Index: firmware/App/Controllers/Pressures.c
===================================================================
diff -u -r0f4fbb2a56cdbe35dcedd9cad23867fd7248f86e -r79e0b1152e278a3b09d7d93c83a27f8998a2f3b6
--- firmware/App/Controllers/Pressures.c	(.../Pressures.c)	(revision 0f4fbb2a56cdbe35dcedd9cad23867fd7248f86e)
+++ firmware/App/Controllers/Pressures.c	(.../Pressures.c)	(revision 79e0b1152e278a3b09d7d93c83a27f8998a2f3b6)
@@ -42,6 +42,7 @@
 #define PUMP_PRESSURE_PSIA_TO_PSI_OFFSET            14.7F                                           ///< Subtract this offset to convert PSIA to PSI.  TODO - use barometric sensor when available.
 #define ONE_BAR_TO_PSI_CONVERSION                   14.5F                                           ///< 1 bar to PSI conversion.
 #define ONE_BAR_TO_MILLI_BAR                        1000                                            ///< 1 bar to milli bar conversion.
+#define COUNTS_TO_MILLI_BAR                         100                                             ///< Counts to milli bar conversion.
 
 #define PRESSURE_SAMPLES_TO_AVERAGE                 ( 200 / TASK_PRIORITY_INTERVAL )                ///< Averaging pressure data over the reporting interval.
 #define PRESSURE_AVERAGE_MULTIPLIER                 ( 1.0F / (F32)PRESSURE_SAMPLES_TO_AVERAGE )     ///< Optimization - multiplying is faster than dividing.
@@ -306,7 +307,7 @@
     msrdPressureSum[ PRESSURE_SENSOR_RO_PUMP_OUTLET ]    += (S32)getIntADCReading( INT_ADC_RO_PUMP_OUTLET_PRESSURE )    - PUMP_PRESSURE_ZERO;
     msrdPressureSum[ PRESSURE_SENSOR_DRAIN_PUMP_INLET ]  += (S32)getIntADCReading( INT_ADC_DRAIN_PUMP_INLET_PRESSURE )  - PUMP_PRESSURE_ZERO;
     msrdPressureSum[ PRESSURE_SENSOR_DRAIN_PUMP_OUTLET ] += (S32)getIntADCReading( INT_ADC_DRAIN_PUMP_OUTLET_PRESSURE ) - PUMP_PRESSURE_ZERO;
-    msrdPressureSum[ PRESSURE_SENSOR_BAROMETRIC ]        += (S32)getFPGABaroPressure();
+    msrdPressureSum[ PRESSURE_SENSOR_BAROMETRIC ]        += (S32)( getFPGABaroPressure() & MASK_OFF_U32_MSB );
 
     // Check if a new calibration is available
     if ( TRUE == isNewCalibrationRecordAvailable() )
@@ -439,7 +440,7 @@
     U64 presSensitivity = baroConvConsts.pressureSensitivity * TWO_TO_POWER_OF_16;
     U64 sensitivity     = tempSensitivity + presSensitivity;
     S32 pres            = (S32)( ( ( adcSum * sensitivity ) / TWO_TO_POWER_OF_21 ) - offset ) / TWO_TO_POWER_OF_15;
-    F32 presPSI         = ( (F32)pres / (F32)ONE_BAR_TO_MILLI_BAR ) * ONE_BAR_TO_PSI_CONVERSION;
+    F32 presPSI         = ( (F32)pres / (F32)( COUNTS_TO_MILLI_BAR * ONE_BAR_TO_MILLI_BAR ) ) * ONE_BAR_TO_PSI_CONVERSION;
 
     return presPSI;
 }