EAGLE 2 Operator’s Manual
Replacing a Sensor • 77
6. Locate the sensor you want to replace and remove it from the flow chamber.
Figure 24: Replacing a Sensor
7. To remove the LEL sensor, do the following:
•
Unscrew and remove the two screws that hold down the LEL sensor bracket.
•
Grasp the LEL sensor connector and gently pull it up until it either disengages
from the LEL sensor or the LEL sensor comes out of the flow chamber with the
connector.
•
If the sensor came out with the connector, remove the sensor from the connector.
•
If the sensor stayed in the flow chamber, grasp the sensor and pull it out of the
flow chamber.
8. To remove the oxygen sensor, do the following:
•
Unscrew the two screws that hold the oxygen sensor bracket a few turns so that
you can rotate and remove the oxygen sensor bracket. Make sure to note the
routing of the oxygen sensor cable to the main PCB so that you can route the
replacement sensor cable the same way. Also make sure that the O-ring in the
bottom of the flow chamber does not come out with the sensor.
CO Sensor
Main PCB
Oxygen Connector
H2S Connector
Flow Block
Oxygen Sensor Bracket
Oxygen Sensor
LEL Sensor Bracket
LEL Sensor Cable
LEL Sensor
LEL Connector
CO Connector
H2S Sensor
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