Electrical Mounting - WIKA WUD-20 Mode D'emploi

5. Commissioning, operation
WARNING!
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EN
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Prepare the transducer for use
1. Adjust the zero point (please refer to chapter Zero Adjustment).
2. Verify integrity of the weld or seal by appropriate helium leak-testing procedures.
3. Turn the gas flow ON then OFF, 10 times to remove any particles generated during installation. (The
flow rate used should at least equal the process flow specifications.)
MSM, Modular Surface Mount (only WUD-26)
Please observe the corresponding technical specifications, such as torques and mounting position of the
contact components.

5.2 Electrical mounting

WARNING!
Insufficient equipotential bonding
Explosion
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For guidance on US installations, see ANSI/ISA-RP12.06.01 "Installation of Intrinsically Safe Systems
for Hazardous (Classified) Locations".
Installations in the US shall comply with the relevant requirements of the National Electrical Code
(ANSI/NFPA-70 (NEC
14
Make sure the transducer is not connected to any other device, prior to arc welding.
Disconnect the transducer from any electrical device.
The operator is responsible for the material compatibility as well as correct handling,
operation and maintenance.
The transducer must be grounded via the process connection.
).
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WIKA operating instructions Ultra High Purity transducer, model WUD-2x
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