WIKA 890.09.2190 User Manual
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WIKA operating instructions differential pressure transmitter model 890.09.2190
11
GB
11171545.02 08/2010 GB/D/F/E
6. Commissioning, operation ... 8. Dismounting, return ...
The pressure measuring lines must be as short as possible and should be
arranged without sharp radii in order to avoid any disruptive time lags.
Before commissioning the instrument, check the mechanical connections to
ensure they are leak-tight.
7. Maintenance
The instruments are maintenance-free.
In order to ensure safe and reliable operation and a long service life for the
instrument, we recommend carrying out the following tests at regular intervals:
- Measurement signal test
- Leak-tightness checks at the pressure connection lines
- Electrical connection checks (clamp connection of the cables)
The testing intervals are to be adapted to the specific operating and ambient
conditions. In applications where various instrument components interact,
the operating instructions of all the other instruments involved must also be
observed.
Repairs are only to be carried out by the manufacturer or appropriately trained
skilled personnel.
8. Dismounting, return and disposal
WARNING!
Residual media in dismounted instruments can result in a risk to
persons, the environment and equipment. Take sufficient precau-
tionary measures.
9.1 Dismounting
Only disconnect the pressure gauge once the system has been depressurised!
9.2 Return
All defective or faulty instruments must be sent directly to our repair department.
9.3 Disposal
Incorrect disposal can put the environment at risk.
Dispose of instrument components and packaging materials in an environmentally
compatible way and in accordance with the country-specific waste disposal
regulations.