Manual

10 • 35-3010RK-06-02 Sample-Draw Detector
9. Connect the drain wire to an available chassis ground at the controller. RKI controllers
typically have a ground stud that can be used to ground the cable’s drain wire.
Figure 5: External (Field) Wiring, Sample-Draw Detector
NOTE: The terminals on RKI controllers used for the CO
2
direct connect configuration
are the same ones used for an LEL detector and are labeled “LEL”.
Interconnect Terminal Strip
CO
Controller Transmitter
Terminals
24 VDC
Controller Oxygen
Terminals
Controller CO2
Terminals
(see note)
(G)
+(W)
R
B
G
W
S (4/20 mA)
+
-
Main Circuit Board
Sample Draw Housing