RKI Instruments 65-2442RK - Manual (Page 10)

6 • 65-2442RK PPM Hydrogen Transmitter
11. Connect the wires to the applicable detector/transmitter terminal strip at the
controller as shown in Figure 3.
Figure 3: Wiring the PPM Hydrogen 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.
Black
Red
Cable Shield
Controller
- (DC Ground)
+ 24 VDC
4 - 20 mA In (S)
Detector W ires R
B
PW
R
/
S
IG
S
W hite
Gas Select Jumper,
In Hydrogen Position
D
E
T
E C
T
O
R
W
2 4 3 1
G
a
s
S
e
le
c
t
1-
2
H
e
x
3-
4
H
2