Set The Jumpers; Connect The Wiring And Power Up - Emerson Rosemount 3051 Series Quick Start Manual

Quick Start Guide

3.0 Set the jumpers

If alarm and security jumpers are not installed, the transmitter will operate
normally with the default alarm condition alarm high and the security off.
1. If the transmitter is installed, secure the loop, and remove power.
2. Remove the housing cover opposite the field terminal side. Do not remove the
instrument cover in explosive atmospheres when the circuit is live.
3. Reposition the jumper. Avoid contact with the leads and the terminals.
See Figure 5
4. Reattach the transmitter cover. The cover must be fully engaged to comply
with explosion-proof requirements.
Figure 5. Transmitter Electronics Board
Without LCD display
A. Alarm
B. Security

4.0 Connect the wiring and power up

Use the following steps to wire the transmitter:
1. Remove the housing cover on the field terminals side.
2. Connect the positive lead to the "+" terminal (PWR/COMM) and the negative
lead to the "–" terminal.
3. Ensure full contact with terminal block screw and washer. When using a direct
wiring method, wrap wire clockwise to ensure it is in place when tightening
the terminal block screw.
Note
The use of a pin or a ferrule wire terminal is not recommended as the connection may be
more susceptible to loosening over time or under vibration.
4. Ensure proper grounding. It is important that the instrument cable shield:
Be trimmed close and insulated from touching the transmitter housing

Be connected to the next shield if cable is routed through a junction box

Be connected to a good earth ground at the power supply end

8
for the location of the jumper and the ON and OFF positions.
With LCD display
A
B
September 2016