9
2.7.
pH regulation
2.7.1. Calibrating the pH probe
The original pH probe provided is already calibrated. It is therefore not necessary to calibrate the pH probe when
putting the equipment into service for the first time.
I
However, the pH sensor must be calibrated:
-
at the start of each season when the equipment is re-commissioned,
-
each time the pH probe is replaced.
1)
Open the pH 7 and pH 10 calibration solutions (use only single-use calibration solutions).
2)
Turn off the filtration (and therefore the electronics unit).
3)
If the probe is already installed:
a) Remove the probe from the probe holder, without disconnecting it.
b)
Remove the probe holder nut and replace it with the stopper provided.
If the probe is not already installed:
Connect the probe to the electronics unit.
4)
Turn on the electronics unit.
5)
6)
Navigate through the menus following the below instructions:
Insert the probe into the pH 7 calibration solution, then wait a few minutes.
Do not touch the probe.
(Wait a few seconds)
Perform the navigation again with the above instructions, several times if necessary.
If calibration still fails, replace the probe then perform another calibration.
or
a) Rinse the probe under running water, then leave it to drip-dry without wiping it.
b) Insert the probe into the pH 10 solution, then wait for a few minutes.
Do not touch the probe.
(Wait a few seconds)
a) Rinse the probe under running water, then leave it to drip-dry without wiping it.
b) (Re)install the probe into the probe holder.
or
Perform the navigation again with the above instructions, several times if necessary.
If calibration still fails, replace the probe then perform another calibration.
2.7.2.
Specification of the pH corrector type
Menu
Possible settings
Meaning
Default setting
Acid
pH-
Acid
Basic
pH+
2.7.3.
Specification of the concentration of the pH corrector
Menu
Possible settings
Default setting
From 5 to 55 %, in steps of 1 %
37 %
OK
OK
OK
