Recalibrate the probe again.
If well maintained, a probe can last for two or three years.
The probe should never be left to dry. If it is kept outside the installation, the
original cap should be placed, or it should be submerged in a glass of water. If
a probe has been left to dry, it can be regenerated by leaving it for 12 hours in
a glass of water, preferably adding a few drops of hydrochloric acid.
5.4- Checking and maintenance of the Amperometric probe
(PRO/2 kit)
Please, read carefully the 3.5.2 section of this manual.
To locate any possible problems, you can follow the recommendations in the
following table:
PROBLEMS
Reading = 0, does not
coincide with the DPD-
1 measurement
Reading below the
DPD-1 measurement
Manual EVO v.4
CAUSE
Failure in the connection of
the sensor with the controller
Insufficient flow in the sensor
holders or the chlorine sensor
is not in contact with the
water
There are air bubbles in the
measuring zone of the sensor
The sensor has been a
number of hours measuring
the water without free
chlorine
Insufficient flow in the sensor
holders
SOLUTION
Check connections
Adjust the flow reaching the sensor
holders. Clean the filter and the flow
regulator of the sensor holders
Bleed the sensor holder and ensure
that there is no air remaining in the
measuring zone.
Let water containing free chlorine
circulate through the sensor holders for
1 hour.
Adjust the flow reaching the sensor
holders. Clean the filter and the flow
regulator of the sensor holders.
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