+		Common.Unit units;
         bool activityStarted;
 
 		/// <summary>
@@ -24,7 +24,7 @@ namespace TBF.Rig.MettlerToledo.Standard
 		/// </summary>
 		/// <param name="scale">Balance device instance</param>
 		/// <param name="result">Reference to the serialNumber</param>
-		public SetUnitsOp(BalanceDev scale, Config.Unit units)
+		public SetUnitsOp(BalanceDev scale, Common.Unit units)
         {
 			if (scale == null) throw new ArgumentNullException("balanceDev");
 			this.scale = scale;
diff --git a/TBF/Rig/Modbus/Easytherm/EasythermCfg.cs b/TBF/Rig/Modbus/Easytherm/EasythermCfg.cs
index b2ea79f78..2d9ed16da 100644
--- a/TBF/Rig/Modbus/Easytherm/EasythermCfg.cs
+++ b/TBF/Rig/Modbus/Easytherm/EasythermCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2017 Sensus Metering Systems
 ///
-using System;
 using System.Collections.Generic;
 using System.Xml.Serialization;
-using Config.Entities;
+using Common;
 using TBF.Rig.Generic;
 
 namespace TBF.Rig.Modbus.Easytherm
diff --git a/TBF/Rig/Modbus/Novus/NovusCfg.cs b/TBF/Rig/Modbus/Novus/NovusCfg.cs
index 869a5339a..7da590ef6 100644
--- a/TBF/Rig/Modbus/Novus/NovusCfg.cs
+++ b/TBF/Rig/Modbus/Novus/NovusCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2021 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
 using System.Xml.Serialization;
-using Config.Entities;
+using Common;
 using TBF.Rig.Generic;
 
 namespace TBF.Rig.Modbus.Novus
diff --git a/TBF/Rig/Modbus/PressureMeter/Meret/PressureMeter.cs b/TBF/Rig/Modbus/PressureMeter/Meret/PressureMeter.cs
index e46d5a34d..ffdd4a14b 100644
--- a/TBF/Rig/Modbus/PressureMeter/Meret/PressureMeter.cs
+++ b/TBF/Rig/Modbus/PressureMeter/Meret/PressureMeter.cs
@@ -47,8 +47,8 @@ namespace TBF.Rig.Modbus.PressureMeter.Meret
 		/// <returns>Pressure in mBar</returns>
 		public float ReadPressure()
 		{
-            double rawPressure = Config.Units.ConvertFrom(Config.Unit.kPa, receivedPressure);
-            double correctedPressure = Config.Formulas.CorrectedValue(rawPressure, Corrections);
+            double rawPressure = Units.ConvertFrom(Unit.kPa, receivedPressure);
+            double correctedPressure = Config.Entities.MeasurementCorrection.CorrectedValue(rawPressure, Corrections);
             return (float)correctedPressure;
 		}
 
diff --git a/TBF/Rig/Modbus/UltrasoundLevelMeter/LevelMeterCfg.cs b/TBF/Rig/Modbus/UltrasoundLevelMeter/LevelMeterCfg.cs
index e7b2388f7..9ea08ad97 100644
--- a/TBF/Rig/Modbus/UltrasoundLevelMeter/LevelMeterCfg.cs
+++ b/TBF/Rig/Modbus/UltrasoundLevelMeter/LevelMeterCfg.cs
@@ -11,7 +11,7 @@ using TBF.Rig.Generic;
 
 namespace TBF.Rig.Modbus.UltrasoundLevelMeter
 {
-    public class LevelMeterCfg : ComponentCfgBase, Generic.IChildComponentCfg, Config.Entities.IParamsProvider
+    public class LevelMeterCfg : ComponentCfgBase, Generic.IChildComponentCfg, IParamsProvider
 	{
 		public static XmlSerializer Serializer = XmlSerializer.FromTypes(new[] { typeof(LevelMeterCfg) })[0];
 		public override XmlSerializer GetSerializer() { return Serializer; }
@@ -131,7 +131,7 @@ namespace TBF.Rig.Modbus.UltrasoundLevelMeter
         }
 
 
-        public Config.Entities.IParamsProvider Clone()
+        public IParamsProvider Clone()
         {
             LevelMeterCfg pars = new LevelMeterCfg();
             CopyContentTo(pars);
diff --git a/TBF/Rig/Modbus/WaterAnalyzer/AnalyzerCfg.cs b/TBF/Rig/Modbus/WaterAnalyzer/AnalyzerCfg.cs
index 8e286517c..29e2ac4f5 100644
--- a/TBF/Rig/Modbus/WaterAnalyzer/AnalyzerCfg.cs
+++ b/TBF/Rig/Modbus/WaterAnalyzer/AnalyzerCfg.cs
@@ -11,7 +11,7 @@ using TBF.Rig.Generic;
 
 namespace TBF.Rig.Modbus.WaterAnalyzer
 {
-    public class AnalyzerCfg : ComponentCfgBase, Generic.IChildComponentCfg, Config.Entities.IParamsProvider
+    public class AnalyzerCfg : ComponentCfgBase, Generic.IChildComponentCfg, IParamsProvider
 	{
 		public static XmlSerializer Serializer = XmlSerializer.FromTypes(new[] { typeof(AnalyzerCfg) })[0];
 		public override XmlSerializer GetSerializer() { return Serializer; }
@@ -132,7 +132,7 @@ namespace TBF.Rig.Modbus.WaterAnalyzer
         }
 
 
-        public Config.Entities.IParamsProvider Clone()
+        public IParamsProvider Clone()
         {
             AnalyzerCfg pars = new AnalyzerCfg();
             CopyContentTo(pars);
diff --git a/TBF/Rig/Modbus/WaterAnalyzer2/AnalyzerCfg.cs b/TBF/Rig/Modbus/WaterAnalyzer2/AnalyzerCfg.cs
index 07e19c2eb..57a3f0bea 100644
--- a/TBF/Rig/Modbus/WaterAnalyzer2/AnalyzerCfg.cs
+++ b/TBF/Rig/Modbus/WaterAnalyzer2/AnalyzerCfg.cs
@@ -11,7 +11,7 @@ using TBF.Rig.Generic;
 
 namespace TBF.Rig.Modbus.WaterAnalyzer2
 {
-    public class AnalyzerCfg : ComponentCfgBase, Generic.IChildComponentCfg, Config.Entities.IParamsProvider
+    public class AnalyzerCfg : ComponentCfgBase, Generic.IChildComponentCfg, IParamsProvider
 	{
 		public static XmlSerializer Serializer = XmlSerializer.FromTypes(new[] { typeof(AnalyzerCfg) })[0];
 		public override XmlSerializer GetSerializer() { return Serializer; }
@@ -155,7 +155,7 @@ namespace TBF.Rig.Modbus.WaterAnalyzer2
         }
 
 
-        public Config.Entities.IParamsProvider Clone()
+        public IParamsProvider Clone()
         {
             AnalyzerCfg pars = new AnalyzerCfg();
             CopyContentTo(pars);
diff --git a/TBF/Rig/Output/DB/SensusOracle/Database.cs b/TBF/Rig/Output/DB/SensusOracle/Database.cs
index 0211daed5..c4ecacce0 100644
--- a/TBF/Rig/Output/DB/SensusOracle/Database.cs
+++ b/TBF/Rig/Output/DB/SensusOracle/Database.cs
@@ -245,7 +245,7 @@ namespace TBF.Rig.Output.DB.SensusOracle
             while (dr.Read())
             {
                 int pruefungsNr = dr.GetInt32(0);
-                double flow = Config.Units.ConvertFrom(Unit.lph, dr.GetDouble(1));
+                double flow = Common.Units.ConvertFrom(Unit.lph, dr.GetDouble(1));
                 int testTime = dr.GetInt32(2);
                 double errLimHi = dr.GetDouble(3);
                 double errLimLo = dr.GetDouble(4);
diff --git a/TBF/Rig/Output/EventTriggers/Iperl/TriggerCfg.cs b/TBF/Rig/Output/EventTriggers/Iperl/TriggerCfg.cs
index 0b55d96ca..a1dd23b59 100644
--- a/TBF/Rig/Output/EventTriggers/Iperl/TriggerCfg.cs
+++ b/TBF/Rig/Output/EventTriggers/Iperl/TriggerCfg.cs
@@ -14,7 +14,7 @@ namespace TBF.Rig.Output.EventTriggers.Iperl
     /// <summary>
     /// Serializable configuration of Output.EventTriggers.Standard component.
     /// </summary>
-    public class TriggerCfg : ComponentCfgBase, Generic.IComponentCfg, Config.Entities.IParamsProvider
+    public class TriggerCfg : ComponentCfgBase, Generic.IComponentCfg, IParamsProvider
 	{
 		public static XmlSerializer Serializer = XmlSerializer.FromTypes(new[] { typeof(TriggerCfg) })[0];
 		public override XmlSerializer GetSerializer() { return Serializer; }
@@ -156,7 +156,7 @@ namespace TBF.Rig.Output.EventTriggers.Iperl
             prms.PrintCaption = this.PrintCaption;
         }
 
-        public Config.Entities.IParamsProvider Clone()
+        public IParamsProvider Clone()
         {
             TriggerCfg pars = new TriggerCfg();
             CopyContentTo(pars);
diff --git a/TBF/Rig/Output/EventTriggers/Standard/TriggerCfg.cs b/TBF/Rig/Output/EventTriggers/Standard/TriggerCfg.cs
index 6e3f6b809..da3ec0c37 100644
--- a/TBF/Rig/Output/EventTriggers/Standard/TriggerCfg.cs
+++ b/TBF/Rig/Output/EventTriggers/Standard/TriggerCfg.cs
@@ -14,7 +14,7 @@ namespace TBF.Rig.Output.EventTriggers.Standard
     /// <summary>
     /// Serializable configuration of Output.EventTriggers.Standard component.
     /// </summary>
-    public class TriggerCfg : ComponentCfgBase, Generic.IComponentCfg, Config.Entities.IParamsProvider
+    public class TriggerCfg : ComponentCfgBase, Generic.IComponentCfg, IParamsProvider
 	{
 		public static XmlSerializer Serializer = XmlSerializer.FromTypes(new[] { typeof(TriggerCfg) })[0];
 		public override XmlSerializer GetSerializer() { return Serializer; }
@@ -403,7 +403,7 @@ namespace TBF.Rig.Output.EventTriggers.Standard
             prms.E36 = this.E36;                                    /// 34 or 37
         }
 
-        public Config.Entities.IParamsProvider Clone()
+        public IParamsProvider Clone()
         {
             TriggerCfg pars = new TriggerCfg();
             CopyContentTo(pars);
diff --git a/TBF/Rig/Output/FileWriters/IperlLogger/Writer.cs b/TBF/Rig/Output/FileWriters/IperlLogger/Writer.cs
index 5fb80fcc7..3dae427df 100644
--- a/TBF/Rig/Output/FileWriters/IperlLogger/Writer.cs
+++ b/TBF/Rig/Output/FileWriters/IperlLogger/Writer.cs
@@ -511,7 +511,7 @@ namespace TBF.Rig.Output.FileWriters.IperlLogger
 
 		void WriteOneToDisk(TextWriter logger, string id, Results.Entities.TestRslt tr)
 		{
-            logger.WriteLine(string.Format("Prüfvolumen{0}={1}", id, Config.Units.ConvertTo(Unit.l, tr.TestData.TargetVolume).ToString(Program.AltCulture)));
+            logger.WriteLine(string.Format("Prüfvolumen{0}={1}", id, Common.Units.ConvertTo(Unit.l, tr.TestData.TargetVolume).ToString(Program.AltCulture)));
 			logger.WriteLine(string.Format("Prüfmasse{0}={1}", id, 0));							/// 3,72610
 			logger.WriteLine(string.Format("Temp1_P{0}={1}", id, 0));							/// 20,0
 			logger.WriteLine(string.Format("Temp2_P{0}={1}", id, 0));							/// 20,0
@@ -521,8 +521,8 @@ namespace TBF.Rig.Output.FileWriters.IperlLogger
 			logger.WriteLine(string.Format("Temp6_P{0}={1}", id, 0));			    			/// 20,0
 			logger.WriteLine(string.Format("Temp7_P{0}={1}", id, 0));				    		/// 0,0
 			logger.WriteLine(string.Format("Temp8_P{0}={1}", id, 0));					    	/// 0,0
-			logger.WriteLine(string.Format("Druck1_P{0}={1}", id, Config.Units.ConvertTo(Unit.bar, tr.PressUpMean).ToString(Program.AltCulture)));
-			logger.WriteLine(string.Format("Druck2_P{0}={1}", id, Config.Units.ConvertTo(Unit.bar, tr.PressDownMean).ToString(Program.AltCulture)));
+			logger.WriteLine(string.Format("Druck1_P{0}={1}", id, Common.Units.ConvertTo(Unit.bar, tr.PressUpMean).ToString(Program.AltCulture)));
+			logger.WriteLine(string.Format("Druck2_P{0}={1}", id, Common.Units.ConvertTo(Unit.bar, tr.PressDownMean).ToString(Program.AltCulture)));
 			logger.WriteLine(string.Format("K-Faktor{0}={1}", id, 0));							/// 0,99820080
 			logger.WriteLine(string.Format("Q_Waage{0}={1}", id, 0));						    /// 26,89887
 			logger.WriteLine(string.Format("Q_Vergleich{0}={1}", id, 0));						/// 26,83427
@@ -534,8 +534,8 @@ namespace TBF.Rig.Output.FileWriters.IperlLogger
 			logger.WriteLine(string.Format("VZ_Nummer{0}={1}", id, 0));							/// 3
 			logger.WriteLine(string.Format("Anfangsgewicht{0}={1}", id, 0));					/// 4,66535
 			logger.WriteLine(string.Format("Endgewicht{0}={1}", id, 0));						/// 8,39145
-            logger.WriteLine(string.Format("MinDurchfluss{0}={1}", id, Config.Units.ConvertTo(Unit.lph, tr.FlowMin).ToString(Program.AltCulture)));
-            logger.WriteLine(string.Format("MaxDurchfluss{0}={1}", id, Config.Units.ConvertTo(Unit.lph, tr.FlowMax).ToString(Program.AltCulture)));
+            logger.WriteLine(string.Format("MinDurchfluss{0}={1}", id, Common.Units.ConvertTo(Unit.lph, tr.FlowMin).ToString(Program.AltCulture)));
+            logger.WriteLine(string.Format("MaxDurchfluss{0}={1}", id, Common.Units.ConvertTo(Unit.lph, tr.FlowMax).ToString(Program.AltCulture)));
 			logger.WriteLine(string.Format("Q_Einstellzeit{0}={1}", id, 0));					/// 4,17
 			logger.WriteLine(string.Format("Pumpennummer{0}={1}", id, 0));						/// 3
 			logger.WriteLine(string.Format("Drehzahl{0}={1}", id, 0));							/// 1743
diff --git a/TBF/Rig/Output/FileWriters/IperlLogger/WriterCfg.cs b/TBF/Rig/Output/FileWriters/IperlLogger/WriterCfg.cs
index f752f1d50..0a0579b96 100644
--- a/TBF/Rig/Output/FileWriters/IperlLogger/WriterCfg.cs
+++ b/TBF/Rig/Output/FileWriters/IperlLogger/WriterCfg.cs
@@ -11,7 +11,7 @@ using TBF.Resources;
 
