Index: firmware/App/Controllers/ConductivitySensors.h
===================================================================
diff -u -ref4bc1eaa0f019b678b4d49011a5d23ebe558ad8 -re9036ee8e37aa4f6709e6b3ad5578e2baa51c8f9
--- firmware/App/Controllers/ConductivitySensors.h	(.../ConductivitySensors.h)	(revision ef4bc1eaa0f019b678b4d49011a5d23ebe558ad8)
+++ firmware/App/Controllers/ConductivitySensors.h	(.../ConductivitySensors.h)	(revision e9036ee8e37aa4f6709e6b3ad5578e2baa51c8f9)
@@ -38,6 +38,11 @@
 #define MIN_BICARB_CONCENTRATE_CONDUCTIVITY             13048.14                                    ///< Minimum conductivity for bicarbonate concentrate 13734.88 - 5%.
 #define MAX_BICARB_CONCENTRATE_CONDUCTIVITY             14421.62                                    ///< Maximum conductivity for bicarbonate concentrate 13734.88 + 5%.
 
+#define ACID_NORMAL_CONDUCTIVITY                        11645.05                                    ///< Acid normal operation theoretical conductivity.
+#define BICARB_NORMAL_CONDUCTIVITY                      13734.88                                    ///< Bicarb normal operation theoretical conductivity.
+
+
+
 /// Enumeration of conductivity sensors.
 typedef enum ConductivitySensors
 {