3.7.9.
Calibrating the pH probe
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 electronic unit.
5)
6) Follow the instructions below:
OK
OK
(Wait a few seconds)
OK
(Wait a few seconds)
or
3.7.10. Activation/deactivation of pH regulation
Menu
3.7.11. Manual pH injection
Menu
Priming of the peristaltic
pump and filling of semi-
rigid pipes
pH corrector injection
Means
correct operation of the
peristaltic pump
Insert the probe into the pH 7 calibration solution, then wait a few minutes.
Do not touch the probe.
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.
a) Rinse the probe under running water, then leave it to drip-dry without wiping it.
b) Install the probe into the probe holder.
Perform the navigation again with the above instructions, several times if necessary.
If calibration still fails, replace the probe then perform another calibration.
Possible settings
ON (to activate)
OFF (to disable)
Functions
of
checking
the
Setting
Possible settings
by default
From 30 s to 10
min,
in 30 s
increments
Default setting
ON
Instructions
To start injecting:
Confirm the selected setting.
(The peristaltic pump is
running,
countdown is displayed in
real time.)
1 min
To pause,
and to restart injection:
Press OK.
To stop injection:
Press
.
and
the
timer
13