Answer

Feb 23, 2025 - 10:40 PM
The Apera 301Pt-S ORP Electrode does not require calibration. However, if you want to double-check the condition of the electrode, you can test it in a standard ORP solution such as 222 mV. If the reading falls within the error range of +/- 15 mV, then the electrode is considered to be in good working condition. Calibration is not necessary for ORP electrodes as they do not have a specific calibration process like pH electrodes.
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