RKI Instruments 65-2394RK User Manual
Page 10
6 • 65-2394RK Combustible Gas Transmitter
6.
Guide a three-conductor, shielded cable, or three wires in conduit through the top
conduit hub of the junction box.
7.
Pull out the controller terminal strip, and connect the three wires to the terminal strip
as follows (see Figure 3).
•
Connect the positive wire to the
PWR/SIG “+”
terminal.
•
Connect the signal wire to the
PWR/SIG “
S”
terminal.
•
Connect the negative wire to the
PWR/SIG “-”
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 combustible 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 shown in Figure 3.