EF315_r5.1(v12.22) – 03/2023 page 14
PARAMETER 02 DOSAGE DIRECTION PUMP 1 (pH)
Swimming pool water normally needs to be acidified, and therefore set P02=0.
You can rarely have an acid replenishment water, and therefore p=2 is set to 1 to alkalize.
PARAMETER 03 THRESHOLD PUMP 1 (pH)
Enter the pH value to be reached.
PARAMETER 04 HYSTERESIS or PROPORTIONAL BAND for PUMP 1 (pH)
The meaning of this parameter depends on the controller configuration. Recommended values:
- ON-OFF control: this parameter is used to define the “no intervention” window for the relay, normally
set quite narrow, of about 0.15 … 0.30 pH.
- Proportional control: this parameter sets the proportional band, typically between 0.30 and 0.50 pH.
PARAMETER 05 DOSING FREQUENCY or PERCENTAGE of PUMP 1 (pH)
The meaning of this parameter depends on the configuration of the control unit. In particular:
- Out 1 for electromagnetic pump and ON-OFF control: dosing frequency, pulses/minute
- Out 1 for electromagnetic pump and proportional control: max dosing frequency, pulses/minute
- Out 1 for peristaltic pump and ON-OFF control: dosing percentage
- Out 1 for peristaltic pump and proportional control: max dosing percentage (PWM)
PARAMETER 06 ALARM MAX DOSING TIME PUMP 1 (pH)
This parameter allows to enter a limit for the maximum dosing time of the pump (hours : minutes).
When measurement deviates from the set threshold and the dosage starts, simultaneously starts this
timer. If measurement does not return to the threshold value before the set time has elapsed, it means
that something is not working properly and an alarm is generated, which blocks dosage.
The alarm is cancelled automatically reset if measurement returns to the threshold value, or manually
pressing the ON-OFF button.
Note: The precision of this alarm is in minutes, therefore, the intervention normally occurs with a small
delay (max one minute).
Set this parameter to zero means not using this feature.
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