Chapter 15 Maintenance and troubleshooting
15.1 Maintenance
192 HORIBA
● Washing electrodes
If the tip of the pH electrode is extremely dirty, the speed of its response may slow and it may
cause errors in measurement. If the electrode is so dirty that it cannot be cleaned by rinsing
with pure (de-ionized) water, wash the electrode using the method below that is most appro
-
priate.
General dirt & oily grime
Wipe the dirt/grime off using cotton gauze that contains a neutral detergent.
Inorganic grime
Rinse using a hydrochloric acid solution of approximately 1 mol/L or a washing #220.
Be sure not to soak the electrode in strong acid for a long period of time.
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