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Pr
o
Minent
®
11
Decommissioning
CAUTION
•
Switch off secondary control systems or switch them
to manual operation before dismantling the sensor.
A defective sensor results in an incorrect measured value,
which may cause dangerous overdosing within a control
system.
•
Depressurise the system before dismantling the sensor.
Close the stop valves before and after the in-line probe
housing. Liquid will leak out when the sensor is dismantled
under pressure.
•
In case of an emergency, first disconnect the controller
from the power supply. If liquid leaks out from the in-line
probe housing (DGM/DLGIII), close the stop valves at the
inlet and outlet of the sample water.
•
Before opening the DGM/DLGIII observe on-site safety
guidelines.
•
Additionally follow all of the safety instructions in
Chapter 6 “Assembly”.
Decommissioning
sensor
왘
Disconnect the sensor electrically (compare Chapter 7 “Installation”).
왘
Depressurise the in-line probe housing.
왘
Screw off the plug of the in-line probe housing.
왘
Slowly pull out the sensor from the in-line probe housing.
왘
Screw off the membrane cap over a sink, empty it and throw it away.
왘
Rinse the electrodes thoroughly in clean, warm water and allow to dry.
왘
Screw on a new membrane cap loosely to protect the electrodes.
왘
Put on the membrane's protective cap.
12
Repairs
The sensor can be repaired only at the factory. Send it back in its original
packaging. Prepare it for the repairs (as described in Chapter 11
“Decommissioning”).
13
Disposal
IMPORTANT
Please observe the applicable national regulations.
You may return the decontaminated used equipment to ProMinent
Dosiertechnik GmbH, Heidelberg, against prepaid postage.
Decommissioning / Repairs / Disposal
BA_DT_106_12_09_4spr.p65
15.12.2009, 10:26 Uhr
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