WIKA MG-1 Mode D'emploi page 14

6. Commissioning, operation
Types of sealing
per EN 837
GB
Making the electrical connection
Ground the pressure transmitter via the process connection.
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This is Protection Class 3 equipment for connection at low voltages, which are separated from
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the power supply or voltage by greater than AC 50 V or DC 120 V. Preferably, a connection
to an SELV or PELV circuit is recommended; alternatively protective measures from
HD 60346-4-41 (DIN VDE 0100-410).
Option for North America: The connection can be made in line with "Class 2 Circuits"
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or "Class 2 Power Units" in accordance with CEC (Canadian Electrical Code) or
NEC (National Electrical Code).
Select a cable diameter that matches the cable gland of the plug. Make sure that the cable
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gland of the mounted plug has a tight fit. To guarantee the ingress protection, tighten the gland.
For cable outlets, make sure that no moisture enters at the cable end.
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14
per DIN 3852-E
WIKA operating instructions pressure transmitter model MG-1
NPT, R and PT
Self-sealing thread typ