Posi-Chlor® Salt Water Chlorinator Owner’s Manual
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4. START-UP AND ADJUSTMENTS
A 60 seconds countdown will start (remaining time is shown on the 3rd line). Keep the probe
in the solution until it finishes. When the countdown is finished, you will be asked to use
the pH4 solution. Remove the probe from ph7, shake off the liquid and stir it again in water.
Shake it again to remove the water and dry it with a clean cloth. Submerge it to the ph4
solution.
Press OK and wait again for a 60 seconds countdown.
After the countdown, if the calibration is successful, a “Calibration OK” message will be
shown. Press OK to exit.
In case of getting a “calibration NO OK”, the unit will keep the previous calibration. Please
check the probe conditions, and clean it or replace it if necessary. Another cause for a
failed calibration can be that the ph7/pH4 solutions are in bad conditions.
Repeat the calibration when the problem is solved.
ATTENTION: It is required to do a pH probe calibration during the equipment
installation. New calibration should be done on changing or cleaning the
probe.
4.5.3 Switching the pH Adjustment On and Off
To switch off or start-up the pH control again stopping the acid pump, access the main
menu, select "pH" in the last line. In the pH menu select the bottom line. By pressing "OK", it
alternatively passes from "pH ON" to "pH OFF".
When the pH control is off, the 3rd line of the screen displaying the parameters indicates
"pH OFF".
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