 namespace TBF.Rig.Output.FileWriters.IperlLogger
 {
-    public class WriterCfg : ComponentCfgBase, Generic.IComponentCfg, Config.Entities.IParamsProvider
+    public class WriterCfg : ComponentCfgBase, Generic.IComponentCfg, IParamsProvider
 	{
 		public static XmlSerializer Serializer = XmlSerializer.FromTypes(new[] { typeof(WriterCfg) })[0];
 		public override XmlSerializer GetSerializer() { return Serializer; }
@@ -139,7 +139,7 @@ namespace TBF.Rig.Output.FileWriters.IperlLogger
             prms.DayFolders = this.DayFolders;
         }
 
-        public Config.Entities.IParamsProvider Clone()
+        public IParamsProvider Clone()
         {
             WriterCfg pars = new WriterCfg();
             CopyContentTo(pars);
diff --git a/TBF/Rig/Output/FlexFlow/FlexFlowCfg.cs b/TBF/Rig/Output/FlexFlow/FlexFlowCfg.cs
index 99edea2f8..7f830451e 100644
--- a/TBF/Rig/Output/FlexFlow/FlexFlowCfg.cs
+++ b/TBF/Rig/Output/FlexFlow/FlexFlowCfg.cs
@@ -184,7 +184,7 @@ namespace TBF.Rig.Output.FlexFlow
             prms.SendUserId = this.SendUserId;
         }
 
-        public Config.Entities.IParamsProvider Clone()
+        public IParamsProvider Clone()
         {
             FlexFlowCfg pars = new FlexFlowCfg();
             CopyContentTo(pars);
diff --git a/TBF/Rig/ProcedureParamsBase.cs b/TBF/Rig/ProcedureParamsBase.cs
index 3209554ba..7109e4336 100644
--- a/TBF/Rig/ProcedureParamsBase.cs
+++ b/TBF/Rig/ProcedureParamsBase.cs
@@ -6,6 +6,7 @@ using System.Collections.Generic;
 using System.IO;
 using System.Text;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 
 namespace TBF.Rig
diff --git a/TBF/Rig/RegisterReaders/DataStream/MefImport/MefImportCfg.cs b/TBF/Rig/RegisterReaders/DataStream/MefImport/MefImportCfg.cs
index a6581aa14..7da8c01f4 100644
--- a/TBF/Rig/RegisterReaders/DataStream/MefImport/MefImportCfg.cs
+++ b/TBF/Rig/RegisterReaders/DataStream/MefImport/MefImportCfg.cs
@@ -13,7 +13,7 @@ namespace TBF.Rig.RegisterReaders.DataStream.MefImport
 	/// <summary>
 	/// Holds information identifying the test bench - serializable configuration.
 	/// </summary>
-	public class MefImportCfg : ComponentCfgBase, Generic.IComponentCfg, Config.Entities.IParamsProvider
+	public class MefImportCfg : ComponentCfgBase, Generic.IComponentCfg, IParamsProvider
 	{
 		public static XmlSerializer Serializer = XmlSerializer.FromTypes(new[] { typeof(MefImportCfg) })[0];
         public override XmlSerializer GetSerializer() { return Serializer; }
@@ -108,7 +108,7 @@ namespace TBF.Rig.RegisterReaders.DataStream.MefImport
             prms.CatalogDir = this.CatalogDir;
         }
 
-        public Config.Entities.IParamsProvider Clone()
+        public IParamsProvider Clone()
         {
             MefImportCfg pars = new MefImportCfg();
             CopyContentTo(pars);
diff --git a/TBF/Rig/RegisterReaders/DataStream/Reader/ReaderCfg.cs b/TBF/Rig/RegisterReaders/DataStream/Reader/ReaderCfg.cs
index 6e7282962..bfdf6476b 100644
--- a/TBF/Rig/RegisterReaders/DataStream/Reader/ReaderCfg.cs
+++ b/TBF/Rig/RegisterReaders/DataStream/Reader/ReaderCfg.cs
@@ -13,7 +13,7 @@ namespace TBF.Rig.RegisterReaders.DataStream.Reader
 	/// <summary>
 	/// Holds information identifying the test bench - serializable configuration.
 	/// </summary>
-    public class ReaderCfg : ComponentCfgBase, Generic.IChildComponentCfg, Config.Entities.IParamsProvider
+    public class ReaderCfg : ComponentCfgBase, Generic.IChildComponentCfg, IParamsProvider
 	{
 		public static XmlSerializer Serializer = XmlSerializer.FromTypes(new[] { typeof(ReaderCfg) })[0];
         public override XmlSerializer GetSerializer() { return Serializer; }
@@ -118,7 +118,7 @@ namespace TBF.Rig.RegisterReaders.DataStream.Reader
             prms.Position = this.Position;
         }
 
-        public Config.Entities.IParamsProvider Clone()
+        public IParamsProvider Clone()
         {
             ReaderCfg pars = new ReaderCfg();
             CopyContentTo(pars);
diff --git a/TBF/Rig/RegisterReaders/KPackE/Radio/Radio.cs b/TBF/Rig/RegisterReaders/KPackE/Radio/Radio.cs
index 4238a696f..18322e0bd 100644
--- a/TBF/Rig/RegisterReaders/KPackE/Radio/Radio.cs
+++ b/TBF/Rig/RegisterReaders/KPackE/Radio/Radio.cs
@@ -168,7 +168,7 @@ namespace TBF.Rig.RegisterReaders.KPackE.Radio
                 for (int offset = 0; offset <= (data.Count - MinRcvdTlgrmLen); offset++)
                 {
                     if (DataFitFrame(data, offset, KPackETelegramFrame) &&
-                        (data[offset + 14] == Telegram.ClaculateTelegramChecksum(SubArray(data, offset + 2, 12))))
+                        (data[offset + 14] == Telegram.CalculateTelegramChecksum(SubArray(data, offset + 2, 12))))
                     {
                         /// Read the telegram
                         KPackE_Type type = (KPackE_Type)((data[offset + 4] >> 5) & 0x07);
diff --git a/TBF/Rig/RegisterReaders/KPackE/RegisterReader/RegisterReaderCfg.cs b/TBF/Rig/RegisterReaders/KPackE/RegisterReader/RegisterReaderCfg.cs
index 151f8a9de..4c2d0d11b 100644
--- a/TBF/Rig/RegisterReaders/KPackE/RegisterReader/RegisterReaderCfg.cs
+++ b/TBF/Rig/RegisterReaders/KPackE/RegisterReader/RegisterReaderCfg.cs
@@ -1,11 +1,9 @@
 ///
 /// Copyright (c) 2018 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
-using Config.Entities;
+using Common;
 using TBF.Rig.Generic;
 
 namespace TBF.Rig.RegisterReaders.KPackE.RegisterReader
diff --git a/TBF/Rig/RegisterReaders/PulsesFromEldeCB/RegisterReaderCfg.cs b/TBF/Rig/RegisterReaders/PulsesFromEldeCB/RegisterReaderCfg.cs
index 548ed671d..044033022 100644
--- a/TBF/Rig/RegisterReaders/PulsesFromEldeCB/RegisterReaderCfg.cs
+++ b/TBF/Rig/RegisterReaders/PulsesFromEldeCB/RegisterReaderCfg.cs
@@ -3,7 +3,7 @@
 ///
 using System.Collections.Generic;
 using System.Xml.Serialization;
-using Config.Entities;
+using Common;
 using TBF.Rig.Generic;
 
 namespace TBF.Rig.RegisterReaders.PulsesFromEldeCB
diff --git a/TBF/Rig/RegisterReaders/SerialStream/FrameFormat.cs b/TBF/Rig/RegisterReaders/SerialStream/FrameFormat.cs
index bea583b76..ed500ad1d 100644
--- a/TBF/Rig/RegisterReaders/SerialStream/FrameFormat.cs
+++ b/TBF/Rig/RegisterReaders/SerialStream/FrameFormat.cs
@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
+using Common;
 
 namespace TBF.Rig.RegisterReaders.SerialStream
 {
@@ -10,13 +11,13 @@ namespace TBF.Rig.RegisterReaders.SerialStream
         public readonly int FrameLength;                /// Frame length in characters/bytes, 0 = unknown
         public readonly double FrameFrequency;          /// Number of frames per second (Hz)
 
-        public readonly Config.Unit VolumeUnits;
+        public readonly Unit VolumeUnits;
         public readonly double VolumeScaleFactor;       /// Volume in VolumeInits = volmeRaw / VolumeScaleFactor
         public readonly int VolumeFieldStart;			/// Start of the volume field: 0-based index of the first character, -1 = no volume field in the frame
         public readonly int VolumeFieldEnd;				/// End of the volume field: 0-based index of the last character
         public readonly FieldFormat VolumeFieldFormat;	/// Hexadecimal or Decimal
 
-        public readonly Config.Unit TimeUnits;
+        public readonly Unit TimeUnits;
         public readonly double TimeScaleFactor;         /// Time in TimeUnits = timeRaw / TimeScaleFactor
         public readonly int TimeFieldStart;				/// Start of the time field: 0-based index of the first character, -1 = no time field in the frame
         public readonly int TimeFieldEnd;				/// End of the time field: 0-based index of the last character
@@ -38,9 +39,9 @@ namespace TBF.Rig.RegisterReaders.SerialStream
         public readonly long RawTimeIncrementPerFrame;
 
         public FrameFormat(int frameLength, double frameFrequency,
-                           Config.Unit volumeUnits, double volumeScaleFactor,
+                           Unit volumeUnits, double volumeScaleFactor,
                            int volumeFieldStart, int volumeFieldEnd, FieldFormat volumeFieldFormat,
-                           Config.Unit timeUnits, double timeScaleFactor,
+                           Unit timeUnits, double timeScaleFactor,
                            int timeFieldStart, int timeFieldEnd, FieldFormat timeFieldFormat)
         {
             FrameLength = frameLength;
diff --git a/TBF/Rig/RegisterReaders/SerialStream/ProcParams.cs b/TBF/Rig/RegisterReaders/SerialStream/ProcParams.cs
index 214bf0094..89e88135a 100644
--- a/TBF/Rig/RegisterReaders/SerialStream/ProcParams.cs
+++ b/TBF/Rig/RegisterReaders/SerialStream/ProcParams.cs
@@ -20,13 +20,13 @@ namespace TBF.Rig.RegisterReaders.SerialStream
         public int FrameLength;                 /// Frame length in characters/bytes, 0 = unknown
         public double FrameFrequency;           /// Number of frames per second, 0 = unknown
 
-        public Config.Unit VolumeUnits;
+        public Common.Unit VolumeUnits;
         public double VolumeScaleFactor;        /// Volume = 
 		public int VolumeFieldStart;			/// Start of the volume field: 0-based index of the first character, -1 = no volume field in the frame
         public int VolumeFieldEnd;				/// End of the volume field: 0-based index of the last character
         public FieldFormat VolumeFieldFormat;	/// Hexadecimal or Decimal
 
-        public Config.Unit TimeUnits;
+        public Common.Unit TimeUnits;
         public double TimeScaleFactor;          /// Time = 
         public int TimeFieldStart;				/// Start of the time field: 0-based index of the first character, -1 = no time field in the frame
         public int TimeFieldEnd;				/// End of the time field: 0-based index of the last character
@@ -40,13 +40,13 @@ namespace TBF.Rig.RegisterReaders.SerialStream
             FrameLength = 42;
             FrameFrequency = 8;
             
