Emerson 00825-0100-4716 Connect Wiring And Power Up Fieldbus, Power Supply, Power Conditioner

Quick Installation Guide

00825-0100-4716, Rev DA October 2009

Rosemount 3095 MultiVariable

STEP 4: CONNECT WIRING AND POWER UP (FIELDBUS)

Use the following steps to wire the transmitter:

1.Remove the housing cover labeled “Field Terminals.” Terminals are not polarity sensitive.

2.Connect the signal leads to the terminals labeled “Fieldbus Wiring”.

3.Plug and seal unused conduit connections.

4.Install wiring with a drip loop. Arrange the drip loop so the bottom is lower than the conduit connections and the transmitter housing.

5.Replace the housing cover.

NOTE

Do not attach shield to ground.

Power Supply

To operate and provide complete functionality, the transmitter requires the supply voltage to be within the ranges shown below.

Approval Option Code	Supply Voltage
B, D, F, J, K, L, N, 2, 4, 9	9-30 Vdc
A, C, E, G, H, P, R, 0, 3, 5, 7, 8	9-32 Vdc
T, U, V, W, Y, 6	9-17.5 Vdc

Power Conditioner

A fieldbus segment requires a power conditioner to isolate the power supply filter and decouple the segment from other segments attached to the same power supply.

Grounding

Signal wiring of the fieldbus segment can not be grounded. Grounding out one of the signal wires will shut down the entire fieldbus segment.

Shield Wire Ground

To protect the fieldbus segment from noise, grounding techniques for shield wire usually requires one and only one grounding point for shield wire to avoid creating a ground loop. The ground point is typically at the power supply.

Signal Termination

For every fieldbus segment a terminator should be installed at the beginning and at the end of each segment.

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