Wire The Sensor To The Remote Core Processor - Emerson Micro Motion 3500 Installation Manual

Figure 3-9: Connect the four wires to the numbered slots
10. Connect the core processor housing internal ground screw if earth ground is required.
Earth ground is required if the core processor cannot be grounded via sensor piping,
and local codes require internal ground connections.
Do not connect shield drain wires to this terminal.
11. Reinstall and tighten the core processor lid.
WARNING!
Do not twist the core processor, as this will damage the sensor.
12. To connect the cable to the transmitter, connect the four wires from the core
processor to the appropriate terminals on the transmitter.
See
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•
3.3

Wire the sensor to the remote core processor

CAUTION!
Do not allow the shield drain wires to contact the sensor junction box, as this can cause meter
errors.
1. Refer to Micro Motion's 9-Wire Flowmeter Cable Preparation and Installation Guide for
instructions on cable shielding and preparation:
•
•
2. To connect the wires, refer to Micro Motion's 9-Wire Flowmeter Cable Preparation and
Installation Guide and follow the instructions for your sensor with an MVD transmitter.
Installation Manual
Power supply +
(Red wire)
Core processor housing internal ground screw
Table 3-2 and Figure 3-2.
Do not leave bare wires exposed.
Do not ground the shield, braid, or drain wires at the transmitter.
At the sensor end, follow the instructions for your cable type.
At the core processor end, follow the instructions for your cable type with an MVD
transmitter.
Power supply –
(Black wire)
Wiring
RS-485B
(Green wire)
RS-485A
(White wire)
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