Index: sources/drydemo/DryDemoDefines.h
===================================================================
diff -u -rbf271a558491a83b39eb30748784f1b744736dd2 -r6c0428ed8c6430924d54d5a42c45c8ec0c16c7c2
--- sources/drydemo/DryDemoDefines.h	(.../DryDemoDefines.h)	(revision bf271a558491a83b39eb30748784f1b744736dd2)
+++ sources/drydemo/DryDemoDefines.h	(.../DryDemoDefines.h)	(revision 6c0428ed8c6430924d54d5a42c45c8ec0c16c7c2)
@@ -14,6 +14,8 @@
 #define NEARLY_ZERO                    0.00000001
 #define ONE_HUNDRED_PCT                100
 #define UI_CONFIRM_RESP_TIMOUT_MS      (SECONDS_PER_MINUTE * MILLISECONDS_PER_SECOND)
+#define RCVD_MSG_PAYLOAD_MIN_LEN       3
+#define RCVD_MSG_SQNC_MIN_LEN          2
 #define RCVD_MSG_MSG_ID_INDEX          0
 #define RCVD_MSG_SQNC_INDEX            1
 #define RCVD_MSG_PAYLOAD_INDEX         2
@@ -64,7 +66,7 @@
 #define MAX_ART_PRES_LIMIT_MMHG         100.0
 #define MIN_VEN_PRES_LIMIT_MMHG         20.0
 #define MAX_VEN_PRES_LIMIT_MMHG         400.0
-#define MIN_TMP_PRES_LIMIT_MMHG        -500.0
+#define MIN_TMP_PRES_LIMIT_MMHG         0.0  //-500.0 In firmware minimum is -500 mmHg
 #define MAX_TMP_PRES_LIMIT_MMHG         100.0
 #define SHORT_MOVING_AVG_SIZE           MILLISECONDS_PER_SECOND / QOBJECT_TIMER_TIMEOUT_MS
 #define PRES_LIMIT_SHORT_STABE_TIME_MS  (10 * MILLISECONDS_PER_SECOND)
@@ -140,6 +142,7 @@
 #define ALARM_REPLACE_BICARB_PROPERTIES   112
 #define ALARM_DIAL_PROPOR_PROPERTIES      10
 #define ALARM_TX_MOD_CHNG_PROPERTIES      2
+#define ALARM_LOW_BICARB_PROPERTIES       112
 
 // Dry bicart defines
 #define DRY_BICART_DRIN_IN_PROGRESS       1
@@ -150,6 +153,13 @@
 #define DRY_BICART_OPEN_SCREEN            1
 #define DRY_BICART_PCT_PROG_TIME_MS       (20 * MILLISECONDS_PER_SECOND)
 
+// HDF defines
+#define HDF_MAX_FILTRATION_FRACTION       0.35
+#define HDF_MAX_TMP                       400.0
+#define HDF_MAX_RATE_MLPM                 200.0
+#define HDF_CONTROL_INT_CTR               (4 * MILLISECONDS_PER_SECOND) / QOBJECT_TIMER_TIMEOUT_MS
+#define HDF_START_RATE_MLPM               50.0
+
 enum User_Command_ID {
     CMD_NONE               = -1,
     CMD_STAND_BY           = 0,
@@ -207,6 +217,7 @@
     RINSEBACK_PAUSED_STATE              = 2,
     RINSEBACK_STOP_STATE                = 3,
     RINSEBACK_RUN_ADDITIONAL_STATE      = 4,
+    RINSEBACK_RECONNECT_PATIENT_STATE   = 5,
 };
 
 enum Requested_Rinseback_User_Actions {
@@ -284,6 +295,11 @@
     HDF_UF_FLUID_BOLUS_STATE                = 2,
 };
 
+enum HDF_Control_States {
+    TD_HDF_PAUSED                           = 0,
+    TD_HDF_RUNNING                          = 1,
+};
+
 // Dry bicart status
 enum Dry_Bicart_Action {
     DRY_BICART_ACTION_DRAIN                = 0,