RKI Instruments Eagle Series - Manual (Page 58)

Diffusion Eagle Instruction Manual Maintenance • 53
Replacing the combustibles sensor
Replace the combustibles sensor when:
• The combustibles channel cannot be calibrated correctly.
• The LEL reading cannot be set to 0 by the Demand Zero command.
To replace the combustibles sensor:
1. Take the Eagle to a non-hazardous location, and turn the power off.
2. Remove the Remote Detector from the Eagle.
3. On the Remote Detector, unscrew the four screws on top of the case using
a flat blade screwdriver. Carefully lift the top of the case and place it to
one side. Be careful not to pull hard on the top because a two-wire cable
connects the top to the circuit board inside the case.
H2S
Sensor
Charcoal
Filter
To CN4
Combustibles
Sensor
To CN3
CO Sensor
To CN2
To CN1
Filter Boot
Oxygen Sensor