Instruction and Operator's Manual PICO pH
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4.0 ALARM « ALR »
The alarm is activated when the pH value is too low or too high.
• ALr ≤ pH5
• ALr ≥ pH9
• The controller no longer doses.
Readjust the water parameters manually to return to a pH between pH 5.1 and pH 8.9. The unit will resume
dosing.
5.0 INCORRECT MEASUREMENT AND SOLUTIONS
5.1 Incorrect measurement
If the measurement displayed on the device differs from the value obtained by another control method
(drops, strip, photometer): check if the TAC (Total Alkalinity Content) is greater than 100 mg/l.
5.2 TAC increase procedure
For having a stable pH: 80 mg/l < TAC < 120 mg/l
To add TAC to your pool, follow the procedure below:
• Switch off pH and chlorine regulator.
• Add the amount of TAC specified on the packaging to the pool. It's best to raise the TAC to 120
mg/l in one go.
• Wait 4 hours for complete dissolution.
• Switch on PICO pH pump.
• When pH < 7.8, restart your chlorine disinfection system.
6.0 MAINTENANCE
To preserve the quality of your device, we recommend (*) that you replace the following wearing parts:
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