-            VolumeUnits = Config.Unit.l;
+            VolumeUnits = Common.Unit.l;
             VolumeScaleFactor = 16000;      
             VolumeFieldStart = 17;
             VolumeFieldEnd = 22;
             VolumeFieldFormat = FieldFormat.HexadecimalWindow;
 
-            TimeUnits = Config.Unit.s;
+            TimeUnits = Common.Unit.s;
             TimeScaleFactor = 8192;
             TimeFieldStart = 29;
             TimeFieldEnd = 36;
@@ -112,9 +112,9 @@ namespace TBF.Rig.RegisterReaders.SerialStream
                 case 2: FrameFrequency = Utils.ParseUDouble(strValue); return CfgUpdateFlags.None;
 
                 case 3:
-                    for (Config.Unit u = 0; u < Config.Unit.Count; u++)
+                    for (Unit u = 0; u < Unit.Count; u++)
                     {
-                        if (Config.Units.IsQuantity(u, Config.Quantity.Volume) && u.ToDescription().Equals(strValue))
+                        if (Units.IsQuantity(u, Quantity.Volume) && u.ToDescription().Equals(strValue))
                         {
                             VolumeUnits = u;
                             return CfgUpdateFlags.None;
@@ -132,9 +132,9 @@ namespace TBF.Rig.RegisterReaders.SerialStream
                     break;
 
                 case 8:
-                    for (Config.Unit u = 0; u < Config.Unit.Count; u++)
+                    for (Unit u = 0; u < Unit.Count; u++)
                     {
-                        if (Config.Units.IsQuantity(u, Config.Quantity.Time) && u.ToDescription().Equals(strValue))
+                        if (Units.IsQuantity(u, Quantity.Time) && u.ToDescription().Equals(strValue))
                         {
                             TimeUnits = u;
                             return CfgUpdateFlags.None;
@@ -180,9 +180,9 @@ namespace TBF.Rig.RegisterReaders.SerialStream
                     break;
 
                 case 3:
-                    for (Config.Unit u = 0; u < Config.Unit.Count; u++)
+                    for (Unit u = 0; u < Unit.Count; u++)
                     {
-                        if (Config.Units.IsQuantity(u, Config.Quantity.Volume) && u.ToDescription().Equals(strValue))
+                        if (Units.IsQuantity(u, Quantity.Volume) && u.ToDescription().Equals(strValue))
                         {
                             return true;
                         }
@@ -199,9 +199,9 @@ namespace TBF.Rig.RegisterReaders.SerialStream
                     break;
 
                 case 8:
-                    for (Config.Unit u = 0; u < Config.Unit.Count; u++)
+                    for (Unit u = 0; u < Unit.Count; u++)
                     {
-                        if (Config.Units.IsQuantity(u, Config.Quantity.Time) && u.ToDescription().Equals(strValue))
+                        if (Units.IsQuantity(u, Quantity.Time) && u.ToDescription().Equals(strValue))
                         {
                             return true;
                         }
diff --git a/TBF/Rig/RegisterReaders/SerialStream/SerialStream.cs b/TBF/Rig/RegisterReaders/SerialStream/SerialStream.cs
index 49d99c6b0..95b73d217 100644
--- a/TBF/Rig/RegisterReaders/SerialStream/SerialStream.cs
+++ b/TBF/Rig/RegisterReaders/SerialStream/SerialStream.cs
@@ -44,13 +44,13 @@ namespace TBF.Rig.RegisterReaders.SerialStream
         public int FrameLength       { get { return (myCfg.ProcParams != null) ? myCfg.ProcParams.FrameLength : 0; } }
         public double FrameFrequency { get { return (myCfg.ProcParams != null) ? myCfg.ProcParams.FrameFrequency : 0; } }
 
-        public Config.Unit VolumeUnits       { get { return (myCfg.ProcParams != null) ? myCfg.ProcParams.VolumeUnits : Config.Unit.l; } }
+        public Common.Unit VolumeUnits       { get { return (myCfg.ProcParams != null) ? myCfg.ProcParams.VolumeUnits : Common.Unit.l; } }
         public double VolumeScaleFactor      { get { return (myCfg.ProcParams != null) ? myCfg.ProcParams.VolumeScaleFactor : 1; } }
         public int VolumeFieldStart          { get { return (myCfg.ProcParams != null) ? myCfg.ProcParams.VolumeFieldStart : 0; } }
         public int VolumeFieldEnd            { get { return (myCfg.ProcParams != null) ? myCfg.ProcParams.VolumeFieldEnd : 0; } }
         public FieldFormat VolumeFieldFormat { get { return (myCfg.ProcParams != null) ? myCfg.ProcParams.VolumeFieldFormat : FieldFormat.None; } }
 
-        public Config.Unit TimeUnits       { get { return (myCfg.ProcParams != null) ? myCfg.ProcParams.TimeUnits : Config.Unit.s; } }
+        public Common.Unit TimeUnits       { get { return (myCfg.ProcParams != null) ? myCfg.ProcParams.TimeUnits : Common.Unit.s; } }
         public double TimeScaleFactor      { get { return (myCfg.ProcParams != null) ? myCfg.ProcParams.TimeScaleFactor : 1; } }
         public int TimeFieldStart          { get { return (myCfg.ProcParams != null) ? myCfg.ProcParams.TimeFieldStart : 0; } }
         public int TimeFieldEnd            { get { return (myCfg.ProcParams != null) ? myCfg.ProcParams.TimeFieldEnd : 0; } }
@@ -633,11 +633,11 @@ namespace TBF.Rig.RegisterReaders.SerialStream
         public event EventHandler<FrameReceivedEventArgs> FrameReceivedHandler;
 
 
-        public static double UnitVolume(Config.Unit units, double scaleFactor)
+        public static double UnitVolume(Common.Unit units, double scaleFactor)
         {
-            if (Config.Units.IsQuantity(units, Config.Quantity.Volume))
+            if (Common.Units.IsQuantity(units, Common.Quantity.Volume))
             {
-                return Config.Units.ConvertFrom(units, 1.0) * scaleFactor;
+                return Common.Units.ConvertFrom(units, 1.0) * scaleFactor;
             }
             else
             {
diff --git a/TBF/Rig/RegisterReaders/SerialStream/SerialStreamCfg.cs b/TBF/Rig/RegisterReaders/SerialStream/SerialStreamCfg.cs
index 2fdbf8a11..22dc02da0 100644
--- a/TBF/Rig/RegisterReaders/SerialStream/SerialStreamCfg.cs
+++ b/TBF/Rig/RegisterReaders/SerialStream/SerialStreamCfg.cs
@@ -1,11 +1,10 @@
 ///
 /// Copyright (c) 2018 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
 using System.IO.Ports;
 using System.Xml.Serialization;
-using Config.Entities;
+using Common;
 using TBF.Rig.Generic;
 
 namespace TBF.Rig.RegisterReaders.SerialStream
diff --git a/TBF/Rig/Sequences/SequenceBase.cs b/TBF/Rig/Sequences/SequenceBase.cs
index 298879eaa..d1a797dbf 100644
--- a/TBF/Rig/Sequences/SequenceBase.cs
+++ b/TBF/Rig/Sequences/SequenceBase.cs
@@ -1582,9 +1582,9 @@ namespace TBF.Rig.Sequences
             tstRslt.TestTime = tstRslt.TargetTime();
             tstRslt.PulsesMaster = (outPath.FlowMeter.LtrPerPulse > 1E-6) ? (1.0075 * tstRslt.TargetVolume() / outPath.FlowMeter.LtrPerPulse) : 1;
             tstRslt.MassStartRaw = 0;
-            tstRslt.MassStart = Config.Formulas.CorrectedValue(tstRslt.MassStartRaw, outPath.Scale.Corrections);
+            tstRslt.MassStart = Config.Entities.MeasurementCorrection.CorrectedValue(tstRslt.MassStartRaw, outPath.Scale.Corrections);
             tstRslt.MassEndRaw = tstRslt.TargetVolume() * Config.Formulas.RealDensity() / 1000.0f;
-            tstRslt.MassEnd = Config.Formulas.CorrectedValue(tstRslt.MassEndRaw, outPath.Scale.Corrections);
+            tstRslt.MassEnd = Config.Entities.MeasurementCorrection.CorrectedValue(tstRslt.MassEndRaw, outPath.Scale.Corrections);
             tstRslt.FlowMass = 3600.0 * (tstRslt.MassEnd - tstRslt.MassStart) / tstRslt.TestTime;
             tstRslt.FlowVolume = 3.6 * outPath.FlowMeter.LtrPerPulse * tstRslt.PulsesMaster / tstRslt.TestTime;
             tstRslt.MassOfEvapWater = 0;
@@ -1697,9 +1697,9 @@ namespace TBF.Rig.Sequences
 			tstRslt.TestTime = tstRslt.TargetTime();
             tstRslt.PulsesMaster = (outPath.FlowMeter.LtrPerPulse > 1E-6) ? (1.0075 * tstRslt.TargetVolume() / outPath.FlowMeter.LtrPerPulse) : 1;
             tstRslt.MassStartRaw = 0;
-            tstRslt.MassStart = Config.Formulas.CorrectedValue(tstRslt.MassStartRaw, outPath.Scale.Corrections);
+            tstRslt.MassStart = Config.Entities.MeasurementCorrection.CorrectedValue(tstRslt.MassStartRaw, outPath.Scale.Corrections);
             tstRslt.MassEndRaw = tstRslt.TargetVolume() * Config.Formulas.RealDensity() / 1000.0f;
-            tstRslt.MassEnd = Config.Formulas.CorrectedValue(tstRslt.MassEndRaw, outPath.Scale.Corrections);
+            tstRslt.MassEnd = Config.Entities.MeasurementCorrection.CorrectedValue(tstRslt.MassEndRaw, outPath.Scale.Corrections);
             tstRslt.FlowMass = 3600.0 * (tstRslt.MassEnd - tstRslt.MassStart) / tstRslt.TestTime;
             tstRslt.FlowVolume = 3.6 * outPath.FlowMeter.LtrPerPulse * tstRslt.PulsesMaster / tstRslt.TestTime;
             tstRslt.MassOfEvapWater = 0;
diff --git a/TBF/Rig/TestMethods/CombinedWithDetection/CombinedWithDetectionSeq.cs b/TBF/Rig/TestMethods/CombinedWithDetection/CombinedWithDetectionSeq.cs
index 9ee0a8ae4..90b949b49 100644
--- a/TBF/Rig/TestMethods/CombinedWithDetection/CombinedWithDetectionSeq.cs
+++ b/TBF/Rig/TestMethods/CombinedWithDetection/CombinedWithDetectionSeq.cs
@@ -680,9 +680,9 @@ namespace TBF.Rig.TestMethods.CombinedWithDetection
                 double massOfEvaporatedWater = tstRslt.TimeBtwnMassMsrmnts * outPath.Scale.EvaporationRate(tstRslt.TempDivMean);
                 tstRslt.PulsesMaster = Convert.ToDouble(cBrd.RefPulses);					/// Pulses of the master flow meter (test total)
 				tstRslt.MassStartRaw = StartMass.Val;
-                tstRslt.MassStart    = Config.Formulas.CorrectedValue(tstRslt.MassStartRaw, scale.Corrections);
+                tstRslt.MassStart    = Config.Entities.MeasurementCorrection.CorrectedValue(tstRslt.MassStartRaw, scale.Corrections);
 				tstRslt.MassEndRaw   = EndMass.Val;
-                tstRslt.MassEnd      = Config.Formulas.CorrectedValue(tstRslt.MassEndRaw, scale.Corrections);
+                tstRslt.MassEnd      = Config.Entities.MeasurementCorrection.CorrectedValue(tstRslt.MassEndRaw, scale.Corrections);
                 tstRslt.FlowMass     = 3600.0 * (tstRslt.MassEnd - tstRslt.MassStart + massOfEvaporatedWater) / tstRslt.TestTime;		                /// [kg/h]
                 double flow = 3.6 * LtrPerRefPulse * cBrd.RefPulses / tstRslt.TestTime;				                            /// [m3/h]
                 tstRslt.MassOfEvapWater = massOfEvaporatedWater;
diff --git a/TBF/Rig/TestMethods/CombinedWithDetection/TestMethodCfg.cs b/TBF/Rig/TestMethods/CombinedWithDetection/TestMethodCfg.cs
index edbb2cb9a..eb996ccaa 100644
--- a/TBF/Rig/TestMethods/CombinedWithDetection/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/CombinedWithDetection/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2013-2016 Sensus Metering Systems
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/DiverterTest/DiverterTestSeq.cs b/TBF/Rig/TestMethods/DiverterTest/DiverterTestSeq.cs
index ed38faf45..63aa7efd7 100644
--- a/TBF/Rig/TestMethods/DiverterTest/DiverterTestSeq.cs
+++ b/TBF/Rig/TestMethods/DiverterTest/DiverterTestSeq.cs
@@ -689,9 +689,9 @@ namespace TBF.Rig.TestMethods.DiverterTest
                 tstRslt.TimeBtwnMassMsrmnts = tMass2 - tMass1;
                 tstRslt.PulsesMaster = Convert.ToDouble(cumulativeEtPulses[0]);	    /// Pulses of the master flow meter (test total)
 				tstRslt.MassStartRaw = StartMass.Val;
-                tstRslt.MassStart    = Config.Formulas.CorrectedValue(tstRslt.MassStartRaw, scale.Corrections);
+                tstRslt.MassStart    = Config.Entities.MeasurementCorrection.CorrectedValue(tstRslt.MassStartRaw, scale.Corrections);
 				tstRslt.MassEndRaw   = EndMass.Val;
-                tstRslt.MassEnd      = Config.Formulas.CorrectedValue(tstRslt.MassEndRaw, scale.Corrections);
+                tstRslt.MassEnd      = Config.Entities.MeasurementCorrection.CorrectedValue(tstRslt.MassEndRaw, scale.Corrections);
                 tstRslt.MassOfEvapWater = (double)tstRslt.TimeBtwnMassMsrmnts * outPath.Scale.EvaporationRate(tstRslt.TempDivMean);
                 tstRslt.FlowMass     = 3600.0 * (tstRslt.MassEnd - tstRslt.MassStart + tstRslt.MassOfEvapWater) / tstRslt.TestTime;	/// [kg/h]
 				tstRslt.FlowVolume   = 3.6 * LtrPerRefPulse * tstRslt.PulsesMaster / tstRslt.TestTime;				                /// [m3/h]
diff --git a/TBF/Rig/TestMethods/DiverterTest/TestMethodCfg.cs b/TBF/Rig/TestMethods/DiverterTest/TestMethodCfg.cs
index 426cf9c1a..36ea3209a 100644
--- a/TBF/Rig/TestMethods/DiverterTest/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/DiverterTest/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2019 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/FixedStart/HeatMeters/TestMethodCfg.cs b/TBF/Rig/TestMethods/FixedStart/HeatMeters/TestMethodCfg.cs
index 1cbb2abdb..d87247274 100644
--- a/TBF/Rig/TestMethods/FixedStart/HeatMeters/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/FixedStart/HeatMeters/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2018 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/FixedStartAdvanced/FixedStartAdvancedSeq.cs b/TBF/Rig/TestMethods/FixedStartAdvanced/FixedStartAdvancedSeq.cs
index 31762810c..d9cad6260 100644
--- a/TBF/Rig/TestMethods/FixedStartAdvanced/FixedStartAdvancedSeq.cs
+++ b/TBF/Rig/TestMethods/FixedStartAdvanced/FixedStartAdvancedSeq.cs
@@ -520,8 +520,8 @@ namespace TBF.Rig.TestMethods.FixedStartAdvanced
 			while (!e.Contains(Event.PreviousStopped));
 
