Wika LS-10 Bedienungsanleitung PDF herunterladen (Seite 13)

13WIKA operating instructions submersible pressure transmitter, model LS-10

14075012.01 08/2013 GB/D/F/E

7.2 Cleaning

CAUTION!

■

Prior to cleaning, switch o 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 sucient 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, rst 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

Signal span too small/drops Mechanical overload caused by overpres-

sure

Replace instrument; if it fails repeatedly, contact

the manufacturer.

Diaphragm damaged, e.g. due to impacts,

abrasive/aggressive medium; corrosion at

diaphragm; transmission medium missing

Replace instrument; if it fails repeatedly, contact

the manufacturer.

Signal span varies/inaccurate Operating temperature too high/low Operate the instrument in the permissible

temperature range

7. Maintenance and cleaning / 8. Faults

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Wika LS-10 Bedienungsanleitung Seite 13