Index: firmware/App/Controllers/ConcentratePumps.c
===================================================================
diff -u -r867521a9810f2218c34d96164fab614494a63f8d -r16341579abe0211c95cb541e40143f0e4670a8cd
--- firmware/App/Controllers/ConcentratePumps.c	(.../ConcentratePumps.c)	(revision 867521a9810f2218c34d96164fab614494a63f8d)
+++ firmware/App/Controllers/ConcentratePumps.c	(.../ConcentratePumps.c)	(revision 16341579abe0211c95cb541e40143f0e4670a8cd)
@@ -55,6 +55,7 @@
 #define CONCENTRATE_PUMP_VOLUME_PER_PULSE                   ( CONCENTRATE_PUMP_VOLUME_PER_REV / CONCENTRATE_PUMP_PULSE_PER_REV )
 
 #define CONCENTRATE_PUMP_DATA_PUBLISH_INTERVAL              ( 500 / TASK_GENERAL_INTERVAL )                     ///< Interval (ms/task time) at which the concentrate pump is monitored.
+
 #define CONCENTRATE_PUMP_CONTROL_INTERVAL                   ( 1 * MS_PER_SECOND / TASK_GENERAL_INTERVAL )       ///< Interval (ms/task time) at which the concentrate pump is controlled.
 #define CONCENTRATE_PUMP_SPEED_CONTROL_PERSISTENCE_PERIOD   ( 5 * MS_PER_SECOND )                               ///< Persistence period for concentrate pump speed control error.
 
Index: firmware/App/Controllers/ConductivitySensors.c
===================================================================
diff -u -r867521a9810f2218c34d96164fab614494a63f8d -r16341579abe0211c95cb541e40143f0e4670a8cd
--- firmware/App/Controllers/ConductivitySensors.c	(.../ConductivitySensors.c)	(revision 867521a9810f2218c34d96164fab614494a63f8d)
+++ firmware/App/Controllers/ConductivitySensors.c	(.../ConductivitySensors.c)	(revision 16341579abe0211c95cb541e40143f0e4670a8cd)
@@ -301,10 +301,10 @@
  *************************************************************************/
 static F32 calcCompensatedConductivity( F32 conductivity, F32 temperature )
 {
-    // EC = EC_25 * (1 + temp_coef * ( 25 - temperature ))
-    F32 const compensatedCoef  = ( 1.0 + ( COND_SENSOR_TEMPERATURE_COEF * ( COND_SENSOR_REFERENCE_TEMPERATURE - temperature ) ) );
+    // EC = EC_25 * (1 + temp_coef * ( temperature - 25 ))
+    F32 const compensatedCoef  = ( 1.0 + ( COND_SENSOR_TEMPERATURE_COEF * ( temperature - COND_SENSOR_REFERENCE_TEMPERATURE ) ) );
 
-    return conductivity * compensatedCoef;
+    return conductivity / compensatedCoef;
 }
 
 /*********************************************************************//**
Index: firmware/App/DGCommon.h
===================================================================
diff -u -r867521a9810f2218c34d96164fab614494a63f8d -r16341579abe0211c95cb541e40143f0e4670a8cd
--- firmware/App/DGCommon.h	(.../DGCommon.h)	(revision 867521a9810f2218c34d96164fab614494a63f8d)
+++ firmware/App/DGCommon.h	(.../DGCommon.h)	(revision 16341579abe0211c95cb541e40143f0e4670a8cd)
@@ -25,7 +25,7 @@
 #define DG_VERSION_MAJOR        0
 #define DG_VERSION_MINOR        6
 #define DG_VERSION_MICRO        0
-#define DG_VERSION_BUILD        19
+#define DG_VERSION_BUILD        142
 
 // ********** build switches **********
 
@@ -55,6 +55,7 @@
     #define IGNORE_CONC_PUMP_IN_HEAT_DISINFECT  1          // Not needed
 //    #define NEW_FMD_FLOW_SENSOR             1            // Not needed
     #define DISABLE_HEATERS_EFFICIENCY      1
+
     #define DISABLE_DISINFECT_CONDUCTIVITY 1           // Implement
 //    #define DISABLE_CONC_PUMPS             1
 //    #define DISABLE_CAP_SWITCHES            1           // Implement
@@ -95,6 +96,7 @@
     U08 fpgaMajor;                          ///< DG FPGA major revision
     U08 fpgaMinor;                          ///< DG FPGA minor revision
     U08 fpgaLab;                            ///< DG FPGA lab revision
+    U32 compatibilityRev;                   ///< DG compatibility revision
 } DG_VERSIONS_T;
 #pragma pack(pop)