 
-            double massStart = Config.Formulas.CorrectedValue(StartMass.Val, scale.Corrections);
-            double massEnd = Config.Formulas.CorrectedValue(EndMass.Val, scale.Corrections);
+            double massStart = Config.Entities.MeasurementCorrection.CorrectedValue(StartMass.Val, scale.Corrections);
+            double massEnd = Config.Entities.MeasurementCorrection.CorrectedValue(EndMass.Val, scale.Corrections);
             double densityOut = Config.Formulas.WaterDensityFromTempPress((TempUpStat.Average + TempDownStat.Average) / 2,
                                                                           (PressUpStat.Average + PressDownStat.Average) / 2);
             double buoyancy = Config.Formulas.Buoyancy();
diff --git a/TBF/Rig/TestMethods/FixedStartDeferredEval/HeatMeters/TestMethodCfg.cs b/TBF/Rig/TestMethods/FixedStartDeferredEval/HeatMeters/TestMethodCfg.cs
index df1e750ac..02ec922c1 100644
--- a/TBF/Rig/TestMethods/FixedStartDeferredEval/HeatMeters/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/FixedStartDeferredEval/HeatMeters/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2019 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/FixedStartMassCollDeferredEval/FixedStartMassCollDeferredEvalSeq.cs b/TBF/Rig/TestMethods/FixedStartMassCollDeferredEval/FixedStartMassCollDeferredEvalSeq.cs
index 4c24a233e..d45f75db8 100644
--- a/TBF/Rig/TestMethods/FixedStartMassCollDeferredEval/FixedStartMassCollDeferredEvalSeq.cs
+++ b/TBF/Rig/TestMethods/FixedStartMassCollDeferredEval/FixedStartMassCollDeferredEvalSeq.cs
@@ -828,8 +828,8 @@ namespace TBF.Rig.TestMethods.FixedStartMassCollDeferredEval
             while (!e.Contains(Event.PreviousStopped));
 
 
-            double massStart = Config.Formulas.CorrectedValue(StartMass.Val, scale.Corrections);
-            double massEnd = Config.Formulas.CorrectedValue(EndMass.Val, scale.Corrections);
+            double massStart = Config.Entities.MeasurementCorrection.CorrectedValue(StartMass.Val, scale.Corrections);
+            double massEnd = Config.Entities.MeasurementCorrection.CorrectedValue(EndMass.Val, scale.Corrections);
             double densityOut = Config.Formulas.WaterDensityFromTempPress((TempUpStat.Average + TempDownStat.Average) / 2,
                                                                           (PressUpStat.Average + PressDownStat.Average) / 2);
             double buoyancy = Config.Formulas.Buoyancy();
diff --git a/TBF/Rig/TestMethods/FixedStartMassCollDeferredEval/HeatMeters/TestMethodCfg.cs b/TBF/Rig/TestMethods/FixedStartMassCollDeferredEval/HeatMeters/TestMethodCfg.cs
index 9645e0427..de1fff7cb 100644
--- a/TBF/Rig/TestMethods/FixedStartMassCollDeferredEval/HeatMeters/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/FixedStartMassCollDeferredEval/HeatMeters/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2019 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/FixedStartMassCollection/FixedStartMassCollectionSeq.cs b/TBF/Rig/TestMethods/FixedStartMassCollection/FixedStartMassCollectionSeq.cs
index 1dc3c2ced..458bed0ed 100644
--- a/TBF/Rig/TestMethods/FixedStartMassCollection/FixedStartMassCollectionSeq.cs
+++ b/TBF/Rig/TestMethods/FixedStartMassCollection/FixedStartMassCollectionSeq.cs
@@ -829,8 +829,8 @@ namespace TBF.Rig.TestMethods.FixedStartMassCollection
             while (!e.Contains(Event.PreviousStopped));
 
 
-            double massStart = Config.Formulas.CorrectedValue(StartMass.Val, scale.Corrections);
-            double massEnd = Config.Formulas.CorrectedValue(EndMass.Val, scale.Corrections);
+            double massStart = Config.Entities.MeasurementCorrection.CorrectedValue(StartMass.Val, scale.Corrections);
+            double massEnd = Config.Entities.MeasurementCorrection.CorrectedValue(EndMass.Val, scale.Corrections);
             double densityOut = Config.Formulas.WaterDensityFromTempPress((TempUpStat.Average + TempDownStat.Average) / 2,
                                                                           (PressUpStat.Average + PressDownStat.Average) / 2);
             double buoyancy = Config.Formulas.Buoyancy();
diff --git a/TBF/Rig/TestMethods/FixedStartMassCollection/HeatMeters/TestMethodCfg.cs b/TBF/Rig/TestMethods/FixedStartMassCollection/HeatMeters/TestMethodCfg.cs
index b91c61ffb..27c6ff8e3 100644
--- a/TBF/Rig/TestMethods/FixedStartMassCollection/HeatMeters/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/FixedStartMassCollection/HeatMeters/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2013-2016 Sensus Metering Systems
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/FixedStartTankCollection/Compound/TestMethodCfg.cs b/TBF/Rig/TestMethods/FixedStartTankCollection/Compound/TestMethodCfg.cs
index 8f32cc036..733d81f2a 100644
--- a/TBF/Rig/TestMethods/FixedStartTankCollection/Compound/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/FixedStartTankCollection/Compound/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2018 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/FixedStartTankCollection/Single/TestMethodCfg.cs b/TBF/Rig/TestMethods/FixedStartTankCollection/Single/TestMethodCfg.cs
index 3c19607f5..623300757 100644
--- a/TBF/Rig/TestMethods/FixedStartTankCollection/Single/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/FixedStartTankCollection/Single/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2018 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/FlyingStart/Compound/TestMethodCfg.cs b/TBF/Rig/TestMethods/FlyingStart/Compound/TestMethodCfg.cs
index 9f242d479..0ee1deaff 100644
--- a/TBF/Rig/TestMethods/FlyingStart/Compound/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/FlyingStart/Compound/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2013-2016 Sensus Metering Systems
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/FlyingStart/FlyingStartSeq.cs b/TBF/Rig/TestMethods/FlyingStart/FlyingStartSeq.cs
index 4c7a4ff7b..f2ab73d60 100644
--- a/TBF/Rig/TestMethods/FlyingStart/FlyingStartSeq.cs
+++ b/TBF/Rig/TestMethods/FlyingStart/FlyingStartSeq.cs
@@ -561,7 +561,7 @@ namespace TBF.Rig.TestMethods.FlyingStart
                             energyRslt.VolumeStart = 0;
                             energyRslt.VolumeEnd = 0;
 							energyRslt.VolumeRef = tstRslt.RefEnergy * (energyRslt.PulsesMaster / tstRslt.PulsesMaster);	                            /// [J]
-							energyRslt.VolumeMeter = energyRslt.PulsesMeter * Config.Units.ConvertFrom(Config.Unit.kWh, energyRegReader.LtrsPerPulse);	/// [J]
+							energyRslt.VolumeMeter = energyRslt.PulsesMeter * Common.Units.ConvertFrom(Common.Unit.kWh, energyRegReader.LtrsPerPulse);	/// [J]
 							energyRslt.TestTime = tstRslt.TestTime;                                         /// [s]
 
                             energyRslt.Error = Config.Formulas.ErrorFromVolumes(energyRslt.VolumeMeter, energyRslt.VolumeRef);
diff --git a/TBF/Rig/TestMethods/FlyingStart/HeatMeters/TestMethodCfg.cs b/TBF/Rig/TestMethods/FlyingStart/HeatMeters/TestMethodCfg.cs
index a17104a8b..d2fdc27b3 100644
--- a/TBF/Rig/TestMethods/FlyingStart/HeatMeters/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/FlyingStart/HeatMeters/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2013-2016 Sensus Metering Systems
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/FlyingStartFirstRepetWithMassColl/Compound/TestMethodCfg.cs b/TBF/Rig/TestMethods/FlyingStartFirstRepetWithMassColl/Compound/TestMethodCfg.cs
index be0a481a3..9cb8b511b 100644
--- a/TBF/Rig/TestMethods/FlyingStartFirstRepetWithMassColl/Compound/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/FlyingStartFirstRepetWithMassColl/Compound/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2018 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/FlyingStartFirstRepetWithMassColl/FlyingStartFirstRepetWithMassCollSeq.cs b/TBF/Rig/TestMethods/FlyingStartFirstRepetWithMassColl/FlyingStartFirstRepetWithMassCollSeq.cs
index 78aae3b5b..b79997b5c 100644
--- a/TBF/Rig/TestMethods/FlyingStartFirstRepetWithMassColl/FlyingStartFirstRepetWithMassCollSeq.cs
+++ b/TBF/Rig/TestMethods/FlyingStartFirstRepetWithMassColl/FlyingStartFirstRepetWithMassCollSeq.cs
@@ -749,9 +749,9 @@ namespace TBF.Rig.TestMethods.FlyingStartFirstRepetWithMassColl
                     tstRslt.TimeBtwnMassMsrmnts = tMass2 - tMass1;
                     tstRslt.MassOfEvapWater = tstRslt.TimeBtwnMassMsrmnts * outPath.Scale.EvaporationRate(tstRslt.TempDivMean);
                     tstRslt.MassStartRaw = StartMass.Val;
-                    tstRslt.MassStart    = Config.Formulas.CorrectedValue(tstRslt.MassStartRaw, scale.Corrections);
+                    tstRslt.MassStart    = Config.Entities.MeasurementCorrection.CorrectedValue(tstRslt.MassStartRaw, scale.Corrections);
 					tstRslt.MassEndRaw   = EndMass.Val;
-                    tstRslt.MassEnd      = Config.Formulas.CorrectedValue(tstRslt.MassEndRaw, scale.Corrections);
+                    tstRslt.MassEnd      = Config.Entities.MeasurementCorrection.CorrectedValue(tstRslt.MassEndRaw, scale.Corrections);
                     tstRslt.FlowMass     = 3600 * (tstRslt.MassEnd - tstRslt.MassStart + tstRslt.MassOfEvapWater) / tstRslt.TestTime;			                    /// [kg/h]
                     tstRslt.VolumeCTV    = 1000 * tstRslt.Batch.Buoyancy * (tstRslt.MassEnd - tstRslt.MassStart + tstRslt.MassOfEvapWater) / tstRslt.DensityLine;   /// [l] commercially true volume
                     if ((outPath.Diverter != null) && (tstRslt.TestTime > float.Epsilon))
@@ -940,7 +940,7 @@ namespace TBF.Rig.TestMethods.FlyingStartFirstRepetWithMassColl
                             energyRslt.VolumeStart = 0;
                             energyRslt.VolumeEnd = 0;
 							energyRslt.VolumeRef = tstRslt.RefEnergy * (energyRslt.PulsesMaster / tstRslt.PulsesMaster);	                            /// [J]
-							energyRslt.VolumeMeter = energyRslt.PulsesMeter * Config.Units.ConvertFrom(Config.Unit.kWh, energyRegReader.LtrsPerPulse);	/// [J]
+							energyRslt.VolumeMeter = energyRslt.PulsesMeter * Common.Units.ConvertFrom(Common.Unit.kWh, energyRegReader.LtrsPerPulse);	/// [J]
                             energyRslt.TestTime = cBrd.ImpulseTime(i + 1);                                  /// [s]
 
