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Quick Installation Guide
00825-0100-4075, Rev BA
February 2010
Smart Wireless THUM Adapter
12
Figure 14. Direct Mount Wiring Diagram for 4-Wire Active Device
NOTE:
An active loop exists when the wired devices is supplying the power to the 4-20 mA
loop. It is important to verify if the wired device is operating in active or passive
mode.
Figure 15. Remote Mount Wiring Diagram for 4-Wire Active Device
Splice Connector
Wired Device
4-20 mA Loop -
4-20 mA Loop +
Ground
Power +
Power -
THUM Adapter
Green
Yellow
White
Black
Red
Power+
Power-
4-20 mA/HART +
4-20 mA/HART -
Remote Mount Housing
4-20 mA Loop -
4-20 mA Loop +
Ground
+ COMM
- COMM
THUM Adapter
Green
Yellow
White
Black
Red
To Wired Device
Shield Wire
4075_QIG_Rev_BA.fm Page 12 Friday, February 19, 2010 11:08 AM