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8
3.7.10.
Calibrating the pH probe
→
The original pH probe is already calibrated. It is therefore not necessary to carry out calibration when putting the
equipment into service for the first time.
I
However, it is imperative to carry out a calibration of the pH and ORP probes at the beginning of each
season when returning to service, and after each probe replacement.
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 supplied.
If the probe is not already installed :
Connect the probe to the electronics unit.
4)
Turn on the electronics unit.
5)
Go to the
«
.
Ca
.
»
menu : the message
« 7.0 »
flashes.
6)
Insert the probe into the pH 7 calibration solution, then wait a few minutes.
7)
Press on
OK
: do not touch the probe, and wait until the message
« 10 »
flashes.
8)
Rinse the probe under running water, then leave to drip-dry it without wiping it.
9)
Insert the probe into the pH 10 calibration solution, then wait a few minutes.
10)
Press on
OK
: do not touch the probe, and wait until you get one of the displays shown below.
11)
2 possibilities :
•
The message
«
X
»
appears :
The calibration has failed. Press on
OK
, then carry out a new calibration, several times if necessary. If
calibration still fails, replace the probe and carry out another calibration.
•
The message
«
»
appears :
The calibration was successful.
a)
Rinse the probe under running water, then leave to drip-dry it without wiping it.
b)
Install the probe into the probe holder.
c)
Press on
OK
.
3.7.11.
Activation/deactivation of pH regulation
Menu
Possible settings
Default setting
Mo
•
ON
(to activate)
•
OF
(to deactivate)
ON
3.7.12.
Manual injection
Menu
Functions
Possible settings
Default
setting
Instructions
Ma
•
Priming of the
peristaltic
pump
and filling of semi-
rigid pipes.
•
pH
corrector
injection.
•
Means of checking
the
correct
operation of the
peristaltic pump.
•
From
01
to
60
(s), in increments of 1.
•
From
1.1
to
1.5
(mn), in increments of 0.1.
•
From
2.0
to
2.5
(mn), in increments of 0.1.
•
From
3.0
to
3.5
(mn), in increments of 0.1.
•
From
4.0
to
4.5
(mn), in increments of 0.1.
•
From
5.0
to
5.5
(mn), in increments of 0.1.
•
From
6.0
to
6.5
(mn), in increments of 0.1.
•
From
7.0
to
7.5
(mn), in increments of 0.1.
•
From
8.0
to
8.5
(mn), in increments of 0.1.
•
From
9.0
to
9.5
(mn), in increments of 0.1.
60
•
To start injecting :
Confirm the duration
setting (the peristaltic
pump is running).
•
To take a break, and to
restart the injection :
Press on
OK
.
•
To stop the injection :
Press on .
Summary of Contents for UNO
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