                             energyRslt.Error = Config.Formulas.ErrorFromVolumes(energyRslt.VolumeMeter, energyRslt.VolumeRef);
diff --git a/TBF/Rig/TestMethods/FlyingStartFirstRepetWithMassColl/HeatMeters/TestMethodCfg.cs b/TBF/Rig/TestMethods/FlyingStartFirstRepetWithMassColl/HeatMeters/TestMethodCfg.cs
index 2adc130d6..09d7c0973 100644
--- a/TBF/Rig/TestMethods/FlyingStartFirstRepetWithMassColl/HeatMeters/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/FlyingStartFirstRepetWithMassColl/HeatMeters/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2018 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/FlyingStartFirstRepetWithMassColl/Single/TestMethodCfg.cs b/TBF/Rig/TestMethods/FlyingStartFirstRepetWithMassColl/Single/TestMethodCfg.cs
index 36c707d4b..c7918a1ef 100644
--- a/TBF/Rig/TestMethods/FlyingStartFirstRepetWithMassColl/Single/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/FlyingStartFirstRepetWithMassColl/Single/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2018 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/FlyingStartMassCollComparative/Compound/TestMethodCfg.cs b/TBF/Rig/TestMethods/FlyingStartMassCollComparative/Compound/TestMethodCfg.cs
index fb22b4841..ed54bab5e 100644
--- a/TBF/Rig/TestMethods/FlyingStartMassCollComparative/Compound/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/FlyingStartMassCollComparative/Compound/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2018 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/FlyingStartMassCollComparative/FlyingStartMassCollComparativeSeq.cs b/TBF/Rig/TestMethods/FlyingStartMassCollComparative/FlyingStartMassCollComparativeSeq.cs
index 9aca4ee89..d640b4e13 100644
--- a/TBF/Rig/TestMethods/FlyingStartMassCollComparative/FlyingStartMassCollComparativeSeq.cs
+++ b/TBF/Rig/TestMethods/FlyingStartMassCollComparative/FlyingStartMassCollComparativeSeq.cs
@@ -1021,7 +1021,7 @@ namespace TBF.Rig.TestMethods.FlyingStartMassCollComparative
                             energyRslt.VolumeStart = 0;
                             energyRslt.VolumeEnd = 0;
 							energyRslt.VolumeRef = tstRslt.RefEnergy * (energyRslt.PulsesMaster / tstRslt.PulsesMaster);	                            /// [J]
-							energyRslt.VolumeMeter = energyRslt.PulsesMeter * Config.Units.ConvertFrom(Config.Unit.kWh, energyRegReader.LtrsPerPulse);	/// [J]
+							energyRslt.VolumeMeter = energyRslt.PulsesMeter * Common.Units.ConvertFrom(Common.Unit.kWh, energyRegReader.LtrsPerPulse);	/// [J]
                             energyRslt.TestTime = cBrd.ImpulseTime(i + 1);                                  /// [s]
 
                             energyRslt.Error = Config.Formulas.ErrorFromVolumes(energyRslt.VolumeMeter, energyRslt.VolumeRef);
diff --git a/TBF/Rig/TestMethods/FlyingStartMassCollComparative/HeatMeters/TestMethodCfg.cs b/TBF/Rig/TestMethods/FlyingStartMassCollComparative/HeatMeters/TestMethodCfg.cs
index 43a18eb8c..0a5cbd49e 100644
--- a/TBF/Rig/TestMethods/FlyingStartMassCollComparative/HeatMeters/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/FlyingStartMassCollComparative/HeatMeters/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2018 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/FlyingStartMassCollComparative/Single/TestMethodCfg.cs b/TBF/Rig/TestMethods/FlyingStartMassCollComparative/Single/TestMethodCfg.cs
index d553a6385..4e4017be7 100644
--- a/TBF/Rig/TestMethods/FlyingStartMassCollComparative/Single/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/FlyingStartMassCollComparative/Single/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2018 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/FlyingStartMassCollProlonged/Compound/TestMethodCfg.cs b/TBF/Rig/TestMethods/FlyingStartMassCollProlonged/Compound/TestMethodCfg.cs
index 541af287c..ef3bab883 100644
--- a/TBF/Rig/TestMethods/FlyingStartMassCollProlonged/Compound/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/FlyingStartMassCollProlonged/Compound/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2018 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/FlyingStartMassCollProlonged/FlyingStartMassCollProlongedSeq.cs b/TBF/Rig/TestMethods/FlyingStartMassCollProlonged/FlyingStartMassCollProlongedSeq.cs
index ddfe813c8..4dd4341d6 100644
--- a/TBF/Rig/TestMethods/FlyingStartMassCollProlonged/FlyingStartMassCollProlongedSeq.cs
+++ b/TBF/Rig/TestMethods/FlyingStartMassCollProlonged/FlyingStartMassCollProlongedSeq.cs
@@ -6,6 +6,7 @@ using System.Collections.Generic;
 using log4net;
 using Common;
 using Config;
+using Config.Entities;
 using TBF.Resources;
 using TBF.UiBridge;
 using TBF.Rig.GenericDevices;
@@ -809,9 +810,9 @@ namespace TBF.Rig.TestMethods.FlyingStartMassCollProlonged
                 tstRslt.TimeBtwnMassMsrmnts = tMass2 - tMass1;
                 tstRslt.MassOfEvapWater = tstRslt.TimeBtwnMassMsrmnts * outPath.Scale.EvaporationRate(tstRslt.TempDivMean);
 				tstRslt.MassStartRaw    = StartMass.Val;
-                tstRslt.MassStart       = Formulas.CorrectedValue(tstRslt.MassStartRaw, scale.Corrections);
+                tstRslt.MassStart       = MeasurementCorrection.CorrectedValue(tstRslt.MassStartRaw, scale.Corrections);
 				tstRslt.MassEndRaw      = EndMass.Val;
-                tstRslt.MassEnd         = Formulas.CorrectedValue(tstRslt.MassEndRaw, scale.Corrections);
+                tstRslt.MassEnd         = MeasurementCorrection.CorrectedValue(tstRslt.MassEndRaw, scale.Corrections);
                 tstRslt.FlowMass        = 3600 * (tstRslt.MassEnd - tstRslt.MassStart + tstRslt.MassOfEvapWater) * totalPulses / (tstRslt.TestTime * massPulses); /// [kg/h]
                 double flow             = 3.6 * LtrPerRefPulse * totalPulses / tstRslt.TestTime;				                                                  /// [m3/h]
                 tstRslt.VolumeCTV       = 1000 * tstRslt.Batch.Buoyancy * (tstRslt.MassEnd - tstRslt.MassStart + tstRslt.MassOfEvapWater) / tstRslt.DensityLine;  /// [l] commercially true volume of collected water
@@ -968,7 +969,7 @@ namespace TBF.Rig.TestMethods.FlyingStartMassCollProlonged
                             energyRslt.VolumeStart = 0;
                             energyRslt.VolumeEnd = 0;
                             energyRslt.VolumeRef = tstRslt.RefEnergy * (energyRslt.PulsesMaster / totalPulses);	                                        /// [J]
-							energyRslt.VolumeMeter = energyRslt.PulsesMeter * Config.Units.ConvertFrom(Config.Unit.kWh, energyRegReader.LtrsPerPulse);	/// [J]
+							energyRslt.VolumeMeter = energyRslt.PulsesMeter * Common.Units.ConvertFrom(Common.Unit.kWh, energyRegReader.LtrsPerPulse);	/// [J]
                             energyRslt.TestTime = cBrd.ImpulseTime(i + 1);                                         /// [s]
 
                             energyRslt.Error = Formulas.ErrorFromVolumes(energyRslt.VolumeMeter, energyRslt.VolumeRef);
diff --git a/TBF/Rig/TestMethods/FlyingStartMassCollProlonged/HeatMeters/TestMethodCfg.cs b/TBF/Rig/TestMethods/FlyingStartMassCollProlonged/HeatMeters/TestMethodCfg.cs
index 55fb3e42b..eceda8dce 100644
--- a/TBF/Rig/TestMethods/FlyingStartMassCollProlonged/HeatMeters/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/FlyingStartMassCollProlonged/HeatMeters/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2018 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/FlyingStartMassCollProlonged/Single/TestMethodCfg.cs b/TBF/Rig/TestMethods/FlyingStartMassCollProlonged/Single/TestMethodCfg.cs
index d6f454443..fc39f5045 100644
--- a/TBF/Rig/TestMethods/FlyingStartMassCollProlonged/Single/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/FlyingStartMassCollProlonged/Single/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2018 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/FlyingStartMassCollection/Compound/TestMethodCfg.cs b/TBF/Rig/TestMethods/FlyingStartMassCollection/Compound/TestMethodCfg.cs
index 951ec91af..2fdd1bb91 100644
--- a/TBF/Rig/TestMethods/FlyingStartMassCollection/Compound/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/FlyingStartMassCollection/Compound/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2013-2016 Sensus Metering Systems
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/FlyingStartMassCollection/FlyingStartMassCollectionSeq.cs b/TBF/Rig/TestMethods/FlyingStartMassCollection/FlyingStartMassCollectionSeq.cs
index 984a5781d..aba603ece 100644
--- a/TBF/Rig/TestMethods/FlyingStartMassCollection/FlyingStartMassCollectionSeq.cs
+++ b/TBF/Rig/TestMethods/FlyingStartMassCollection/FlyingStartMassCollectionSeq.cs
@@ -735,9 +735,9 @@ namespace TBF.Rig.TestMethods.FlyingStartMassCollection
                 tstRslt.TimeBtwnMassMsrmnts = tMass2 - tMass1;
                 tstRslt.PulsesMaster = Convert.ToDouble(cBrd.RefPulses);	/// Pulses of the master flow meter (test total)
 				tstRslt.MassStartRaw = StartMass.Val;
-                tstRslt.MassStart    = Config.Formulas.CorrectedValue(tstRslt.MassStartRaw, scale.Corrections);
+                tstRslt.MassStart    = Config.Entities.MeasurementCorrection.CorrectedValue(tstRslt.MassStartRaw, scale.Corrections);
 				tstRslt.MassEndRaw   = EndMass.Val;
-                tstRslt.MassEnd      = Config.Formulas.CorrectedValue(tstRslt.MassEndRaw, scale.Corrections);
+                tstRslt.MassEnd      = Config.Entities.MeasurementCorrection.CorrectedValue(tstRslt.MassEndRaw, scale.Corrections);
                 tstRslt.MassOfEvapWater = tstRslt.TimeBtwnMassMsrmnts * outPath.Scale.EvaporationRate(tstRslt.TempDivMean);
                 tstRslt.FlowMass     = 3600.0 * (tstRslt.MassEnd - tstRslt.MassStart + tstRslt.MassOfEvapWater) / tstRslt.TestTime; /// [kg/h]
                 double flow          = 3.6 * LtrPerRefPulse * tstRslt.PulsesMaster / tstRslt.TestTime;				                /// [m3/h]
@@ -895,7 +895,7 @@ namespace TBF.Rig.TestMethods.FlyingStartMassCollection
                             energyRslt.VolumeStart = 0;
                             energyRslt.VolumeEnd = 0;
 							energyRslt.VolumeRef = tstRslt.RefEnergy * (energyRslt.PulsesMaster / tstRslt.PulsesMaster);	                            /// [J]
-							energyRslt.VolumeMeter = energyRslt.PulsesMeter * Config.Units.ConvertFrom(Config.Unit.kWh, energyRegReader.LtrsPerPulse);	/// [J]
+							energyRslt.VolumeMeter = energyRslt.PulsesMeter * Common.Units.ConvertFrom(Common.Unit.kWh, energyRegReader.LtrsPerPulse);	/// [J]
                             energyRslt.TestTime = cBrd.ImpulseTime(i + 1);                                  /// [s]
 
