Installation manual

25
Reference Manual
00809-0100-4075, Rev CA
Section 3: Mounting
March 2014
Mounting
Figure 3-21. Wiring diagram for 4-wire passive device
Figure 3-22. Wiring diagram for 4-wire passived device with resistor
Note
An active loop exists when the wired device is supplying power to the 4-20 mA loop. It is
important to verify if the wired device is operating in an active or passive mode.
Figure 3-23. 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
Red
Black
White
Yellow
Power+
Power-
4-20 mA/HART -
4-20 mA/HART +
Splice Connector
Wired Device
4-20 mA Loop -
4-20 mA Loop +
Ground
Power +
Power -
THUM Adapter
Green
Red
Black
White
Yellow
Power+
Power-
4-20 mA/HART -
4-20 mA/HART +
Resistor
Splice Connector
Wired Device
4-20 mA Loop -
4-20 mA Loop +
Ground
Power +
Power -
THUM Adapter
Green
Yell ow
White
Black
Red
Power+
Power-
4-20 mA/HART -
4-20 mA/HART +