65-2330RKSS H
2
S Transmitter • 11
Wiring the H
2
S 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 terminal 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 terminal labeled
SIG/PWR “+”
terminal.
•
Connect the signal wire to the terminal labeled
SIG/PWR “S”
terminal.
CAUTION:
If shielded cable is used, leave the cable shield’s drain wire insulated and
disconnected 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 H
2
S 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.
