seko Pool Basic Pro Evo Handbuch Seite 19

9.4 ON/OFF pH/Redox dosing
The instrument allows the chemical measurement to be controlled and modified through the
pH Set Point automatically; adjusting the dosing though the pH motor controlled in ON/OFF.
The dosing below is obtained by setting the following parameters:
 Set point pH = 7.20 pH
 Type of Dosing = Alkaline
Set Point pH
Motore pH
9.5 Alarm for the pH/Redox Set Point
When the alarm band is set, a work window is created. If the allowed limits are exceeded the alarm relay closes
and remains closed until the measurement is reset or the enter key is pressed to deactivate the alarm.
When the OFA time (Over Feed Alarm) is set, the dosing time of Set Point pH/Redox in time is controlled with
two alarms:
 First alarm at 70% of the time set is seen on the display, the alarm relay closes.
 Second alarm at 100% of the time set is seen on the display and the alarm relay closes and the
pH/Redox motor is blocked.
Press the Enter key to eliminate the alarm and initialise the OFA time.
ALR Band
Set Point pH
ALR Band
Motore pH
ALR Relè
Note: The operation is the same for the pH-/pH+.
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