Emerson Rosemount 2051 Reference Manual page 27

Reference Manual
00809-0100-4101
Figure 2-15: 4-20 mA HART wiring
A. R
B. Power supply
Figure 2-16: 1-5 VDC low power wiring
A. Voltmeter
B. Power supply
Perform the following procedure to make wiring connections:
Procedure
1. Remove the housing cover on terminal compartment side.
Reference Manual
≥ 250Ω
L
CAUTION
Do not remove the cover in explosive atmospheres when the circuit is live. Signal
wiring supplies all power to the transmitter.
a) For 4-20 mA HART
(+) and the negative lead to the terminal marked (pwr/comm - ). Do not
connect powered signal wiring to the test terminals. Power could damage the
test diode.
b) For 1-5 Vdc HART Low Power output, connect the positive lead to the terminal
marked (+ pwr) and the negative lead to the terminal marked (pwr -). Connect
signal lead to V
out
output, connect the positive lead to the terminal marked
®
/ comm +.
Installation
March 2024
27