Emerson 3051S Especificações descarregar pdf (Página 10)

May 2015

Quick Start Guide

Figure 7. Transmitter Wiring

A. RL ≥ 250 Ω

B. Power supply

Note

Installation of the transient protection terminal block does not provide transient protection unless

the 3051S case is properly grounded.

Signal wiring grounding

Do not run signal wiring in conduit or open trays with power wiring, or near heavy

electrical equipment. Grounding terminations are provided on the sensor module

and inside the Terminal Compartment. These grounds are used when transient

protection terminal blocks are installed or to fulfill local regulations. See Step 2

below for more information on how the cable shield should be grounded.

1. Remove the Field Terminals housing cover.

2. Connect the wiring pair and ground as indicated in Figure 8.

a. The cable shield should:

 Be trimmed close and insulated from touching the transmitter housing

 Continuously connect to the termination point

 Be connected to a good earth ground at the power supply end

Figure 8. Wiring

PlantWeb housing wiring Junction box housing wiring

A. Insulate shield D. Trim shield and insulate

B. Minimize distance E. Safety ground

C. Connect shield back to the power supply ground

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Emerson 3051S Especificações Página 10