RKI Instruments 35-3000RK-LEL/O - Manual (Page 13)

35-3000RK-LEL/O Sample-Draw Detector • 9
CAUTION: Do not route controller power wiring and detector wiring through the same hub.
The power cable may disrupt the transmission of the sensor signal to the controller.
8. Connect the wires to the applicable detector terminal strip and power terminals at the
controller as shown in Figure 4. See the 35-3000RK-LEL/O detector head specification
sheet for your controller for the specific wiring connections to the controller.
Figure 4: Wiring the Sample-Draw Detector to a Controller
5. 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.
BLA CK
W HITE
G REEN
RD
W
H
T
LE
L/
O
2
To oxygen
sensor
4/
20
G
R
N
B
LK
G
N
D
24V
+
AM
P
RE D
RD
To LEL
Sensor
_
P-
A
M
P
Green
White
BL K G RN W HT 4 /2 0
P- A MP AMP LEL / O 2
_
+ 2 4V G ND
PSW PU MP PRESSURE
SWITCH
INTERN ALLY
WIRED .
PUMP ASSY
INTERN ALLY
WIRED .
CG N D
Controller LEL
Detector Terminals
Controller T erminals
Green
White
Red
Black
1 15 VAC
N H
Green (-)
White (+) Controller O xygen
Detector Terminals
+ 24 VDC
- (DC Ground)
NOT USED
ON THIS
VER SION.
LEL/Oxygen Sample Draw H ousing
PCB IN SINGLE POINT
SAMPLE DRAWING
DETECTOR ASSY.