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Main circuit board sample draw housing – RKI Instruments 35-3010RK-06-02 User Manual

Page 14

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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 T erm inal 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