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8.2.1. “FAST” MODE
“FAST” MODE allows the calibration of the pH-electrode when there are small reading deviations
with no need to extract the sensor from the installation or to use calibration solutions.
PROCEDURE:
• Be sure the point of insertion of the pH-sensor is ooded, and the pump is in
recirculation.
• Using a pH-test kit, measure the water pH of the swimming pool.
• Press the
“CAL” [18] key for approx. 5 seconds. The pH [15] screen will blink “7.0”.
• Keep the
“SET” [24] key pressed until the pH-value previously measured in the water
with the pH-test kit appears. Once reached, loosen and press “CAL” [18] key. If no
error has been detected, the system will have been calibrated.
5 seconds
8.2.2. “STANDARD” MODE
“STANDARD” MODE allows the precise calibration of the pH-sensor using two calibration
solutions of pH 7.0 and 4.0, however this method requires that the pH-sensor is removed from
the installation.
PROCEDURE:
IMPORTANT: before closing the by-pass valves, stop system from control panel as
described in section 7.7.1.
1. Extract the pH-sensor from the holder and wash it with abundant tap water.
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