Index: firmware/App/Controllers/PresOccl.c
===================================================================
diff -u -rda7e8c1b71db9273f83e9d0ba7d20e74e758a8ad -red4d9f0a8493695e63d4b226d1c3d885a00b7565
--- firmware/App/Controllers/PresOccl.c	(.../PresOccl.c)	(revision da7e8c1b71db9273f83e9d0ba7d20e74e758a8ad)
+++ firmware/App/Controllers/PresOccl.c	(.../PresOccl.c)	(revision ed4d9f0a8493695e63d4b226d1c3d885a00b7565)
@@ -883,12 +883,12 @@
             SET_ALARM_WITH_1_U32_DATA( ALARM_ID_HD_BP_OCCLUSION_SELF_TEST_FAILURE, bpPressure );
         }
 
-        if ( ( arterialPressure <= ARTERIAL_PRESSURE_SELF_TEST_MIN ) || ( arterialPressure >= ARTERIAL_PRESSURE_SELF_TEST_MAX ) )
+        if ( ( arterialPressure < ARTERIAL_PRESSURE_SELF_TEST_MIN ) || ( arterialPressure > ARTERIAL_PRESSURE_SELF_TEST_MAX ) )
         {
             SET_ALARM_WITH_1_U32_DATA( ALARM_ID_HD_ARTERIAL_PRESSURE_SELF_TEST_FAILURE, arterialPressure );
         }
 
-        if ( ( venousPressure <= VENOUS_PRESSURE_SELF_TEST_MIN ) || ( venousPressure >= VENOUS_PRESSURE_SELF_TEST_MAX ) )
+        if ( ( venousPressure < VENOUS_PRESSURE_SELF_TEST_MIN ) || ( venousPressure > VENOUS_PRESSURE_SELF_TEST_MAX ) )
         {
             SET_ALARM_WITH_1_U32_DATA( ALARM_ID_HD_VENOUS_PRESSURE_SELF_TEST_FAILURE, venousPressure );
         }
@@ -912,7 +912,7 @@
     {
         U32 const bpPressure = getMeasuredBloodPumpOcclusion();
 
-        if ( ( bpPressure <= CARTRIDGE_LOADED_THRESHOLD ) || ( bpPressure >= OCCLUSION_CARTRIDGE_LOADED_PRESSURE_READING_MAX ) )
+        if ( ( bpPressure < CARTRIDGE_LOADED_THRESHOLD ) || ( bpPressure > OCCLUSION_CARTRIDGE_LOADED_PRESSURE_READING_MAX ) )
         {
             activateAlarmNoData( ALARM_ID_NO_CARTRIDGE_LOADED );
             result = SELF_TEST_STATUS_FAILED;