Emerson Rosemount 3051P Reference Manual page 57

In-line pressure transmitter with hart protocol

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Reference Manual

00809-0700-4001

Figure 4-5: Load Limitation

Maximum loop resistance = 43.5 x (Power supply voltage – 10.5)

The total resistance load is the sum of the resistance of the signal leads and the load

resistance of the controller, indicator,intrinsically safe (I.S.) barriers, and related pieces. If

intrinsic safety barriers are used, the resistance and voltage drop must be included.

4.6.3

Wiring the transmitter

CAUTION

Incorrect wiring can damage test circuits.

Do not connect the power signal wiring to the test terminals.

Note

Use shielded twisted pairs to yield best results. To ensure proper communication, use 24

AWG or larger wire and do not exceed 5,000 ft. (1500 m).

Rosemount 3051P

Electrical installation

April 2020

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Troubleshooting