                             energyRslt.Error = Config.Formulas.ErrorFromVolumes(energyRslt.VolumeMeter, energyRslt.VolumeRef);
diff --git a/TBF/Rig/TestMethods/FlyingStartMassCollection/HeatMeters/TestMethodCfg.cs b/TBF/Rig/TestMethods/FlyingStartMassCollection/HeatMeters/TestMethodCfg.cs
index 3dc76c1b3..153f1f1d2 100644
--- a/TBF/Rig/TestMethods/FlyingStartMassCollection/HeatMeters/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/FlyingStartMassCollection/HeatMeters/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2013-2016 Sensus Metering Systems
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/FlyingStartTankCollection/Compound/TestMethodCfg.cs b/TBF/Rig/TestMethods/FlyingStartTankCollection/Compound/TestMethodCfg.cs
index c18d03c49..94d61e8c9 100644
--- a/TBF/Rig/TestMethods/FlyingStartTankCollection/Compound/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/FlyingStartTankCollection/Compound/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2018 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/FlyingStartTankCollection/Single/TestMethodCfg.cs b/TBF/Rig/TestMethods/FlyingStartTankCollection/Single/TestMethodCfg.cs
index 6488643a7..65e1f01a3 100644
--- a/TBF/Rig/TestMethods/FlyingStartTankCollection/Single/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/FlyingStartTankCollection/Single/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2018 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/LeakTest/LeakTestSeq.cs b/TBF/Rig/TestMethods/LeakTest/LeakTestSeq.cs
index 9ac325871..ebc09bf8b 100644
--- a/TBF/Rig/TestMethods/LeakTest/LeakTestSeq.cs
+++ b/TBF/Rig/TestMethods/LeakTest/LeakTestSeq.cs
@@ -368,8 +368,8 @@ namespace TBF.Rig.TestMethods.LeakTest
                 {
                     tstRslt.MassStartRaw = StartMass.Val;
                     tstRslt.MassEndRaw   = EndMass.Val;
-                    tstRslt.MassStart    = Config.Formulas.CorrectedValue(tstRslt.MassStartRaw, scale.Corrections);
-                    tstRslt.MassEnd      = Config.Formulas.CorrectedValue(tstRslt.MassEndRaw, scale.Corrections);
+                    tstRslt.MassStart    = Config.Entities.MeasurementCorrection.CorrectedValue(tstRslt.MassStartRaw, scale.Corrections);
+                    tstRslt.MassEnd      = Config.Entities.MeasurementCorrection.CorrectedValue(tstRslt.MassEndRaw, scale.Corrections);
                 }
                 else
                 {
diff --git a/TBF/Rig/TestMethods/LeakTest/TestMethodCfg.cs b/TBF/Rig/TestMethods/LeakTest/TestMethodCfg.cs
index 9542a538c..e52eca507 100644
--- a/TBF/Rig/TestMethods/LeakTest/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/LeakTest/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2013-2016 Sensus Metering Systems
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/ManualEntry/ManualEntryForm.cs b/TBF/Rig/TestMethods/ManualEntry/ManualEntryForm.cs
index e0d92228f..56a48eb5b 100644
--- a/TBF/Rig/TestMethods/ManualEntry/ManualEntryForm.cs
+++ b/TBF/Rig/TestMethods/ManualEntry/ManualEntryForm.cs
@@ -6,6 +6,7 @@ using System.Collections.Generic;
 using System.Drawing;
 using System.Windows.Forms;
 using log4net;
+using Common;
 using Results.Entities;
 using TBF.Resources;
 
@@ -71,7 +72,7 @@ namespace TBF.Rig.TestMethods.ManualEntry
                 {
                     labels[i].Text = items[i].Caption;
                     groupBoxes[i].Visible = true;
-                    if (items[i].Quantity == Config.Quantity.Boolean)
+                    if (items[i].Quantity == Quantity.Boolean)
                     {
                         textBoxes[i].Visible = false;
                         yesRadioButtons[i].Visible = true;
diff --git a/TBF/Rig/TestMethods/PMaxTest/TestMethodCfg.cs b/TBF/Rig/TestMethods/PMaxTest/TestMethodCfg.cs
index 072709be9..afdf78740 100644
--- a/TBF/Rig/TestMethods/PMaxTest/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/PMaxTest/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2013-2016 Sensus Metering Systems
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/PulsesTest/TestMethodCfg.cs b/TBF/Rig/TestMethods/PulsesTest/TestMethodCfg.cs
index e86e5b601..560efbc93 100644
--- a/TBF/Rig/TestMethods/PulsesTest/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/PulsesTest/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2018 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 using TBF.Rig.Configs.NameOnly;
diff --git a/TBF/Rig/TestMethods/SensitivityTest/TestMethodCfg.cs b/TBF/Rig/TestMethods/SensitivityTest/TestMethodCfg.cs
index 6553f68e2..e5f862ad5 100644
--- a/TBF/Rig/TestMethods/SensitivityTest/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/SensitivityTest/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2019 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/iPerlCommunication/TestMethodCfg.cs b/TBF/Rig/TestMethods/iPerlCommunication/TestMethodCfg.cs
index d3e9aea8a..971cea8b5 100644
--- a/TBF/Rig/TestMethods/iPerlCommunication/TestMethodCfg.cs
+++ b/TBF/Rig/TestMethods/iPerlCommunication/TestMethodCfg.cs
@@ -1,10 +1,9 @@
 ///
 /// Copyright (c) 2015-2021 Sensus Slovensko a.s.
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/Rig/TestMethods/iPerlCommunication/iPerlHead/IperlHead.cs b/TBF/Rig/TestMethods/iPerlCommunication/iPerlHead/IperlHead.cs
index 9175a741c..15dc1af22 100644
--- a/TBF/Rig/TestMethods/iPerlCommunication/iPerlHead/IperlHead.cs
+++ b/TBF/Rig/TestMethods/iPerlCommunication/iPerlHead/IperlHead.cs
@@ -213,7 +213,7 @@ namespace TBF.Rig.TestMethods.iPerlCommunication.iPerlHead
         /// <returns>Calculated Q2 correction factor</returns>
         public double CalculateQ2CorrectionFactor(Results.Entities.MeterTestRslt q2adjResult, double calibTarget, double nominalFlow, int currentFactor = 0)
 		{
-            double nominalTestFlowLph = Config.Units.ConvertTo(Config.Unit.lph, nominalFlow);
+            double nominalTestFlowLph = Common.Units.ConvertTo(Common.Unit.lph, nominalFlow);
             double volumeRefShiftedToTarget = q2adjResult.VolumeRef * (1.0 + calibTarget / 100.0);
             double q2adjErrorShiftedToTarget = Config.Formulas.ErrorFromVolumes(q2adjResult.VolumeMeter, volumeRefShiftedToTarget);
 
@@ -1047,9 +1047,9 @@ namespace TBF.Rig.TestMethods.iPerlCommunication.iPerlHead
             switch (units)
             {
                 default:
-                case VolumeUnits.m3:        return Config.Units.ConvertFrom(Config.Unit.m3, 1.0);       /// 1 liter
-                case VolumeUnits.UK_gallon: return Config.Units.ConvertFrom(Config.Unit.UKgal, 1.0);    /// 1 imperial gallon
-                case VolumeUnits.US_gallon: return Config.Units.ConvertFrom(Config.Unit.USgal, 1.0);    /// 1 US gallon
+                case VolumeUnits.m3:        return Common.Units.ConvertFrom(Common.Unit.m3, 1.0);       /// 1 liter
+                case VolumeUnits.UK_gallon: return Common.Units.ConvertFrom(Common.Unit.UKgal, 1.0);    /// 1 imperial gallon
+                case VolumeUnits.US_gallon: return Common.Units.ConvertFrom(Common.Unit.USgal, 1.0);    /// 1 US gallon
             }
         }
 
diff --git a/TBF/Rig/TestMethods/iPerlCommunication/iPerlHead/IperlHeadCfg.cs b/TBF/Rig/TestMethods/iPerlCommunication/iPerlHead/IperlHeadCfg.cs
index e531e7caa..eff628942 100644
--- a/TBF/Rig/TestMethods/iPerlCommunication/iPerlHead/IperlHeadCfg.cs
+++ b/TBF/Rig/TestMethods/iPerlCommunication/iPerlHead/IperlHeadCfg.cs
@@ -1,15 +1,10 @@
 ///
 /// Copyright (c) 2015-2017 Sensus Metering Systems
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
-using System.Net;
-using System.Net.Sockets;
 using System.Xml.Serialization;
-using Config.Entities;
+using Common;
 using TBF.Rig.Generic;
-using TBF.Resources;
 
 namespace TBF.Rig.TestMethods.iPerlCommunication.iPerlHead
 {
diff --git a/TBF/Rig/TestParamsBase.cs b/TBF/Rig/TestParamsBase.cs
index d4b211abf..60eb5c164 100644
--- a/TBF/Rig/TestParamsBase.cs
+++ b/TBF/Rig/TestParamsBase.cs
@@ -6,6 +6,7 @@ using System.Collections.Generic;
 using System.IO;
 using System.Text;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 
 namespace TBF.Rig
diff --git a/TBF/Rig/Various/ErrorFlags/ErrorsCfg.cs b/TBF/Rig/Various/ErrorFlags/ErrorsCfg.cs
index 4bb5a6be8..4d0f51313 100644
--- a/TBF/Rig/Various/ErrorFlags/ErrorsCfg.cs
+++ b/TBF/Rig/Various/ErrorFlags/ErrorsCfg.cs
@@ -10,7 +10,7 @@ using TBF.Rig.Generic;
 
 namespace TBF.Rig.Various.ErrorFlags
 {
-    public class ErrorsCfg : ComponentCfgBase, IComponentCfg, Config.Entities.IParamsProvider
+    public class ErrorsCfg : ComponentCfgBase, IComponentCfg, IParamsProvider
 	{
 		public static XmlSerializer Serializer = XmlSerializer.FromTypes(new[] { typeof(ErrorsCfg) })[0];
         public override XmlSerializer GetSerializer() { return Serializer; }
@@ -121,7 +121,7 @@ namespace TBF.Rig.Various.ErrorFlags
             prms.Q1Names = this.Q1Names;
         }
 
-        public Config.Entities.IParamsProvider Clone()
+        public IParamsProvider Clone()
         {
             ErrorsCfg pars = new ErrorsCfg();
             CopyContentTo(pars);
diff --git a/TBF/Rig/Various/StatisticsMonitoring/StatisticsCfg.cs b/TBF/Rig/Various/StatisticsMonitoring/StatisticsCfg.cs
index daa731d82..82f0498d1 100644
--- a/TBF/Rig/Various/StatisticsMonitoring/StatisticsCfg.cs
+++ b/TBF/Rig/Various/StatisticsMonitoring/StatisticsCfg.cs
@@ -14,7 +14,7 @@ namespace TBF.Rig.Various.StatisticsMonitoring
     /// <summary>
     /// Serializable configuration of Various.StatisticsMonitoring component.
     /// </summary>
-    public class StatisticsCfg : ComponentCfgBase, Generic.IComponentCfg, Config.Entities.IParamsProvider
+    public class StatisticsCfg : ComponentCfgBase, Generic.IComponentCfg, IParamsProvider
     {
         public static XmlSerializer Serializer = XmlSerializer.FromTypes(new[] { typeof(StatisticsCfg) })[0];
         public override XmlSerializer GetSerializer() { return Serializer; }
@@ -113,7 +113,7 @@ namespace TBF.Rig.Various.StatisticsMonitoring
             prms.iPerlHeadFailureRateThreshold = this.iPerlHeadFailureRateThreshold;                  /// 1
         }
 
-        public Config.Entities.IParamsProvider Clone()
+        public IParamsProvider Clone()
         {
             StatisticsCfg pars = new StatisticsCfg();
             CopyContentTo(pars);
diff --git a/TBF/Rig/WaterMeters/Munich/WaterMeterCfg.cs b/TBF/Rig/WaterMeters/Munich/WaterMeterCfg.cs
index b861e0553..cfb60e425 100644
--- a/TBF/Rig/WaterMeters/Munich/WaterMeterCfg.cs
+++ b/TBF/Rig/WaterMeters/Munich/WaterMeterCfg.cs
@@ -1,13 +1,10 @@
 ///
 /// Copyright (c) 2016 Sensus Metering Systems
 ///
-using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Xml.Serialization;
-using Config.Entities;
+using Common;
 using TBF.Rig.Generic;
-using TBF.Resources;
 
 namespace TBF.Rig.WaterMeters.Munich
 {
diff --git a/TBF/Rig/WaterMeters/WaterMeter/WaterMeterCfg.cs b/TBF/Rig/WaterMeters/WaterMeter/WaterMeterCfg.cs
index f4af75904..4c363eade 100644
--- a/TBF/Rig/WaterMeters/WaterMeter/WaterMeterCfg.cs
+++ b/TBF/Rig/WaterMeters/WaterMeter/WaterMeterCfg.cs
@@ -4,6 +4,7 @@
 using System;
 using System.Collections.Generic;
 using System.Xml.Serialization;
+using Common;
 using Config.Entities;
 using TBF.Rig.Generic;
 
diff --git a/TBF/TBF.csproj b/TBF/TBF.csproj
index 58556edfe..51a784f42 100644
--- a/TBF/TBF.csproj
+++ b/TBF/TBF.csproj
@@ -1272,7 +1272,6 @@
     <Compile Include="Rig\Sirt\V2012_433Mhz\Factory.cs" />
     <Compile Include="Rig\Sirt\V2012_433Mhz\Sirt.cs" />
     <Compile Include="Rig\Sirt\V2012_433Mhz\SirtCfg.cs" />
-    <Compile Include="Rig\Telegram.cs" />
     <Compile Include="Rig\TestMethods\Adjustment\WMErrorsForm12.cs">
       <SubType>Form</SubType>
     </Compile>
@@ -2291,7 +2290,9 @@
     <Compile Include="UI\Bench\Paths\PathsHeatMetersCtrl.cs">
       <SubType>Component</SubType>
     </Compile>
-    <Compile Include="UI\Bench\Paths\PathsMetersCtrl.cs" />
+    <Compile Include="UI\Bench\Paths\PathsMetersCtrl.cs">
+      <SubType>Component</SubType>
+    </Compile>
     <Compile Include="UI\Bench\Paths\PathsOutputCtrl.cs">
       <SubType>Component</SubType>
     </Compile>
diff --git a/TBF/UI/Bench/Metrology/MetrologyDlgBalanceTab.cs b/TBF/UI/Bench/Metrology/MetrologyDlgBalanceTab.cs
index 886ac9a43..23a90dfdf 100644
--- a/TBF/UI/Bench/Metrology/MetrologyDlgBalanceTab.cs
+++ b/TBF/UI/Bench/Metrology/MetrologyDlgBalanceTab.cs
@@ -382,7 +382,7 @@ namespace TBF.UI.Bench.Metrology
 							   CultureInfo.InvariantCulture,
 							   out measured))
 			{
-				double corrected = Config.Formulas.CorrectedValue(measured, meterEntity.Corrections);
+				double corrected = MeasurementCorrection.CorrectedValue(measured, meterEntity.Corrections);
 				correctedTextBox.Text = corrected.ToString();
 			}
 		}
diff --git a/TBF/UI/Bench/Metrology/MetrologyDlgDensityTab.cs b/TBF/UI/Bench/Metrology/MetrologyDlgDensityTab.cs
index 661b05477..af92ed948 100644
--- a/TBF/UI/Bench/Metrology/MetrologyDlgDensityTab.cs
+++ b/TBF/UI/Bench/Metrology/MetrologyDlgDensityTab.cs
@@ -55,9 +55,9 @@ namespace TBF.UI.Bench.Metrology
             Localize();
 
