Functional Test; Adjustment Of Zero Point/Span - WIKA OBSOLETE WU-10 Manual De Instrucciones

7. Starting, operation / 8. Adjustment of zero point

Functional test

The output signal must be proportional to the pressure. If not, this might point to a damage of the diaphragm. In
that case refer to chapter 10 „Troubleshooting".
Warning!
Open pressure connections only after the system is without pressure!
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Observe the ambient and working conditions outlined in section 7 „Technical data.
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Please make sure that the transducer is only used within the over load threshold limit at all times!
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Caution
When touching the transducer, keep in mind that the surfaces of the instrument components might get hot
during operation.
8. Adjustment of zero point
These Transducers are maintenance free.
If a zero offset occurs anyhow, this can be adjusted by means of a built-in potentiometer.
For verification and adjustment of the zero point, vent the transducer to zero (0)PSI for gage reference transducers. The
potentiometer for the zero adjustment is protected inside the transducer housing. Use a 0.040" to 0.060" (1 to 1.5 mm)
jeweler's screwdriver for adjustment.
Span adjustment is not necessary after zero point correction.
14 WIKA Operating instructions/Betriebsanleitung/Mode d'emploi/Instrucciones de servicio WU-1X
GB