Emerson 00825-0100-4075 - Manual (Page 10)

Quick Installation Guide
00825-0100-4075, Rev DA
July 2011
Smart Wireless THUM Adapter
10
Figure 10. Direct Mount Wiring Diagram for 4-Wire Passive Device
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.
Figure 11. Remote Mount Wiring Diagram for 4-Wire Passive Device
Splice Connector Wired Device
4-20 mA Loop -
4-20 mA Loop +
Ground
THUM Adapter
Green
Red
Black
White
Yellow
Po
w
e
r+
Powe
r-
COMM
+
CO
MM-
Power +
Supply -
Load Resistor 250 
Remote Mount Housing
4-20 mA Loop -
4-20 mA Loop +
Ground
+ COMM
- COMM
THUM Adapter
Green
Red
Black
White
Yellow
To Wired Device
Shield Wire
Load Resistor 250 
+ Power
- Supply
4075_QIG_Rev_DA.fm Page 10 Wednesday, July 27, 2011 8:50 AM