Idegis DOM-12, Hardware Installation And Maintenance Manual

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5.5. Integrated pH controller (DOM-XXPH)
The integrated pH / ORP controller is supplied with a default factory calibration and programmed with the following parameters:
SETPOINT pH=”7.2” / ORP=”700 mV”
IMPORTANT: In order to have a correct regulation of the pH value, the Total Alkalinity of the pool water must be maintained in the range
60–120 ppm CaCO
3
. Use a pool water test kit to check the Total Alkalinity and adjust manually if necessary.
5.5.1. CONNECTION OF THE PH / ORP SENSORS (models DOM-XX PH and DOM-XX PLUS)
Connect the pH / ORP sensor provided with the unit to the corresponding BNC connectors located in the unit’s base (Fig. 26).
5.5.2. CONNECTION OF THE DOSAGE PUMP
The DOMOTIC Series systems (DOM-XXPH and DOM-XX PLUS) have a connector on their base for connecting a dosage pump to control
the pH of the water in the pool. The dosage pump can be connected through the CEE22 connector supplied for that purpose with the
equipment (Fig. 26).
Fig. 26
5.5.3. PH SETPOINT PROGRAMMING
Keep the “SET” [20] key pressed until the screen [18] displays the desired pH value within the 7.0 – 7.8 range. Release after selection.
Fig. 27