Owner's manual

2 • 35-3001A-01-02 Combustible Gas Sample-Draw Detector
Description
This section describes the components of the combustible gas sample-draw detector.
Figure 1: Combustible Gas Sample-Draw Detector Component Location
_
Pump
Oxygen
Sensor
Terminal
Strip
Mounting
Foot, 4X
W
+
B
O
X
Y
G
E
N
S
PWR / SIG
Sensor
Cu r r ent
148mA
IR HC
Sensor PCB
IR HC
Flow Block
W
LEL
G
B
R
Test P oints
100-500 mV Range
Detector
Terminal
Strip
Pilot LED
Fail LED
Sensor Flow
Control Valve
Pump Reset
Switch
Flowmeter
BGW
Interconnect
Terminal
Strip
AMP 2
S
+
S
AMP 1
+
R
+
WG
OXY
Hydrophobic
Filter
Span Pot
Pump Connector
Zero Pot
Particle
Filter
Flowmeter Circuit
Board Connector
Exhaust
Fitting
This End
To Inlet
Fitting
LEL/IR
3/4" Conduit Hub
IR HC
Sensor
(inside block
)
Controller
Terminal Strip
Inlet
Fitting
IR Amplifier
Fa ct ory Set Pots
INLET
EXHAUST
S
AMP 2AMP
+
+
W B
Pressure
Switch
Adjustment
Screw
(behind PCB)
Detector/Amp
Terminal Stri
p
(Factory
Wired)
LEL/IR
GS R
+
OXY