5 pH option
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5.6
Calibrating the pH electrode
Regular and conscientious calibration of the measurement electrodes is a prerequisite for precise and reliable measurement and regulation.
Perform calibration on initial commissioning or when putting the device back into operation, when changing the water or replacing electrodes, if the
values displayed on the device differ significantly from the readings from the regular manual measurements, after putting in water additives or
following other changes in the water quality and regularly, at least once per month.
TIP
As the first calibration, perform a 2-point calibration with buffer solutions pH 7 and pH 10 in order to calculate the exact electrode
slope.
For regular recalibration (at least once a month), a 1-point calibration will usually be enough. If a photometer is available, recalibration
should be performed based on the pH value of the pool water. If not, carry out recalibration with buffer solution pH 7.
5.6.1
2-point calibration with the two buffer solutions provided (pH 7 and pH 10)
The pH electrode must be removed in order to perform 2-point calibration. Before removing the electrode, please make sure you close the
corresponding valves so that no water can escape.
2-point pH calibration
To set, select pH calibration with
/
and confirm with
2-point calibration
To set, select Buffer (2pt) with
/
and confirm with
The Salt Relax POWER menu will now guide you step by step through the
calibration. Please follow the instructions on the screen
