WIKA WU-20 Mode D'emploi page 19

7. Starting, operation
Specifications
Ex-protection
Ignition protection type
Assembly and packing area
Packaging
Shock resistance
Vibration resistance
Wiring protection
Short-circuit proofness
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Reverse polarity protection
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Weight
1) Including non-linearity, hysteresis, zero offset and end value deviation (corresponds to measured error per IEC 61298-2
When designing your plant, take into account that the stated values (e.g.burst pressure,
overpressure safety) apply depending on the material, thread and sealing element used.
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
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all times!
CAUTION!
When touching the transducer, keep in mind that the surfaces of the instrument compo-
nents might get hot during operation.
WIKA operating instructions, model WU-2x
Models WU-20, WU-25 and WU-26
FM Class I (for transducer with FM-marking)
Nonincendive for Use in Class I, Division 2, Groups A, B, C & D, and Class I,
Zone 2, Group IIC, Hazardous (Classified) Locations
Clean room class 5 per ISO 14644
Double bagging per SEMI E49.6
g 500 (1.5 ms) per IEC 60068-2-27
mm 0.35 mm (10 - 58 Hz) / 5 g (58.1 - 2000 Hz) per IEC 60068-2-6
S+ vs. U- (short time)
U+ vs. U-
kg Approx. 0.1
EN
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