Emerson THUM - 4-Wire Device Wiring

Figure 6-5: Direct Mount Wiring Diagram for 4-Wire Passive Device
A
Green
Red
Black
White
Yellow
B
C
COMM + COMM -
Power -
Power +
D
E
4 - 20 mA Loop +
4 -20 mA Loop -
F
A. THUM Adapter
B. Wired device
C. Ground
D. Splice connector
E. Load resistor ≥ 250 Ω
F. Power supply
Note
A passive loop exists when the wired device is not supplying power to the 4–
20 mA loop. It is important to verify if the wired device is operating in active
or passive mode.
September 2020 Quick Start Guide
Quick Start Guide 15