Ametek Thermox 2000 ATEX Series User Manual page 54

Remote sense setup wiring for combustibles
If you do not have the combustibles option, skip this section.
NOTE
If the distance between the controller and the sensor is over 40 feet, and
you are using the combustibles option, you must use the remote sense
setup. With the remote sense setup, you can obtain the best accuracy of
your combustibles detector readings. See Table 3-2 for the number of pair
required and the type of wire required.
To use the remote sense setup, you must first set the Remote/Local jump-
ers to the Remote Position (see Figure 3-16). Then you need to make an-
other set of wiring connections between the control unit wiring card and
sensor as shown in Figure 3-16. (you will end up having two wires con-
nected to each combustible detector screw terminal on the sensor board.
3-30 | Thermox Series 2000 WDG-HPII / HPIIC - ATEX