Wika 890.09.2190 Manual do Utilizador descarregar pdf (Página 11)

WIKA operating instructions dierential pressure transmitter model 890.09.2190 11

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 specic 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 sucient 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-specic waste disposal

regulations.

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Wika 890.09.2190 Manual do Utilizador Página 11