Index: firmware/App/Monitors/Level.c
===================================================================
diff -u -r3ea4def3a3a69a00fb96b6089dbd097fa80041de -rba5c71eab6b1930bfb044a165d803f5c16c3379a
--- firmware/App/Monitors/Level.c	(.../Level.c)	(revision 3ea4def3a3a69a00fb96b6089dbd097fa80041de)
+++ firmware/App/Monitors/Level.c	(.../Level.c)	(revision ba5c71eab6b1930bfb044a165d803f5c16c3379a)
@@ -31,6 +31,10 @@
 #define FPGA_LEVEL_LOW                      2                                                       ///< Floater low level status
 #define FPGA_LEVEL_MEDIUM                   3                                                       ///< Floater medium level status
 #define FPGA_LEVEL_HIGH                     1                                                       ///< Floater high level status
+#define LEVEL_COUNT_LOW                     0x637F                                                  ///< Level sensor count when fluid level is low or non submerged
+#define LEVEL_COUNT_HIGH                    ( LEVEL_COUNT_LOW / 2 )                                 ///< Level sensor count when fluid level is high or submerged
+#define LOW_LEVEL_COUNT_TOLERANCE           ( ( LEVEL_COUNT_LOW / 100 ) * 1 )                       ///< Level sensor count 1% tolerance for low level
+#define HIGH_LEVEL_COUNT_TOLERANCE          ( ( LEVEL_COUNT_HIGH / 100 ) * 1 )                      ///< Level sensor count 1% tolerance for high level
 #define LEVEL_DATA_PUB_INTERVAL             ( MS_PER_SECOND / TASK_PRIORITY_INTERVAL )              ///< Interval (ms/task time) at which the level data is published on the CAN bus.
 #define LEVEL_DEBOUNCE_TIME_MS              ( MS_PER_SECOND / 10 )                                  ///< Level debounce time in milliseconds.
 #define DATA_PUBLISH_COUNTER_START_COUNT    7                                                       ///< Data publish counter start count.
@@ -54,6 +58,7 @@
 // ********** private function prototypes **********
 
 static void publishLevelsData( void );
+static BOOL processLevelCount( U16 count );
 
 /*********************************************************************//**
  * @brief
@@ -122,11 +127,11 @@
                 break;
 
             case BICARB_LEVEL:
-                currentLevelStatus = ( getFPGALevelSensor1() != 0 ? LEVEL_STATE_LOW : LEVEL_STATE_HIGH );
+                currentLevelStatus = ( processLevelCount( getFPGALevelSensor1() ) == 0 ? LEVEL_STATE_LOW : LEVEL_STATE_HIGH );
                 break;
 
             case SPENT_DIALYSATE_LEVEL:
-                currentLevelStatus = ( getFPGALevelSensor2() != 0 ? LEVEL_STATE_LOW : LEVEL_STATE_HIGH );
+                currentLevelStatus = ( processLevelCount( getFPGALevelSensor2() ) == 0 ? LEVEL_STATE_LOW : LEVEL_STATE_HIGH );
                 break;
 
 #ifndef _VECTORCAST_
@@ -217,6 +222,38 @@
 
 /*********************************************************************//**
  * @brief
+ * The processLevelCount function checks the range of count reported by FPGA
+ * and determine level based on the count.
+ * @details \b Inputs: none
+ * @details \b Outputs: level
+ * @param count The level count reported by FPGA
+ * @return level status
+ *************************************************************************/
+static BOOL processLevelCount( U16 count )
+{
+    BOOL level = FALSE;
+
+    // Check the level count with in the low/high level range
+    if ( ( count < LEVEL_COUNT_LOW + LOW_LEVEL_COUNT_TOLERANCE ) &&
+         ( count > LEVEL_COUNT_LOW - LOW_LEVEL_COUNT_TOLERANCE ) )
+    {
+        level = FALSE;
+    }
+    else if ( ( count < LEVEL_COUNT_HIGH + HIGH_LEVEL_COUNT_TOLERANCE ) &&
+              ( count > LEVEL_COUNT_HIGH - HIGH_LEVEL_COUNT_TOLERANCE ) )
+    {
+        level = TRUE;
+    }
+    else
+    {
+        level = FALSE;
+    }
+
+    return level;
+}
+
+/*********************************************************************//**
+ * @brief
  * The publishLevelsData function broadcasts the level data at the
  * publication interval.
  * @details \b Inputs: levelsDataPublicationCounter