TPS pH Cube - Temperature Compensation in pH Sensing

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7.2.3 Temperature Compensation
The slope of a pH sensor (section 7.2.2) is affected by temperature. This effect is
compensated for either by using an Automatic Temperature Compensation
(ATC) sensor or by entering the sample temperature manually. Figure 7-3 shows
the slope of a pH sensor at various temperatures.
-600
-400
-200
0
200
400
600
0 7 14
Electrode
Potential (mV) at
0 oC (54mV/pH)
Electrode
Potential (mV) at
50 oC (64mV/pH)
Electrode
Potential (mV) at
100 oC (74mV/pH)
pH Electrode Response, as a Function of Temperature
Electrode Response (mV)
pH
Figure 7-3