Index: firmware/App/Controllers/DGInterface.c
===================================================================
diff -u -rd4a90fda6c1f463633a4e7d45424acd2d2a0bce8 -rfbdff223ca110491c6f7776669fa46ac5fc56da4
--- firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision d4a90fda6c1f463633a4e7d45424acd2d2a0bce8)
+++ firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision fbdff223ca110491c6f7776669fa46ac5fc56da4)
@@ -35,7 +35,10 @@
 #define RESERVOIR_SETTLE_TIME_MS            5000                ///< Time (in ms) allotted for reservoir to settle (after fill, before drain).
 
 #define SIZE_OF_SMALL_LOAD_CELL_AVG         8                   ///< Small load cell moving average has 8 samples.
-#define SIZE_OF_LARGE_LOAD_CELL_AVG         32                  ///< Large load cell moving average has 32 samples.
+#define SIZE_OF_LARGE_LOAD_CELL_AVG         32                  ///< Large load cell moving average has 32 samples.
+
+#define MAX_LOAD_CELL_CHANGE_G              70.0                ///< Maximum delta between new load cell sample and its small moving average (in g).
+#define MAX_ACTIVE_LOAD_CELL_CHANGE_G       30.0                ///< Maximum delta between new load cell sample and its small moving average (in g) when associated reservoir is active in treatment.
 
 /// States of the treatment reservoir management state machine.
 typedef enum TreatmentReservoirMgmt_States
@@ -654,6 +657,8 @@
 void setNewLoadCellReadings( F32 res1Primary, F32 res1Backup, F32 res2Primary, F32 res2Backup )
 {
     DG_RESERVOIR_ID_T res;
+    DG_RESERVOIR_ID_T activeRes = getDGActiveReservoir();
+    BOOL inTreatment = ( MODE_TREA == getCurrentOperationMode() ? TRUE : FALSE );
 
     loadCellWeightInGrams[ LOAD_CELL_RESERVOIR_1_PRIMARY ].data = res1Primary;
     loadCellWeightInGrams[ LOAD_CELL_RESERVOIR_1_BACKUP ].data = res1Backup;
@@ -663,8 +668,31 @@
     // feed new weight samples into filters and update moving averages
     for ( res = DG_RESERVOIR_1; res < NUM_OF_DG_RESERVOIRS; res++ )
     {
-        F32 wt = ( res == DG_RESERVOIR_1 ? res1Primary : res2Primary );
+        F32  wt = ( res == DG_RESERVOIR_1 ? res1Primary : res2Primary );
+#ifndef DISABLE_UF_ALARMS
+        F32  delta = fabs( smFilteredReservoirWeightInGrams[ res ] - wt );
+        BOOL deltaAlarmDetected = FALSE;
+        ALARM_ID_T deltaAlarm = ( res == DG_RESERVOIR_1 ? ALARM_ID_HD_LOAD_CELL_ACCELERATION_RES_1_ALARM : ALARM_ID_HD_LOAD_CELL_ACCELERATION_RES_2_ALARM );
 
+        // Check for excessive load cell acceleration
+        if ( ( TRUE == inTreatment ) && ( res == activeRes ) && ( delta > MAX_ACTIVE_LOAD_CELL_CHANGE_G ) )
+        {
+            deltaAlarmDetected = TRUE;
+        }
+        else if ( delta > MAX_LOAD_CELL_CHANGE_G )
+        {
+            deltaAlarmDetected = TRUE;
+        }
+        // Trigger or clear excessive load cell acceleration condition
+        if ( TRUE == deltaAlarmDetected )
+        {
+            SET_ALARM_WITH_2_F32_DATA( deltaAlarm, wt, smFilteredReservoirWeightInGrams[ res ] );
+        }
+        else
+        {
+            // clearAlarmCondition( deltaAlarm );  TODO - un-comment when merged with branch that has this function implemented.
+        }
+#endif
         smLoadCellReadingsTotal[ res ] -= smLoadCellReadings[ res ][ smLoadCellReadingsIdx ];
         lgLoadCellReadingsTotal[ res ] -= lgLoadCellReadings[ res ][ lgLoadCellReadingsIdx ];
         smLoadCellReadings[ res ][ smLoadCellReadingsIdx ] = wt;