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Mounting
January 2023
3.5
Load resistor
If required, add a load resistor as shown in
resistor should be adequately rated for the application (1W minimum) and be compatible
with the supplied splice connector which accepts wire sizes from 14 to 22 AWG.
3.6
Wiring diagrams
Figure 3-3: Direct Mount Wiring Diagram for 2-Wire Device
A. THUM Adapter
B. Wired device
C. Ground
D. Splice connector
E. Load resistor ≥ 250 W
F. Power supply
Note
In order for the THUM Adapter to function properly there must be at least 250 Ohms
resistance in the loop. If the 4–20 mA loop does not have the required resistance, wire a
resistor as shown in
18
A
Green
Red
Black
White
Yellow
Figure
3-5,
Figure
3-9, or
Figure
3-5,
Figure 3-9
and
B
C
4 -20 mA Loop +
4 -20 mA Loop -
D
- PWR/COMM
+ PWR/COMM
Figure 3-13
as applicable.
Emerson.com/Rosemount
Reference Manual
00809-0100-4075
Figure
3-13. The
F
E
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