10 • 35-3001A-04-02 Carbon Monoxide Sample-Draw Detector
Carbon Monoxide Detector
The CO detector consists of the detector housing body, plug-in sensor, and the rubber boot with
spacer.
Figure 3: CO Detector Component Location
Detector Housing Body
The detector housing body protects the electronic components within the housing. Two wires (red
and black) extend from the top of the detector housing body. These wires are factory wired to the
amplifier. The threads on the bottom of the housing are used to screw the detector into the flow
block.
The housing includes a four-socket pattern. This socket pattern accepts the sensor’s four pins to
secure the sensor within the detector housing. A pre-amplifier, located between the sockets and two
interconnect wires, conditions the sensor’s signal before the signal reaches the amplifier.
Plug-In CO Sensor
The sensor has four pins that secure it to the detector housing body. Through a series of chemical
and electrical reactions, the sensor produces an electrical output that corresponds to the detection
range of the transmitter.
Rubber Boot and Spacer
A rubber boot and spacer are installed on the sensor. They help ensure that the detector remains
plugged into the detector housing body.
Detector Housing Body
Spacer
Plug-In CO Sensor
Rubber Boot
