Index: firmware/App/Drivers/PressureSensor.c
===================================================================
diff -u -r3edf8084a5028ee0d00a3fba496284e593e4254d -r51d83f99e63d9cb52951097996641cc5b3ddffd7
--- firmware/App/Drivers/PressureSensor.c	(.../PressureSensor.c)	(revision 3edf8084a5028ee0d00a3fba496284e593e4254d)
+++ firmware/App/Drivers/PressureSensor.c	(.../PressureSensor.c)	(revision 51d83f99e63d9cb52951097996641cc5b3ddffd7)
@@ -34,6 +34,9 @@
 #define BAR_TO_MMHG                                 ( 750.062F )                                        ///< Conversion factor for converting bar to mmHg.
 #define PRES_SENSORS_READ_ERR_MAX_CNT               0xFF                                                ///< Pressure sensor read and error max count value
 
+#define PRES_MIN_PSI                                0.0F                                                ///< Minimum range of pressure sensors (in PSI)
+#define PRES_MAX_PSI                                145.038F                                            ///< Maximum range of pressure sensors (in PSI)
+
 // ********** private data **********
 
 static OVERRIDE_F32_T currentPressureReadings[ NUM_OF_PRESSURE_SENSORS ];                               ///< Current pressure sensor pressure readings (overrideable).
@@ -100,11 +103,11 @@
 void readPressureSensors( void )
 {
     // Update and convert raw pressures to mmHg
-    currentPressureReadings[ PRESSURE_SENSOR_WATER_INLET_PRE_REG ].data = convertPressureReading2mmHg( getFPGAPRiRawPressure() );
-    currentPressureReadings[ PRESSURE_SENSOR_WATER_INLET_POST_REG ].data   = convertPressureReading2mmHg( getFPGAPRoRawPressure() );
-    currentPressureReadings[ PRESSURE_SENSOR_WATER_INLET_PRE_COND ].data = convertPressureReading2mmHg( getFPGAPC2oRawPressure() );
-    currentPressureReadings[ PRESSURE_SENSOR_PRE_RO_FILTER ].data   = convertPressureReading2mmHg( getFPGAPPoRawPressure() );
-    currentPressureReadings[ PRESSURE_SENSOR_POST_RO_FILTER ].data = convertPressureReading2mmHg( getFPGAPMpRawPressure() );
+    currentPressureReadings[ PRESSURE_SENSOR_WATER_INLET_PRE_REG ].data = convertPressureReading( getFPGAPRiRawPressure(), PRES_MIN_PSI, PRES_MAX_PSI );
+    currentPressureReadings[ PRESSURE_SENSOR_WATER_INLET_POST_REG ].data   = convertPressureReading( getFPGAPRoRawPressure(), PRES_MIN_PSI, PRES_MAX_PSI );
+    currentPressureReadings[ PRESSURE_SENSOR_WATER_INLET_PRE_COND ].data = convertPressureReading( getFPGAPC2oRawPressure(), PRES_MIN_PSI, PRES_MAX_PSI );
+    currentPressureReadings[ PRESSURE_SENSOR_PRE_RO_FILTER ].data   = convertPressureReading( getFPGAPPoRawPressure(), PRES_MIN_PSI, PRES_MAX_PSI );
+    currentPressureReadings[ PRESSURE_SENSOR_POST_RO_FILTER ].data = convertPressureReading( getFPGAPMpRawPressure(), PRES_MIN_PSI, PRES_MAX_PSI );
 
     // Update and convert raw pressure sensor temperatures to deg C
     currentPresTempReadings[ PRESSURE_SENSOR_WATER_INLET_PRE_REG ].data = convertPressureTempReading2DegC( getFPGAPRiRawTemperature() );