 			/// Panel1
-			densityLabel.Text = string.Format("{0} [{1}]", Strings.Density, Config.Unit.kgpm3.ToDescription());
-			temperatureLabel.Text = string.Format("{0} [{1}]", Strings.At_temperature, Config.Unit.C.ToDescription());
-			densityCorrLabel.Text = string.Format("{0} [{1}]", Strings.Density_correction, Config.Unit.kgpm3.ToDescription());
+			densityLabel.Text = string.Format("{0} [{1}]", Strings.Density, Common.Unit.kgpm3.ToDescription());
+			temperatureLabel.Text = string.Format("{0} [{1}]", Strings.At_temperature, Common.Unit.C.ToDescription());
+			densityCorrLabel.Text = string.Format("{0} [{1}]", Strings.Density_correction, Common.Unit.kgpm3.ToDescription());
 
 			/// Panel2
 
diff --git a/TBF/UI/Bench/Metrology/MetrologyDlgDiverterTab.cs b/TBF/UI/Bench/Metrology/MetrologyDlgDiverterTab.cs
index 6f81e5d7a..2c1682f30 100644
--- a/TBF/UI/Bench/Metrology/MetrologyDlgDiverterTab.cs
+++ b/TBF/UI/Bench/Metrology/MetrologyDlgDiverterTab.cs
@@ -332,7 +332,7 @@ namespace TBF.UI.Bench.Metrology
 							   CultureInfo.InvariantCulture,
 							   out measured))
 			{
-				double corrected = Config.Formulas.CorrectedValue(measured, meterEntity.Corrections);
+				double corrected = MeasurementCorrection.CorrectedValue(measured, meterEntity.Corrections);
 				correctedTextBox.Text = corrected.ToString();
 			}
 		}
diff --git a/TBF/UI/Bench/Metrology/MetrologyDlgEvaporationTab.cs b/TBF/UI/Bench/Metrology/MetrologyDlgEvaporationTab.cs
index c44323f50..dc0dd306d 100644
--- a/TBF/UI/Bench/Metrology/MetrologyDlgEvaporationTab.cs
+++ b/TBF/UI/Bench/Metrology/MetrologyDlgEvaporationTab.cs
@@ -332,7 +332,7 @@ namespace TBF.UI.Bench.Metrology
 							   CultureInfo.InvariantCulture,
 							   out measured))
 			{
-				double corrected = Config.Formulas.CorrectedValue(measured, meterEntity.Corrections);
+                double corrected = MeasurementCorrection.CorrectedValue(measured, meterEntity.Corrections);
 				correctedTextBox.Text = corrected.ToString();
 			}
 		}
diff --git a/TBF/UI/Bench/Metrology/MetrologyDlgFlowMeterTab.cs b/TBF/UI/Bench/Metrology/MetrologyDlgFlowMeterTab.cs
index 736b239e5..8b72a3acf 100644
--- a/TBF/UI/Bench/Metrology/MetrologyDlgFlowMeterTab.cs
+++ b/TBF/UI/Bench/Metrology/MetrologyDlgFlowMeterTab.cs
@@ -379,7 +379,7 @@ namespace TBF.UI.Bench.Metrology
 							   CultureInfo.InvariantCulture,
 							   out measured))
 			{
-				double corrected = Config.Formulas.CorrectedValue(measured, meterEntity.Corrections);
+				double corrected = MeasurementCorrection.CorrectedValue(measured, meterEntity.Corrections);
 				correctedTextBox.Text = corrected.ToString();
 			}
 		}
diff --git a/TBF/UI/Bench/Metrology/MetrologyDlgLevelMeterTab.cs b/TBF/UI/Bench/Metrology/MetrologyDlgLevelMeterTab.cs
index 63f8cd8a6..fcdd47135 100644
--- a/TBF/UI/Bench/Metrology/MetrologyDlgLevelMeterTab.cs
+++ b/TBF/UI/Bench/Metrology/MetrologyDlgLevelMeterTab.cs
@@ -332,7 +332,7 @@ namespace TBF.UI.Bench.Metrology
 							   CultureInfo.InvariantCulture,
 							   out measured))
 			{
-				double corrected = Config.Formulas.CorrectedValue(measured, meterEntity.Corrections);
+				double corrected = MeasurementCorrection.CorrectedValue(measured, meterEntity.Corrections);
 				correctedTextBox.Text = corrected.ToString();
 			}
 		}
diff --git a/TBF/UI/Bench/Metrology/MetrologyDlgPressMeterTab.cs b/TBF/UI/Bench/Metrology/MetrologyDlgPressMeterTab.cs
index ba519d7f3..4227e8b02 100644
--- a/TBF/UI/Bench/Metrology/MetrologyDlgPressMeterTab.cs
+++ b/TBF/UI/Bench/Metrology/MetrologyDlgPressMeterTab.cs
@@ -359,7 +359,7 @@ namespace TBF.UI.Bench.Metrology
 							   CultureInfo.InvariantCulture,
 							   out measured))
 			{
-				double corrected = Config.Formulas.CorrectedValue(measured, meterEntity.Corrections);
+				double corrected = MeasurementCorrection.CorrectedValue(measured, meterEntity.Corrections);
 				correctedTextBox.Text = corrected.ToString();
 			}
 		}
diff --git a/TBF/UI/Bench/Metrology/MetrologyDlgTempMeterTab.cs b/TBF/UI/Bench/Metrology/MetrologyDlgTempMeterTab.cs
index 163fdedb1..d702fae10 100644
--- a/TBF/UI/Bench/Metrology/MetrologyDlgTempMeterTab.cs
+++ b/TBF/UI/Bench/Metrology/MetrologyDlgTempMeterTab.cs
@@ -359,7 +359,7 @@ namespace TBF.UI.Bench.Metrology
 							   CultureInfo.InvariantCulture,
 							   out measured))
 			{
-				double corrected = Config.Formulas.CorrectedValue(measured, meterEntity.Corrections);
+				double corrected = MeasurementCorrection.CorrectedValue(measured, meterEntity.Corrections);
 				correctedTextBox.Text = corrected.ToString();
 			}
 		}
diff --git a/TBF/UI/Procedures/IProcParamsCtrl.cs b/TBF/UI/Procedures/IProcParamsCtrl.cs
index 456bbb3c6..bf977631e 100644
--- a/TBF/UI/Procedures/IProcParamsCtrl.cs
+++ b/TBF/UI/Procedures/IProcParamsCtrl.cs
@@ -3,7 +3,7 @@
 ///
 using System;
 using System.Collections.Generic;
-using Config.Entities;
+using Common;
 
 namespace TBF.UI.Procedures
 {
diff --git a/TBF/UI/Procedures/ProcedureDlg.cs b/TBF/UI/Procedures/ProcedureDlg.cs
index 55397e7e0..bcb50c41b 100644
--- a/TBF/UI/Procedures/ProcedureDlg.cs
+++ b/TBF/UI/Procedures/ProcedureDlg.cs
@@ -845,7 +845,7 @@ namespace TBF.UI.Procedures
 					methodCBox,		/// Method
 				};
 
-            for (Config.Unit u = 0; u < Config.Unit.Count; u++)
+            for (Common.Unit u = 0; u < Common.Unit.Count; u++)
             {
                 if (Units.IsFlow(u)) flowUnitBox.Items.Add(u.ToDescription());
                 if (Units.IsVolume(u)) volUnitBox.Items.Add(u.ToDescription());
diff --git a/TBF/UI/Procedures/ProcedureParamsCtrl.cs b/TBF/UI/Procedures/ProcedureParamsCtrl.cs
index 7a34d2506..7ecad563e 100644
--- a/TBF/UI/Procedures/ProcedureParamsCtrl.cs
+++ b/TBF/UI/Procedures/ProcedureParamsCtrl.cs
@@ -5,6 +5,7 @@ using System;
 using System.Collections.Generic;
 using System.Windows.Forms;
 using Config.Entities;
+using Common;
 using Common.Forms;
 using TBF.Rig.Generic;
 using TBF.Resources;
diff --git a/TBF/UI/Procedures/ProcedureParamsMixedCtrl.cs b/TBF/UI/Procedures/ProcedureParamsMixedCtrl.cs
index 77b0c9f6b..9a6786774 100644
--- a/TBF/UI/Procedures/ProcedureParamsMixedCtrl.cs
+++ b/TBF/UI/Procedures/ProcedureParamsMixedCtrl.cs
@@ -5,6 +5,7 @@ using System;
 using System.Collections.Generic;
 using System.Windows.Forms;
 using Config.Entities;
+using Common;
 using Common.Forms;
 using TBF.Rig.Generic;
 using TBF.Resources;
@@ -122,7 +123,7 @@ namespace TBF.UI.Procedures
             ProviderAndIx ppp = e.Item.Tag as ProviderAndIx;
             if (ppp == null) return;
             
-            string message;
+            string message = string.Empty;
 			if (ppp.Provider.ValidateParam(ppp.Index, e.DisplayText, out message))
 			{
 				ppp.Provider.UpdateParam(ppp.Index, e.DisplayText);
diff --git a/TBF/UI/Procedures/ProviderAndIx.cs b/TBF/UI/Procedures/ProviderAndIx.cs
index acb239e09..ef29ff267 100644
--- a/TBF/UI/Procedures/ProviderAndIx.cs
+++ b/TBF/UI/Procedures/ProviderAndIx.cs
@@ -2,7 +2,7 @@
 /// Copyright (c) 2021 Sensus Slovensko a.s.
 ///
 using System;
-using Config.Entities;
+using Common;
 
 namespace TBF.UI.Procedures
 {
diff --git a/TBF/UI/Process/ProcessTabPageCtrl24.cs b/TBF/UI/Process/ProcessTabPageCtrl24.cs
index 6a1018d9f..0ea5aff19 100644
--- a/TBF/UI/Process/ProcessTabPageCtrl24.cs
+++ b/TBF/UI/Process/ProcessTabPageCtrl24.cs
@@ -422,7 +422,7 @@ namespace TBF.UI.Process
 			/// Always available
 			///
 			airTempLabel.Text = ProcessData.AmbTemp.ToString();
-            airPressLabel.Text = Config.Units.ConvertTo(Config.Unit.mbar, ProcessData.AmbPress.Val).ToString("F0");
+            airPressLabel.Text = Common.Units.ConvertTo(Common.Unit.mbar, ProcessData.AmbPress.Val).ToString("F0");
             airHumiLabel.Text = ProcessData.AmbHumi.ToString();
 
 			tInLabel.Text = ProcessData.TempUp.ToString();
@@ -522,7 +522,7 @@ namespace TBF.UI.Process
             if (tRes == null) return;
 
 			airTempLabel.Text = tRes.AmbTempMean.ToString("F1");
-            airPressLabel.Text = Config.Units.ConvertTo(Config.Unit.mbar, tRes.AmbPressMean).ToString("F0");
+            airPressLabel.Text = Common.Units.ConvertTo(Common.Unit.mbar, tRes.AmbPressMean).ToString("F0");
             airHumiLabel.Text = tRes.AmbHumiMean.ToString("F1");
 
 			tInLabel.Text = tRes.TempUpMean.ToString("F2");
diff --git a/TBF/UI/Process/ProcessTabPageCtrl48.cs b/TBF/UI/Process/ProcessTabPageCtrl48.cs
index 221352d0f..b86a0fd11 100644
--- a/TBF/UI/Process/ProcessTabPageCtrl48.cs
+++ b/TBF/UI/Process/ProcessTabPageCtrl48.cs
@@ -451,7 +451,7 @@ namespace TBF.UI.Process
 			/// Always available
 			///
 			airTempLabel.Text = ProcessData.AmbTemp.ToString();
-            airPressLabel.Text = Config.Units.ConvertTo(Config.Unit.mbar, ProcessData.AmbPress.Val).ToString("F0");
+            airPressLabel.Text = Common.Units.ConvertTo(Common.Unit.mbar, ProcessData.AmbPress.Val).ToString("F0");
             airHumiLabel.Text = ProcessData.AmbHumi.ToString();
 
             tInLabel.Text = ProcessData.TempUp.ToString();
@@ -551,7 +551,7 @@ namespace TBF.UI.Process
             if (tRes == null) return;
 
