S I G N A T U R E
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ERROR MESSAGES:
If the calibration process is interrupted for whatever reason, the pH-controller
will automatically leave the calibration mode if the intervention of the user is not
detected in a few seconds. In this case,
“E1”
indication in the display
[15]
will
appear.
If the pH value during the calibration process is very different from the expected
one, (e.g., defective sensor, etc.), display
[15]
will indicate
“E2”
, not allowing
calibration.
If the pH measure is unstable during the calibration process, code
“E3”
will appear in display
[15]
. In addition, the pH-sensor calibration will not be
allowed.
8.3. CALIbRATION OF THE ORP SENSOR
The calibration frequency of the controller will be determined in each particular application.
Nevertheless, we recommend making it at least, once a month during the use period of the
pool. The ORP controller has an automatic calibration system for the ORP sensors based on
the utilisation of a 470 mV reference solution.
