Wika PGT43.100 Manual de usuario descargar pdf (Pagina 19)

10. Troubleshooting

Defect Possible reason Remedy

No signal output Failure of power supply or

wiring interrupted

Check power supply and

wiring; replace defective

components

Transmitter miswired Check wiring; if necessary

rectify it

No pressure (only 3-wire)

Check tailpipes

Electronic defect through incor-

rect supply voltage or external

voltage

Return instrument to manufac-

turer for repair

Steady signal, despite

pressure changes

Pressure entry blocked Check tailpipes and pressure

entry bore, if necessary clean it

carefully

Supply voltage connected the

wrong way round

(I = approx. 4.5 mA)

Check the clamping and, if

necessary, change terminals 1

and 2 around

Transmitter failure Return instrument to manufac-

turer for repair

Steady and exces-

sively high signal,

despite pressure

changes

Bridge between terminals 5

and 6 (I = approx. 9.5 mA) was

not removed

Open the cable hood and

remove the bridge between the

terminals 5 and 6

Electronic defect through incor-

rect supply voltage or external

voltage

Return instrument to manufac-

turer for repair

Full span reading too

low

Supply voltage too low Adjust supply voltage

Load impedance too high Consider permissible max. load

Zero point shifted Readjust the zero point (see

chapter 9)

Zero signal too low/

too high

Zero point shifted Readjust the zero point (see

chapter 9)

11297264 05/2009 GB/D/F/E

WIKA Operating Instructions intelliGAUGE family 19

10. Troubleshooting

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