 			airTempLabel.Text = tRes.AmbTempMean.ToString("F1");
-            airPressLabel.Text = Config.Units.ConvertTo(Config.Unit.mbar, tRes.AmbPressMean).ToString("F0");
+            airPressLabel.Text = Common.Units.ConvertTo(Common.Unit.mbar, tRes.AmbPressMean).ToString("F0");
             airHumiLabel.Text = tRes.AmbHumiMean.ToString("F1");
 
 			tInLabel.Text = tRes.TempUpMean.ToString("F2");
diff --git a/TBF/UI/Process/ProcessTabPageCtrl6.cs b/TBF/UI/Process/ProcessTabPageCtrl6.cs
index 92ea264c3..e2176a989 100644
--- a/TBF/UI/Process/ProcessTabPageCtrl6.cs
+++ b/TBF/UI/Process/ProcessTabPageCtrl6.cs
@@ -454,9 +454,9 @@ namespace TBF.UI.Process
 			///
 			/// Always available
 			///
-			airTempLabel.Text = Config.Units.ConvertTo(Config.Unit.C, ProcessData.AmbTemp.Val).ToString("F1");
-            airPressLabel.Text = Config.Units.ConvertTo(Config.Unit.mbar, ProcessData.AmbPress.Val).ToString("F0");
-            airHumiLabel.Text = Config.Units.ConvertTo(Config.Unit.RPct, ProcessData.AmbHumi.Val).ToString("F1");
+			airTempLabel.Text = Common.Units.ConvertTo(Common.Unit.C, ProcessData.AmbTemp.Val).ToString("F1");
+            airPressLabel.Text = Common.Units.ConvertTo(Common.Unit.mbar, ProcessData.AmbPress.Val).ToString("F0");
+            airHumiLabel.Text = Common.Units.ConvertTo(Common.Unit.RPct, ProcessData.AmbHumi.Val).ToString("F1");
 
 			tInLabel.Text = ProcessData.TempUp.ToString();
 			tOutLabel.Text = ProcessData.TempDown.ToString();
@@ -555,7 +555,7 @@ namespace TBF.UI.Process
             if (tRes == null) return;
 
 			airTempLabel.Text = tRes.AmbTempMean.ToString("F1");
-            airPressLabel.Text = Config.Units.ConvertTo(Config.Unit.mbar, tRes.AmbPressMean).ToString("F0");
+            airPressLabel.Text = Common.Units.ConvertTo(Common.Unit.mbar, tRes.AmbPressMean).ToString("F0");
             airHumiLabel.Text = tRes.AmbHumiMean.ToString("F1");
 
 			tInLabel.Text = tRes.TempUpMean.ToString("F2");
diff --git a/TBF/UI/Process/ProcessTabPageExCtrl.cs b/TBF/UI/Process/ProcessTabPageExCtrl.cs
index 9c6980e30..b1c573e46 100644
--- a/TBF/UI/Process/ProcessTabPageExCtrl.cs
+++ b/TBF/UI/Process/ProcessTabPageExCtrl.cs
@@ -334,7 +334,7 @@ namespace TBF.UI.Process
             /// Always available
             ///
             airTempLabel.Text = ProcessData.AmbTemp.ToString();
-            airPressLabel.Text = Config.Units.ConvertTo(Config.Unit.mbar, ProcessData.AmbPress.Val).ToString("F0");
+            airPressLabel.Text = Common.Units.ConvertTo(Common.Unit.mbar, ProcessData.AmbPress.Val).ToString("F0");
             airHumiLabel.Text = ProcessData.AmbHumi.ToString();
 
             tInLabel.Text = ProcessData.TempUp.ToString();
diff --git a/TBF/UI/Settings/BenchesDlg.cs b/TBF/UI/Settings/BenchesDlg.cs
index 440737e0b..66bba3242 100644
--- a/TBF/UI/Settings/BenchesDlg.cs
+++ b/TBF/UI/Settings/BenchesDlg.cs
@@ -3,6 +3,7 @@
 ///
 using System;
 using System.Windows.Forms;
+using Common;
 using TBF.Resources;
 
 namespace TBF.UI.Settings
@@ -63,7 +64,7 @@ namespace TBF.UI.Settings
         /// </summary>
         private void addButton_Click(object sender, EventArgs e)
         {
-			Config.DatabaseSettings bench = new Config.DatabaseSettings();
+			DatabaseSettings bench = new DatabaseSettings();
             DatabaseSettingsDlg dlg = new DatabaseSettingsDlg(bench, TBF.DB.CurrentBench.ProceduresDBSettings.ConnectionString,
                                                                      TBF.DB.CurrentBench.WaterMetersDBSettings.ConnectionString,
                                                                      TBF.DB.CurrentBench.EventsDBSettings.ConnectionString);
@@ -76,12 +77,12 @@ namespace TBF.UI.Settings
 
                 if (nrBenches == 0)
                 {
-					localSettings.TestBenches = new Config.DatabaseSettings[1];
+					localSettings.TestBenches = new DatabaseSettings[1];
                     localSettings.TestBenches[0] = bench;
                 }
                 else
                 {
-					Config.DatabaseSettings[] newTestBenches = new Config.DatabaseSettings[nrBenches + 1];
+					DatabaseSettings[] newTestBenches = new DatabaseSettings[nrBenches + 1];
                     for (int i = 0; i < nrBenches; i++)
                     {
                         newTestBenches[i] = localSettings.TestBenches[i];
@@ -102,8 +103,8 @@ namespace TBF.UI.Settings
         {
             if (testBenchesListBox.SelectedIndex >= 0)
             {
-				Config.DatabaseSettings ori = localSettings.TestBenches[testBenchesListBox.SelectedIndex];
-				Config.DatabaseSettings bench = (Config.DatabaseSettings)ori.Clone();
+				DatabaseSettings ori = localSettings.TestBenches[testBenchesListBox.SelectedIndex];
+				DatabaseSettings bench = (DatabaseSettings)ori.Clone();
 
                 DatabaseSettingsDlg dlg = new DatabaseSettingsDlg(bench, TBF.DB.CurrentBench.ProceduresDBSettings.ConnectionString,
                                                                          TBF.DB.CurrentBench.WaterMetersDBSettings.ConnectionString,
@@ -115,7 +116,7 @@ namespace TBF.UI.Settings
                     int nrBenches =
                         (localSettings.TestBenches == null) ? 0 : localSettings.TestBenches.GetLength(0);
 
-					Config.DatabaseSettings[] newTestBenches = new Config.DatabaseSettings[nrBenches + 1];
+					DatabaseSettings[] newTestBenches = new DatabaseSettings[nrBenches + 1];
                     for (int i = 0; i < nrBenches; i++)
                     {
                         newTestBenches[i] = localSettings.TestBenches[i];
@@ -167,7 +168,7 @@ namespace TBF.UI.Settings
                 }
                 else
                 {
-					Config.DatabaseSettings[] newTestBenches = new Config.DatabaseSettings[nrBenches - 1];
+					DatabaseSettings[] newTestBenches = new DatabaseSettings[nrBenches - 1];
                     for (int i = 0; i < selectedIx; i++)
                     {
                         newTestBenches[i] = localSettings.TestBenches[i];
diff --git a/TBF/UI/Settings/DatabaseSettingsDlg.cs b/TBF/UI/Settings/DatabaseSettingsDlg.cs
index fb3edc7ca..7f88b4525 100644
--- a/TBF/UI/Settings/DatabaseSettingsDlg.cs
+++ b/TBF/UI/Settings/DatabaseSettingsDlg.cs
@@ -21,7 +21,7 @@ namespace TBF.UI.Settings
         const string CredFileName = "tempfile";
 
         // Reference to bench DB settins (not a local copy)
-        Config.DatabaseSettings bench;
+        DatabaseSettings bench;
 
         string currentConfigDBConnStr;      /// Initialized in constructor by the parent
         string currentResultsDBConnStr;     /// Initialized in constructor by the parent
@@ -33,7 +33,7 @@ namespace TBF.UI.Settings
         /// Constructor
         /// </summary>
         /// <param name="bench">Test bench database settings</param>
-        public DatabaseSettingsDlg(Config.DatabaseSettings bench, string currentConfigDBConnStr, string currentResultsDBConnStr, string currentEventsDBConnStr)
+        public DatabaseSettingsDlg(DatabaseSettings bench, string currentConfigDBConnStr, string currentResultsDBConnStr, string currentEventsDBConnStr)
         {
             this.bench = bench;
             this.currentConfigDBConnStr = currentConfigDBConnStr;
@@ -81,9 +81,9 @@ namespace TBF.UI.Settings
             realBenchCheckBox.Checked = bench.IsRealBench;
 
             /// Initialize 'Database type' combo-boxes
-			for (int i = 0; i < (int)Common.DBType.Count; i++)
+			for (int i = 0; i < (int)DBType.Count; i++)
             {
-				Common.DBType dbType = (Common.DBType)i;
+				DBType dbType = (DBType)i;
                 configDbTypeComboBox.Items.Add(dbType);
                 resultsDbTypeComboBox.Items.Add(dbType);
                 eventsDbTypeComboBox.Items.Add(dbType);
@@ -122,10 +122,10 @@ namespace TBF.UI.Settings
             bench.EventsDBSettings.ConnectionString = eventsDbConnectionStringTextBox.Text;
             bench.UsersDBSettings.ConnectionString = usersDbConnectionStringTextBox.Text;
 
-			bench.ProceduresDBSettings.DbType = (Common.DBType)configDbTypeComboBox.SelectedIndex;
-			bench.WaterMetersDBSettings.DbType = (Common.DBType)resultsDbTypeComboBox.SelectedIndex;
-            bench.EventsDBSettings.DbType = (Common.DBType)eventsDbTypeComboBox.SelectedIndex;
-            bench.UsersDBSettings.DbType = (Common.DBType)usersDbTypeComboBox.SelectedIndex;
+			bench.ProceduresDBSettings.DbType = (DBType)configDbTypeComboBox.SelectedIndex;
+			bench.WaterMetersDBSettings.DbType = (DBType)resultsDbTypeComboBox.SelectedIndex;
+            bench.EventsDBSettings.DbType = (DBType)eventsDbTypeComboBox.SelectedIndex;
+            bench.UsersDBSettings.DbType = (DBType)usersDbTypeComboBox.SelectedIndex;
 
             return true;
         }
diff --git a/ToFirstMonitor/ToFirstMonitor.csproj b/ToFirstMonitor/ToFirstMonitor.csproj
index 54bf653b5..2c6bfabde 100644
--- a/ToFirstMonitor/ToFirstMonitor.csproj
+++ b/ToFirstMonitor/ToFirstMonitor.csproj
@@ -52,9 +52,9 @@
     <None Include="App.config" />
   </ItemGroup>
   <ItemGroup>
-    <ProjectReference Include="..\Config\Config.csproj">
-      <Project>{743df7db-c7b6-42eb-986d-0f485e5588e4}</Project>
-      <Name>Config</Name>
+    <ProjectReference Include="..\Common\Common.csproj">
+      <Project>{c8939821-ba5c-4988-a3d0-bf53b74865c7}</Project>
+      <Name>Common</Name>
     </ProjectReference>
     <ProjectReference Include="..\TBF\TBF.csproj">
       <Project>{8648fd92-cda1-4c3a-b5f9-fe547ce1fa48}</Project>
diff --git a/ToSecondMonitor/ToSecondMonitor.csproj b/ToSecondMonitor/ToSecondMonitor.csproj
index 54b09c2b7..4599d0e59 100644
--- a/ToSecondMonitor/ToSecondMonitor.csproj
+++ b/ToSecondMonitor/ToSecondMonitor.csproj
@@ -49,9 +49,9 @@
     <None Include="App.config" />
   </ItemGroup>
   <ItemGroup>
-    <ProjectReference Include="..\Config\Config.csproj">
-      <Project>{743df7db-c7b6-42eb-986d-0f485e5588e4}</Project>
-      <Name>Config</Name>
+    <ProjectReference Include="..\Common\Common.csproj">
+      <Project>{c8939821-ba5c-4988-a3d0-bf53b74865c7}</Project>
+      <Name>Common</Name>
     </ProjectReference>
     <ProjectReference Include="..\TBF\TBF.csproj">
       <Project>{8648fd92-cda1-4c3a-b5f9-fe547ce1fa48}</Project>
diff --git a/TracingDB/TracingDB.csproj b/TracingDB/TracingDB.csproj
index 251a85576..f24d9235f 100644
--- a/TracingDB/TracingDB.csproj
+++ b/TracingDB/TracingDB.csproj
@@ -81,7 +81,6 @@
     </Compile>
     <Compile Include="ItemSpec.cs" />
     <Compile Include="Mappings\WorkplaceRegistrationMap.cs" />
-    <Compile Include="QuitAppException.cs" />
     <Compile Include="Resources\Strings.Designer.cs">
       <AutoGen>True</AutoGen>
       <DesignTime>True</DesignTime>
diff --git a/Users/Users.csproj b/Users/Users.csproj
index 3a91f1a90..797c438d4 100644
--- a/Users/Users.csproj
+++ b/Users/Users.csproj
@@ -60,7 +60,6 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
-    <Compile Include="DBSettings.cs" />
     <Compile Include="Forms\PasswordChangeDlg.cs">
       <SubType>Form</SubType>
     </Compile>