Wire, Ground, And Power Up - Emerson Rosemount 3051 Quick Start Manual

August 2016
Figure 7. Simulate and Security Switches
B
A
A. Simulate disabled position
B. Simulate switch
C. Simulate enabled position (default)

2.5 Wire, ground, and power up

Use of copper wire of sufficient size to ensure the voltage across the transmitter
power terminals does not drop below 9 Vdc. Power supply voltage can be
variable, especially under abnormal conditions such as when operating on battery
backup. A minimum of 12 Vdc under normal operating conditions is
recommended. Shielded twisted pair Type A cable is recommended.
1. To power the transmitter, connect the power leads to the terminals indicated
on the terminal block label.
Figure 8. Wiring Terminals
A. Minimize distance
B. Trim shield and insulate
C. Protective grounding terminal (do not ground cable shield at the transmitter)
C
D
E
F
A
B
DP
A
D
E
D. Security locked position
E. Security switch
F. Security unlocked position (default)
C
D. Insulate shield
E. Connect shield back to the power supply ground
Quick Start Guide
11