diff --git a/Mk2_3phase_RFdatalog_temp/calibration.h b/Mk2_3phase_RFdatalog_temp/calibration.h
index 04a7440..082ffeb 100644
--- a/Mk2_3phase_RFdatalog_temp/calibration.h
+++ b/Mk2_3phase_RFdatalog_temp/calibration.h
@@ -31,7 +31,7 @@
 // powerCal is the RECIPROCAL of the power conversion rate. A good value
 // to start with is therefore 1/20 = 0.05 (Watts per ADC-step squared)
 //
-inline constexpr float f_powerCal[NO_OF_PHASES]{ 0.05000F, 0.05000F, 0.05000F };
+inline constexpr float f_powerCal[NO_OF_PHASES]{ 0.042911F, 0.043631F, 0.042157F };
 //
 // f_phaseCal is used to alter the phase of the voltage waveform relative to the current waveform.
 // The algorithm interpolates between the most recent pair of voltage samples according to the value of f_phaseCal.
diff --git a/Mk2_3phase_RFdatalog_temp/config.h b/Mk2_3phase_RFdatalog_temp/config.h
index 7bea63d..6938ee3 100644
--- a/Mk2_3phase_RFdatalog_temp/config.h
+++ b/Mk2_3phase_RFdatalog_temp/config.h
@@ -35,7 +35,7 @@
 //--------------------------------------------------------------------------------------------------
 // constants which must be set individually for each system
 //
-inline constexpr uint8_t NO_OF_DUMPLOADS{ 2 }; /**< number of dump loads connected to the diverter */
+inline constexpr uint8_t NO_OF_DUMPLOADS{ 1 }; /**< number of dump loads connected to the diverter */
 
 #ifdef EMONESP
 inline constexpr bool EMONESP_CONTROL{ true };
@@ -50,7 +50,7 @@ inline constexpr bool OVERRIDE_PIN_PRESENT{ false };                    /**< set
 #endif
 
 inline constexpr bool WATCHDOG_PIN_PRESENT{ false }; /**< set it to 'true' if there's a watch led */
-inline constexpr bool RELAY_DIVERSION{ false };       /**< set it to 'true' if a relay is used for diversion */
+inline constexpr bool RELAY_DIVERSION{ true };      /**< set it to 'true' if a relay is used for diversion */
 inline constexpr bool DUAL_TARIFF{ false };          /**< set it to 'true' if there's a dual tariff each day AND the router is connected to the billing meter */
 
 // ----------- Pinout assignments -----------
@@ -71,8 +71,8 @@ inline constexpr bool DUAL_TARIFF{ false };          /**< set it to 'true' if th
 // D12 is MISO
 // D13 is SCK
 
-inline constexpr uint8_t physicalLoadPin[NO_OF_DUMPLOADS]{ 5, 7 };         /**< for 3-phase PCB, Load #1/#2/#3 (Rev 2 PCB) */
-inline constexpr uint8_t loadPrioritiesAtStartup[NO_OF_DUMPLOADS]{ 0, 1 }; /**< load priorities and states at startup */
+inline constexpr uint8_t physicalLoadPin[NO_OF_DUMPLOADS]{ 5 };         /**< for 3-phase PCB, Load #1/#2/#3 (Rev 2 PCB) */
+inline constexpr uint8_t loadPrioritiesAtStartup[NO_OF_DUMPLOADS]{ 0 }; /**< load priorities and states at startup */
 
 // Set the value to 0xff when the pin is not needed (feature deactivated)
 inline constexpr uint8_t dualTariffPin{ 0xff }; /**< for 3-phase PCB, off-peak trigger */
@@ -83,7 +83,7 @@ inline constexpr uint8_t watchDogPin{ 0xff };   /**< watch dog LED */
 
 inline constexpr uint8_t tempSensorPin{ 0xff }; /**< for 3-phase PCB, sensor pin */
 
-inline constexpr RelayEngine relays{ { { 0xff, 1000, 200, 1, 1 } } }; /**< config for relay diversion, see class definition for defaults and advanced options */
+inline constexpr RelayEngine relays{ { { 8, 1000, 200, 1, 1 } } }; /**< config for relay diversion, see class definition for defaults and advanced options */
 
 inline constexpr uint8_t ul_OFF_PEAK_DURATION{ 8 };                        /**< Duration of the off-peak period in hours */
 inline constexpr pairForceLoad rg_ForceLoad[NO_OF_DUMPLOADS]{ { -3, 2 } }; /**< force config for load #1 ONLY for dual tariff */
@@ -92,9 +92,6 @@ inline constexpr int16_t iTemperatureThreshold{ 100 }; /**< the temperature thre
 
 inline constexpr TemperatureSensing temperatureSensing{ 0xff,
                                                         { { 0x28, 0xBE, 0x41, 0x6B, 0x09, 0x00, 0x00, 0xA4 },
-                                                          { 0x28, 0xED, 0x5B, 0x6A, 0x09, 0x00, 0x00, 0x9D },
-                                                          { 0x28, 0xDB, 0x6D, 0x6A, 0x09, 0x00, 0x00, 0xDA },
-                                                          { 0x28, 0x59, 0x1F, 0x6A, 0x09, 0x00, 0x00, 0xB0 },
                                                           { 0x28, 0x1B, 0xD7, 0x6A, 0x09, 0x00, 0x00, 0xB7 } } }; /**< list of temperature sensor Addresses */
 
 inline constexpr uint32_t ROTATION_AFTER_CYCLES{ 8UL * 3600UL * SUPPLY_FREQUENCY }; /**< rotates load priorities after this period of inactivity */
diff --git a/dev/cal_CTx_v_meter/main.cpp b/dev/cal_CTx_v_meter/main.cpp
index ce87d15..554ed6c 100644
--- a/dev/cal_CTx_v_meter/main.cpp
+++ b/dev/cal_CTx_v_meter/main.cpp
@@ -127,7 +127,7 @@ constexpr int16_t ADCDuration{ 104 };  // Time in microseconds for one ADC conve
 // powerCal is the RECIPR0CAL of the power conversion rate. A good value
 // to start with is therefore 1/20 = 0.05 (Watts per ADC-step squared)
 //
-inline constexpr float f_powerCal[NO_OF_PHASES]{ 0.050000F, 0.050000F, 0.050000F };
+inline constexpr float f_powerCal[NO_OF_PHASES]{ 0.042911F, 0.043631F, 0.042157F };
 
 // f_phaseCal is used to alter the phase of the voltage waveform relative to the
 // current waveform. The algorithm interpolates between the most recent pair