Index: firmware/App/Controllers/BloodFlow.c
===================================================================
diff -u -r933a18d740285e70be9d00696ed0f5a5381bc8e4 -r40a0bc77c53a4eb538580d44f1117d26f1d37fb2
--- firmware/App/Controllers/BloodFlow.c	(.../BloodFlow.c)	(revision 933a18d740285e70be9d00696ed0f5a5381bc8e4)
+++ firmware/App/Controllers/BloodFlow.c	(.../BloodFlow.c)	(revision 40a0bc77c53a4eb538580d44f1117d26f1d37fb2)
@@ -101,7 +101,7 @@
 #define SIZE_OF_ROLLING_AVG                 ( ( MS_PER_SECOND / TASK_PRIORITY_INTERVAL ) * 10 )
 
 /// blood flow sensor signal strength low alarm persistence.
-#define FLOW_SIG_STRGTH_ALARM_PERSIST       ( ( MS_PER_SECOND / TASK_PRIORITY_INTERVAL ) * 5 )
+#define FLOW_SIG_STRGTH_ALARM_PERSIST       ( 5 * MS_PER_SECOND )
 #define MIN_FLOW_SIG_STRENGTH               0.9             ///< Minimum flow sensor signal strength (90%).
 
 /// Enumeration of blood pump controller states.