RKI Instruments 61-0190RK - Manual (Page 8)

4 • 61-1003RK/61-0190RK Combustible Gas Detector
2. Turn off or unplug power to the controller.
3. Remove the cover from the junction box. If the detector is already installed in the
junction box, go to step 6.
4. Guide the detector leads through the bottom conduit hub of the junction box, then
screw the mounting threads of the detector into the conduit hub.
5. Connect the detector leads to the terminal block in the junction box.
6. Guide a four-conductor, shielded cable or four wires in conduit through the top
conduit hub of the junction box. Connect the wires to the terminals opposite the
detector leads.
CAUTION: Leave the shield drain wire insulated and disconnected at the 61-1003RK. You will
connect the opposite end of the cable’s drain wire at the controller.
7. Secure the junction box cover to the junction box.
8. Route the cable or wires in conduit leading from the detector through one of the
conduit hubs at the controller.
CAUTION: Do not route power and detector wiring through the same conduit hub. The power
cable may disrupt the transmission of the detector signal to the controller.
Figure 2: Wiring the Combustible Gas Detector to a Controller
Black
Green
White
Red
Terminal Strip
Black
Green
White
Red
IR LEL
Detector
Controller
LEL Detector
Terminals
Detector
Wires
Cable Shield
Controller Housing