Wika PSD-31 User Manual download pdf (Page 30)

30 WIKA operating instructions pressure switch model PSD-3x

11430486.06 02/2012 GB/D/F/E

8. Faults

In the event of any faults, rst check whether the pressure switch is mounted correctly,

mechanically and electrically.

Error display

Via the instrument's display internal errors of the instrument are output.

The following table shows the error codes and their meaning.

8. Faults

Problem Possible cause Measure

No output signal Cable break Check the continuity

No output signal No/wrong power supply Rectify the power supply

No/wrong output signal Wiring error Observe the pin assignment

Constant output signal upon change

in pressure

Mechanical overload caused by over-

pressure

Replace instrument; if it fails repeatedly,

contact the manufacturer

Deviating zero point signal Overpressure limit exceeded Observe the permissible overpressure limit

Signal span too small Mechanical overload caused by over-

pressure

Replace instrument; if it fails repeatedly,

contact the manufacturer

Signal span too small Power supply too high/low Rectify the power supply

Error Description

ATT1 On changing the switch point, the system automatically reduces the reset point.

ATT2 Zero-point adjustment error, current pressure is outside the limits

ATT3 Password entered for menu access is incorrect

ERR Internal error

OL Overpressure, measuring range exceeded > approx. 5% (display blinks)

UL Underpressure, below measuring range < approx. 5 % (display blinks)

Acknowledgement of an error display by pressing the "Enter" key.

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 127 128

No comments

Wika PSD-31 User Manual Page 30