Chapter 15 Maintenance and troubleshooting
15.1 Maintenance
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Chapter 15 Maintenance and
troubleshooting
This chapter explains how to perform daily maintenance of the pH meter and how to
deal with error messages.
Daily maintenance is vital in assuring accurate measurement and preventing breakage
before they occur. Maintenance of the electrodes is especially important; if ignored,
various problems and erroneous measurements may result. This pH meter is equipped
with a convenient error message function. If an error message appears, be sure to take
appropriate action.
15.1 Maintenance
15.1.1 pH (ORP) electrode maintenance
Maintain the electrodes by referring to the following information or to the operation
manuals for the electrodes.
pH electrodes (9621-10D) ORP electrodes should be cared for in the same manner.
● Maintenance after daily use
After making measurements, wash the electrode using pure water (de-ionized water), wipe off
water from the electrode with filter or tissue paper, and store it with its cap placed on.
The liquid junction may be clogged if the electrode is left in distilled water or the like.
Injury warning
Glass fragments cause injury.
The outer tube of the electrode and the tip of the
electrode are made from glass. Use care not to
break them.
Caution
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