65-2340RK Toxic Gas Transmitter • 11
Wiring the Toxic Gas Transmitter to a Controller
WARNING: Always verify that power to the controller is off before you make wiring
connections.
1. Turn off the controller.
2. Turn off power to the controller.
3. Remove the junction box cover.
4. The detector leads are factory wired. Verify that the detector leads are wired to the
amplifier’s detector terminal strip as shown in Figure 5.
5. To gain access to a plug-in terminal strip for wiring, pull it out of its socket by grasping the
terminal strip and pulling. The detector strip is keyed so that the controller and detector
terminal strips cannot be reversed inadvertently.
6. Guide a two-conductor, shielded cable or two wires in conduit through the top conduit hub
of the junction box.
7. Pull out the controller terminal strip, and connect the two wires to the terminal strip as
follows (see Figure 5).
•
Connect the positive wire to the
SIG/PWR “+”
terminal.
•
Connect the signal wire to the
SIG/PWR “
S”
terminal.
CAUTION:
If shielded cable is used, leave the cable shield’s drain wire disconnected and
insulated at the transmitter. You will connect the opposite end of the cable’s drain
wire to the controller’s chassis (earth) ground.
8. Reinstall the controller terminal strip into its socket.
9. Secure the junction box cover to the junction box.
10. Route the cable or wires leading from the toxic gas transmitter through one of the conduit
hubs at the controller housing.
CAUTION:
Do not route power and transmitter wiring through the same controller conduit
hub. The power cable may disrupt the transmission of the transmitter signal to the
controller.
11. Connect the wires to the applicable detector/transmitter terminal strip at the controller as
