Wika OT-1 Instrukcja Użytkownika Pobierz pdf (Strona 13)

13WIKA operating instructions OEM pressure transmitter, model OT-1

2127027.02 09/2013 GB/D/F/E

8. Faults

In the event of any faults, rst check whether the pressure transmitter is mounted correctly, mechanically and electrically.

Faults Causes Measures

No output signal Cable break Check the continuity

Deviating zero point signal Overpressure limit exceeded Observe the permissible overpressure safety (see

chapter 3 “Specications”)

Deviating zero point signal Operating temperature too high/low Observe the permissible temperatures (see chapter

3 “Specications”)

Constant output signal upon change

in pressure

Mechanical overload caused by

overpressure

Replace pressure transmitter; if it fails repeatedly,

contact the manufacturer

Signal span too small Mechanical overload caused by

overpressure

Replace pressure transmitter; if it fails repeatedly,

contact the manufacturer

Signal span varies EMC interference sources in the environ-

ment; for example, frequency converter

Shield the pressure transmitter; cable shield; remove

source of interference

Signal span varies/inaccurate Operating temperature too high/low Observe the permissible temperatures (see chapter

3 “Specications”)

Signal span drops/too small Signal span drops/too small Contact manufacturer and replace pressure

transmitter

If complaint is unjustied, we will charge you the complaint processing fees.

CAUTION!

If faults cannot be eliminated by means of the measures listed above, shut down the instrument

immediately, and ensure that pressure and/or signal are no longer present, and secure the instrument from

being put back into operation inadvertently. In this case, contact the manufacturer. If a return is needed,

please follow the instructions given in chapter 9.2 "Return".

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Wika OT-1 Instrukcja Użytkownika Strona 13