Index: firmware/App/Controllers/PresOccl.c
===================================================================
diff -u -rfcb9a1dce7d9b2de3ff0b725282d4ea3ddf14b1d -r9c970f6c10aaa43eed47bf94d51e789427b34cca
--- firmware/App/Controllers/PresOccl.c	(.../PresOccl.c)	(revision fcb9a1dce7d9b2de3ff0b725282d4ea3ddf14b1d)
+++ firmware/App/Controllers/PresOccl.c	(.../PresOccl.c)	(revision 9c970f6c10aaa43eed47bf94d51e789427b34cca)
@@ -65,8 +65,6 @@
 #define VENOUS_PRESSURE_MAX_MMHG            ( 2000.0 )                                      ///< Maximum venous pressure reading (in mmHg) for range check.
 #define VENOUS_PRESSURE_MIN_MMHG            ( -1500.0 )                                     ///< Minimum venous pressure reading (in mmHg) for range check.
 
-#define MIN_OCCLUSION_COUNTS                ( 2000 )                                        ///< Minimum occlusion sensor reading for range check.
-
 #define PSI_TO_MMHG                         ( 51.7149 )                                     ///< Conversion factor for converting PSI to mmHg.
 
 #define VENOUS_PRESSURE_NORMAL_OP           0                                               ///< Venous pressure status bits indicate normal operation.
@@ -676,7 +674,7 @@
     if ( getSoftwareConfigStatus( SW_CONFIG_DISABLE_PRESSURE_CHECKS ) != SW_CONFIG_ENABLE_VALUE )
     {
         // Range check occlusion sensor
-        if ( TRUE == isPersistentAlarmTriggered( ALARM_ID_HD_BP_OCCLUSION_OUT_OF_RANGE, bpOccl < MIN_OCCLUSION_COUNTS ) )
+        if ( TRUE == isPersistentAlarmTriggered( ALARM_ID_HD_BP_OCCLUSION_OUT_OF_RANGE, outOfRange ) )
         {
             SET_ALARM_WITH_1_U32_DATA( ALARM_ID_HD_BP_OCCLUSION_OUT_OF_RANGE, bpOccl );
         }
@@ -687,7 +685,7 @@
             signalBloodPumpHardStop();  // Stop pump immediately
             SET_ALARM_WITH_1_U32_DATA( ALARM_ID_OCCLUSION_BLOOD_PUMP, bpOccl )
         }
-        else if ( bpOccl < ( OCCLUSION_CLEAR_THRESHOLD_OFFSET + bloodPumpOcclusionAfterCartridgeInstall ) )
+        else if ( bpOccl <= ( OCCLUSION_CLEAR_THRESHOLD_OFFSET + bloodPumpOcclusionAfterCartridgeInstall ) )
         {
             clearAlarmCondition( ALARM_ID_OCCLUSION_BLOOD_PUMP );
         }