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 ORP
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 display
[20]
will appear.
If the ORP value during the calibration process is very different from the
expected one, (e.g., defective sensor, etc.), display
[20]
will indicate
“E2”
,
not allowing calibration.
If the ORP measure is unstable during the calibration process, code
“E3”
will appear in display
[20]
. In addition, the sensor calibration will not be
allowed.
8.4. MAITENANCE OF THE PH/ORP SENSORS
. Ensure that the sensor membrane remains moist at all times.
. If the sensor is not going to be used for a long period, keep it submerged in a conservation
solution at pH=4.0.
3. To clean the sensor of possible dirt, avoid the use of abrasive materials that can scratch the
sensor surface.
4.
The pH/ORP sensors are a consumable part, so it must be replaced periodically.
