User guide
2 • 35-3001-04 Carbon Monoxide Sample-Draw Detector
Description
This section describes the components of the carbon monoxide sample-draw detector. 
Figure 1: Carbon Monoxide Sample-Draw Detector Component Location
Mounting 
Foot, 4X
+
W
BS G
+
AMP
S W
+ 
AMP 2
OX Y
+ 
R
Pilot LED
Fail LED
Pressure 
Switch 
Adjustment 
Screw
(b
ehind PCB)
Flowmeter
R W BS
OX Y
GW
+ 
G
AMP 2
+ 
S
+
Oxygen 
Sensor 
Terminal 
Strip 
Flow Baffle
Detector/Amp 
Terminal Strip
CO Amplifier
Pump
AMP 1
3/4" Conduit Hub
B
Pump 
Connector
Sensor 
Flow 
Control 
Valve
CO Flow 
Block
_
O
X
Y
G
E
N
Interconnect 
Terminal 
Strip
Flowmeter Circuit 
Board Connector
LEL/ IR
Particle Filter
This End To 
Inlet Fitting
LEL/ IR
CO Sensor 
(inside block)
Exhaust 
Fitting
Inlet 
Fitting
Pump Reset 
Switch
EXHAUST
INLET
Hydrophobic 
Filter










