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Options and accessories / 8. maintenance, Maintenance – WIKA DPGT40 User Manual

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GB

WIKA operating instructions differential pressure transmitter, model DPGT40

18

14093267.01 03/2014 GB/D/F/E

7. Options and accessories / 8. Maintenance

Sequence of operations to finish measurement (also temporary shutdown)

1. Open the pressure compensating valve

2. Close the shut-off valve for the ⊕ and ⊖ media chamber

Sequence of operations to dismount the measuring instrument with a running

process

1. Close the shut-off valve for the ⊕ and ⊖ media chamber

2. Open the vent valve

7.2 Panel mounting flange

14078276.01

Panel

Cutout

8. Maintenance

The instruments are maintenance-free.

The indicator and switching function should be checked once or twice every year.

For this the instrument must be disconnected from the process to check with a

pressure testing device.
Repairs must only be carried out by the manufacturer.