EAGLE 2 Operator’s Manual
Replacing the Hydrophobic Filter • 73
4. Clean the inside of the probe body if necessary.
5. Hold the probe half that has the plastic tube fitting and the probe tube with the fitting
and tube facing down.
6. Place the new cone-shaped particle filter into the probe body so that the wide part of
the filter is facing up.
NOTE:
Do not install the particle filter into a probe intended to be used with a PID
EAGLE 2.
7. Place the new filter disk flat on top of the particle filter. Make sure it is centered over
the particle filter.
8. Carefully screw the other half of the probe body onto the half with the particle filter
and filter disk while keeping the probe oriented vertically to keep the disk centered.
9. When you feel the O-ring being compressed, grasp both ends of the probe and tighten
them together very firmly to ensure a seal.
10. To test the seal, do the following.
•
install the probe on the EAGLE 2
•
startup the EAGLE 2
•
confirm that a low flow alarm occurs when you cover the end of the probe tube
with your finger
•
if a low flow alarm does not occur, hand tighten the probe further
•
if a low flow alarm still does not occur when you cover the probe tube with your
finger, disassemble the probe, inspect the placement of the O-rings and filter
disk, reassemble the probe, and re-test it.
Replacing the Hydrophobic Filter
Replace the hydrophobic filter inside the bottom case when it becomes dirty or clogged.
An unexplained low flow alarm may indicate that the hydrophobic filter is dirty and needs
to be replaced.
1. Verify that the EAGLE 2 is off.
2. Place the EAGLE 2 upside down on a flat surface or hold it upside down.
3. Unscrew the three case screws until they disengage from the top case. They are
captive screws so they will not fall off of the bottom case.
4. Turn the EAGLE 2 right side up and carefully lift the top case away from the bottom
case. