WIKA WU-10 Mode D'emploi page 15

8. Adjustment of zero point
Procedure for Transducer without side access
1. Remove all power to the transducer.
2. Remove the locking ring, on the top of transducer, in order to expose
the zero adjusting potentiometer. Carefully pull the assembly out of
the transducer housing, as far as the internal connector cable will
allow.
3. Restore power to the transducer.
4. Vent the transducer to pressureless state. Monitor the output signal,
and adjust the zero screw to 4mA or 0.1V depending on the signal
output. The Zero adjustment screws are both turned in a clockwise
direction to increase the signal or in a counter clock-wise direction to
decrease the signal.
5. Remove all power to the transducer again.
6. Rotate the electrical connector on the transducer housing to the
keyed insertion. After this, replace and hand tighten the locking ring
on the top of transducer.
Procedure for Transducer with side access
1. Turn the grip ring until the access to the potentiometer
is free.
2. Adjust the zero point by means of the potentiometer in
pressureless state. When doing this, do not contact other
components with the screw driver to excluse a short
circuit in the instrument.Check the zero point by means
of a suitable instrument. Clockwise rotation means an
upward zero offset, anti-clockwise rotation means a
downward zero offset.
3. After this, turn the grip screw until the access to the
potentiometer is closed again.
For further information
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WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio WU-1X
Potentiometer for
zero adjustment
Potentiometer for
zero adjustment
GB
Grip ring
15