Installation guide

Installation Manual 23
Wiring
Figure 3-15: Installing the gland body
7. Insert the wires through the gland body and assemble the gland by tightening the
gland nut.
8. Identify the wires in the 4-wire cable.
The 4-wire cable supplied by Micro Motion consists of one pair of 18 AWG (0,75 mm
2
)
wires (red and black) for the VDC connection, and one pair of 22 AWG (0,35 mm
2
) wire
(green and white) for the RS-485 connection.
9. Connect the four wires to the numbered slots on the core processor. See Figure 3-16.
Figure 3-16: 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.
12. Connect the cable to the transmitter.
WARNING!
Do not twist the core processor, as this will damage the sensor.
Power supply +
(Red wire)
Power supply –
(Black wire)
RS-485A
(White wire)
RS-485B
(Green wire)
Core processor housing internal ground screw