Manual

18 • Factory Wiring Digester Gas Monitor Operator’s Manual
Factory Wiring
The figure below shows the factory wiring. Standard channel assignment is shown. If your
Digester Gas Monitor has less than four sensors, your detector wiring will be slightly
different.
Figure 7: Factory Wiring
EXT DC
24 V BATT
Black
Red
CH
1
CH
2
Re d
ALARM
RESET
ALARM
BU ZZER
C E
CH
3
CH
4
+S- WG RWGB + -
Black
B
Green
Black
White
FA IL
NONC C
RELAY-A
NONC C
RELAY-D
NONC C
RELAY-C
NONC C
A
White
Controller
Term in al S trip
CH4 Sensor
Flow
Switch
WiresTwisted
Red
Factory S oldered to
Back of Board
Reset
Switch
O2 Sensor
2-Way
Solenoid
D
Orange
Conduit Hubs
RELAY-B
NONC C
3-Way
Solenoid
Com mon/C hannel A larm
Terminal S trip
Black
Buzzer
Diodes are
shown for
reference. They
are not user
accessible.
AMP
4-20m A
OU TP U T
LELOXY
WiresTwisted
2-Way
Solenoid
Black
Red
White
Detector/Transmitter
Term inal S trips
-V(DC-)
+ V (DC+)
-V(DC-)
+ V (DC+)
H2S
Sensor
Wire
Nut
Black
N(Neutral)
L(Hot)
Green
(Ground )
CO2 S ensor
POWER SUPPLY
3-Way
Solenoid
2-Way
Solenoid
Green
Green
White