Index: firmware/App/Controllers/ConductivitySensors.h
===================================================================
diff -u -r969ec174d1d6254ef5b7f90723d5b5313cfa3932 -r63215f2052a66ecb3e0355bad0ec99b4db335fff
--- firmware/App/Controllers/ConductivitySensors.h	(.../ConductivitySensors.h)	(revision 969ec174d1d6254ef5b7f90723d5b5313cfa3932)
+++ firmware/App/Controllers/ConductivitySensors.h	(.../ConductivitySensors.h)	(revision 63215f2052a66ecb3e0355bad0ec99b4db335fff)
@@ -45,13 +45,9 @@
  */
 
 // ********** public definitions **********
+#define ACID_NORMAL_CONDUCTIVITY                        11645.05                                    ///< Acid normal operation theoretical conductivity.
+#define BICARB_NORMAL_CONDUCTIVITY                      13734.88                                    ///< Bicarb normal operation theoretical conductivity.
 
-#define MIN_ACID_CONCENTRATE_CONDUCTIVITY               11062.80                                    ///< Minimum conductivity for acid concentrate 11645.05 - 5%.
-#define MAX_ACID_CONCENTRATE_CONDUCTIVITY               12227.30                                    ///< Maximum conductivity for acid concentrate 11645.05 + 5%.
-
-#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%.
-
 /// Enumeration of conductivity sensors.
 typedef enum ConductivitySensors
 {