RKI Instruments 65-2399RK-CH4 - Manual (Page 11)

65-2399RK-CH4 Combustible Gas Transmitter • 7
Figure 4: Wiring the Methane Transmitter to a Controller
12. If shielded cable is used, connect the cable’s drain wire to an available chassis (earth)
ground at the controller. RKI controllers typically have a ground stud that can be used
to ground the cable’s drain wire.
Controller
+ 24 VDC
- (DC Ground)
4 - 20 mA In (S)
Cable sheild
Amplifier
ZE
R
O
R
SP
A N
B
G
W
SI
G
/P
W
R
S
LE
L
IR CH4 %Volume
Detector
Detector Wires
Red
White
Black
Green
J-Box