All industrial on-line ph meter electrode probes need to be visually inspected once a month on a regular basis and cleaned if necessary, if scaling on the industrial on-line ph meter electrode probes cannot be cleaned with a damp soft cloth the following reagents can be used:

Non-abrasive household detergents for general scaling.

Scale or metal hydroxides using diluted hydrochloric acid approx. 0.1%-3% for 1-5 minutes.

Industrial in-line ph meter electrode probes must be rinsed thoroughly after cleaning.

If the ceramic diaphragm of a later installed reference electrode becomes clogged it can be cleaned in the same way as the glass electrodes of the Industrial In-Line Ph Meter, in addition it can be carefully scraped off but care must be taken not to scratch the diaphragm.