Electrical connection Cerabar M, Deltabar M, Deltapilot M
38 Endress+Hauser
5 Electrical connection
5.1 Connecting the device
Supply voltage might be connected!
Risk of electric shock and/or explosion!
‣ Ensure that no uncontrolles processes are activated in the system.
‣ Switch off the supply voltage before connecting the device.
‣ When using the measuring device in hazardous areas, installation must comply with the
corresponding national standards and regulations and the Safety Instructions or
Installation or Control Drawings.
‣ A suitable circuit breaker must be provided for the device in accordance with
IEC/EN61010.
‣ Devices with integrated overvoltage protection must be grounded.
‣ Protective circuits against reverse polarity, HF influences and overvoltage peaks are
integrated.
Connect the device in the following order:
1. Check that the supply voltage corresponds to the supply voltage indicated on the
nameplate.
2. Switch off the supply voltage before connecting the device.
3. Remove housing cover.
4. Guide the cable through the gland. Preferably use a twisted, shielded two-wire cable.
5. Connect the device in accordance with the following diagram.
6. Screw down the housing cover.
7. Switch on the supply voltage.
A0029967
FOUNDATION Fieldbus electrical connection
1 Terminals for supply voltage and signal
2 Grounding terminal
3 Supply voltage: 9 to 32 VDC (Power conditioner)
4 External ground terminal
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