Wire, Ground, And Power Up - Emerson Rosemount 2051 Quick Start Manual

Quick Start Guide
Note
It is recommended the cover be tightened until there is no gap between the cover and
housing.
Figure 7. Simulate and Security Switches
C
B
A
A. Simulate disabled position
B. Simulate switch
C. Simulate enabled position (default)

6.0 Wire, ground, and power up

Use of copper wire of sufficient size to ensure that 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
F
A. Minimize distance
B. Trim shield and insulate
C. Protective grounding terminal
(do not ground cable shield at the transmitter)
10
D
E
F
C
B
DP
D
D. Security locked position
E. Security switch
F. Security unlocked position (default)
E
D. Insulate shield
E. Minimize distance
F. Connect shield back to the power
supply ground
September 2016