Decommissioning - ProMinent DULCOTEST PER 1-mA-50 ppm Mode D'emploi

Decommissioning

the sensor
ProMinent ®
11 Decommissioning
CAUTION
• Before removing the sensorl, switch off any peripheral
control equipment completely or switch to manual
operation. When the sensor is deactivated, an incorrect
measured value can occur on starting the control/
measuring equipment and can lead to uncontrolled metering
in a control system.
• De-pressurise the system when removing the sensor! To do
this you should close the stop valve in front of and behind
the in-line probe housing. If the sensor is removed under
pressure, liquid could leak out.
• In an emergency, cut the power supply to the controller! In
case any liquid leaks out of the in-line probe housing (DGM/
DLG III), close the inlet and outlet stop valves as installed by
the customer.
• Before opening the DGM/DLG III, observe the safety instruc-
tions in the system operating instructions!
• You should also observe the safety instructions in section
6 assembly.
Disconnect the sensor from the power supply (see section 7
installation).
De-pressurise the in-line probe housing.
Loosen the locking screw on the in-line probe housing.
Slowly remove the sensor from the in-line probe housing.
Unscrew and empty the diaphragm cap over a washbasin, or
similar.
Discard diaphragm cap,
Thoroughly rinse the electrodes in clean, warm water and let dry
dust-free,
Screw on loosely a new diaphragm cap to protect the electrodes,
Put on the diaphragm protection cap to protect the diaphragm
cap.
Decommissioning
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