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Gb 7. maintenance and cleaning, Faults, Maintenance and cleaning – WIKA LH-10 User Manual

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WIKA operating instructions submersible pressure transmitter, model LH-10

14075011.01 08/2013 GB/D/F/E

GB

7. Maintenance and cleaning

7.1 Maintenance

This submersible pressure transmitter is maintenance-free.

Repairs must only be carried out by the manufacturer.

7.2 Cleaning

CAUTION!

Prior to cleaning, switch off and disconnect the submersible pressure transmitter from the voltage

supply.

Clean the instrument with a moist cloth.

Wash or clean the dismounted instrument before returning it, in order to protect persons and the environ-

ment from exposure to residual media.

Residual media in dismounted instruments can result in a risk to persons, the environment and

equipment. Take sufficient precautionary measures.

Do not use any pointed or hard objects for cleaning, as they may damage the diaphragm of the process

connection.

For information on returning the instrument see chapter 9.2 “Return”.

8. Faults

In the event of any faults, first check whether the submersible pressure transmitter is mounted correctly, mechanically

and electrically.

Faults

Causes

Measures

No output signal

Cable break

Check the continuity, and if necessary exchange

the cable

No/wrong power supply

Correct the power supply

No/wrong output signal

Wiring error

Rectify the wiring

7. Maintenance and cleaning