Emerson 1700, 2700 installation manual 10 Gland body and core processor housing

Wiring the Transmitter to the Sensor

Figure 3-10Gland body and core processor housing

5.Insert the wires through the gland body and assemble the gland by tightening the gland nut.

6.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 mm2) wires (red and black), which should be used for the VDC connection, and one pair of 22 AWG (0,35 mm2) wires (green and white), which should be used for the RS-485 connection. Connect the four wires to the numbered slots on the core processor, matching corresponding numbered terminals on the transmitter. See Figure 3-11.

Figure 3-11Connecting the wires at the core processor

Power supply +	RS-485B
(Red wire)	(Green wire)

Power supply –	RS-485A
(Black wire)	(White wire)

Core processor housing internal ground screw

•For connections to earth ground (if core processor cannot be grounded via sensor piping and local codes require ground connections to be made internally)

•Do not connect shield drain wires to this terminal

7.Reinstall and tighten the core processor housing cover.

CAUTION

Twisting the core processor will damage the equipment.

Do not twist the core processor.

26 Micro Motion® Model 1700 and 2700 Transmitters