pH Replacement Probes
Probes must be installed within 45° of vertical with tip pointed down.
Electrode cleaning of pH and ORP probes:
Coating of an electrode’s measuring surface can lead to erroneous readings including shortened span and slow response times. The type of coating determines the type of cleaning technique.
Soft Coatings can be removed by vigorous stirring, by use of a squirt bottle, or very carefully, by gently wiping with a soft cloth, clean non-abrasive paper or cloth. DO NOT USE ANY BRUSH OR ABRASIVE CLEANER ON pH GLASS!
When to use a remote transmitter:
pH and ORP probes require a remote transmitter if the wire run from the probe to the controller is beyond 20 feet (6 meters).