Rki-instruments EAGLE 2 Manual Manual de usuario Pagina 263

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EAGLE 2 Operator’s Manual Description • 253
Figure 41: Typical Infrared Hydrocarbon Sensor Location
Infrared Hydrocarbon Sensor
The infrared hydrocarbon sensor is a cylindrical sensor with a diffusion
opening on the front and a 12 pin circular connector on the back. A 12 wire
cable plugs into the back of the infrared hydrocarbon sensor with a circular
connector that includes a locking lever. The other end of the cable plugs into
an infrared sub PCB (see description below) that is installed on the main
PCB. The sensor is held in the infrared flow chamber by a bracket on
standoffs.
Infrared Sub PCB
The infrared sub PCB is a circuit board that is installed on the main PCB in
one of the 3 sub PCB positions when an infrared hydrocarbon sensor is used
with the EAGLE 2. The infrared hydrocarbon sensor connects to the sub PCB
with a 12-position connector. The sub PCB plugs into the main PCB and is
held in place with a screw/flat washer/lock washer. There are no user
serviceable parts on the infrared sub PCB.
CO Sensor
LEL Sensor and
Sensor Bracket
Pump
Charcoal Filter
Oxygen Sensor
Bracket
Infrared HC Sensor
Top
Case Not Shown
H2S Sensor
Standard Flow Chamber
Oxygen Sensor
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