Emerson Rosemount 3051P Reference Manual page 58

Electrical installation
April 2020
Figure 4-6: 4–20 mA HART
A. DC power supply
B. R
Perform the following procedure to make wiring connections:
Procedure
1. Remove the housing cover on terminal compartment side.
2. For 4–20 mA HART output, connect the positive lead to the terminal marked (pwr/
3. Ensure full contact with terminal block screw and washer. When using a direct
58
®
≥ 250 (necessary for HART communication only)
L
WARNING
Signal wiring supplies all power to the transmitter. Do not remove the cover in
explosive atmospheres when the circuit is live.
comm+) and the negative lead to the terminal marked (pwr/comm–).
CAUTION
Power could damage the test diode.
Do not connect the powered signal wiring to the test terminals.
wiring method, wrap wire clockwise to ensure it is in place when tightening the
terminal block screw.
CAUTION
The connection may be susceptible fo loosening over time or under vibration.
Emerson does not recommend using a pin or ferrule wire.
Reference Manual
00809-0700-4001
Emerson.com/Rosemount