Calibration
BPD17 pH / Redox Monitor
Operating Guide
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Temperature has an effect on the output from the pH electrode as well, so it is important that the
buffer temperature is entered into the Calibration Manual Temperature Input if manual temperature
compensation is being employed. Alternatively, any automatic temperature compensation element
should be placed in the buffer solution with the pH sensor if Auto TC is being used.
Redox Standards
Unlike pH electrodes, the redox electrode’s slope does not change. Nevertheless, incorrect redox
potentials may be occasionally measured and the cause of these errors is usually a contaminated
platinum (Pt) surface, or a contaminated or plugged reference junction. Calibration of a Redox
Electrode is a single point adjustment calibration only.
For calibration and test purposes, standard solutions at various potentials can be purchased from LTH
Electronics:
Part No. 138/175 124mV Redox Solution (500ml)
Part No. 138/176 358mV Redox Solution (500ml)
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