YSI 556 MPS - Manual (Page 135)

Calibration Record Information Appendix H
YSI Incorporated YSI 556 MPS Page 129
•
Conductivity Gain – A relative number which describes the
sensitivity of the sensor. Basically, the value represents the
calculated cell constant divided by the typical value of the cell
constant (5 cm
-1
).
•
DO Gain – A relative number which describes the sensitivity of
the sensor. Basically, the value represents the sensor current at
the time of calibration divided by the typical value of the sensor
current (15 uA).
•
pH Gain – A number which basically represents the sensitivity
of the pH sensor. To remove the effect of temperature on the
slope of the relationship of probe output in mv versus pH, the
value of pH/mv is multiplied by the temperature in degrees
Kelvin (K).
•
pH Offset – A number which basically represents the offset (or
intercept) of the relationship of probe output in mv versus pH,
the value of pH is multiplied by the temperature in degrees
Kelvin (K).
Anytime you perform a calibration, information concerning the calibration
constants will be logged to the Calibration Record file (.glp file). However,
if the Delete All Files command is used, Refer to Section 8.6 Delete All
Files, the Calibration Record file will also be lost. It is critical that this file
should be uploaded to your PC prior to issuing a Delete All Files command.
Refer to Section 8.4 Upload to PC.