Emerson Process Management 3500 Transmitter Connecting power supply wiring

5.At the transmitter:

a.Connect the color-coded wires to the appropriate terminals. To identify the terminals, refer to Figure 5, page 8. No bare wires should remain exposed.

b.If using shielded or armored cable, connect the cable braid to the rear stud, as described in Micro Motion’s 9-Wire Flowmeter Cable Preparation and Installation Guide.

STEP 6. Connecting power supply wiring

CAUTION

Improper wiring installation can cause device failure or measurement error.

•To avoid device failure or measurement error, do not install power supply wiring in the same cable tray or conduit as input/output wiring.

•Shut off power supply before installing the applications platform.

•Make sure power supply voltage matches voltage that is indicated on power supply wiring terminals. See Figure 6, page 10.

Referring to Figure 6, page 10, connect the Model 3300/3500 to a power supply as follows:

1.Use 18 to 14 AWG (0,75 to 2,5 mm2) wire.

2.Ground the power supply wiring:

•Connect the ground wire to the middle terminal.

•Connect the power supply ground directly to earth ground.

•Keep all ground leads as short as possible.

•Ensure that all ground wiring has less than 1 ohm impedance.

3.Connect wires to the upper and lower terminals.

A user-supplied switch may be installed in the power supply line. For compliance with low-voltage directive 73/23/EEC (European installations), a switch in close proximity to the rack is required.

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