Putting The Sensor Into Operation - ProMinent DULCOTEST CLT 1-mA-2 ppm Montage- Und Betriebsanleitung

6

Putting the sensor into operation

User qualification: trained user, see
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CAUTION!
Incorrect metering due to sensor failure
Possible consequence: Slight or minor injuries. Material damage.
– If a sensor fails then there may be an incorrect measured value at the input of the
measuring/control unit.
– This incorrect measured value can lead to uncontrolled metering.
– The operator should therefore ensure that no subsequent damage results from this.
CAUTION!
Incorrect metering due to premature ageing of the sensor
Possible consequence: Slight or minor injuries. Material damage.
Measure: Do not electrically disconnect the sensor during measuring breaks.
Exception: If there is a break between measurements lasting more than a week and the pro‐
portion of disinfectant in the sample water falls during this period to 0 ppm then electrically
disconnect the sensor.
– An extra run in period will be necessary following operation without disinfectant. Switch
on the feeder assembly with a time delay if necessary.
Run in period
The sensor requires a specific run in period to display a steady display value.
Initial commissioning:
Recommissioning:
Electrolyte or diaphragm replacement:
* the exact run in period depends on the application.
Putting the sensor into operation
Ä Chapter 1.2 „User qualification" on page 10
6 ... 12 h
3 ... 6 h
6 ... 12 h
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