Setting The Zero Point - WIKA WUD 2 E-Serie Betriebsanleitung

5. Faults / 6. Maintenance
For contact details see chapter 1 „General information" or the back page of the operating instructions.
EN
In the event of any faults, first check whether the transducer is mounted correctly, mechanically and electrically.
Faults
Constant output signal upon change
in pressure
No output signal
Deviating output or zero point signal
Deviating zero point signal
Signal span drops/too small
6. Maintenance
6.1 Maintenance
This transducer is maintenance-free.
Repairs must only be carried out by the manufacturer.

6.2 Setting the zero point

Only valid for WUD-2x-E with mechanical zero point setting.
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Observe the product label, see chapter 3.5 "Labelling, safety marks"
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Point 14 marks the position of the potentiometer. If the potentiometer is not visible, then the zero point setting is
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made via EtherCAT®.
8
Causes
Mechanical overload caused by
overpressure
Auxiliary power too high
No/wrong auxiliary power or current pulse
Cable break
Zero point maladjusted
Medium or ambient temperature too high/
low
Diaphragm damaged, corrosion at
diaphragm or process connection
Diaphragm damaged, corrosion at
diaphragm or process connection
WIKA operating instructions ultra high purity transducer, model WUD-2x-E
Measures
Replace instrument
Replace instrument
Correct the auxiliary power
Replace cable
Adjust the zero point
Operate the instrument within the
permissible temperature range, note the
permissible temperature error
Replace instrument
Replace instrument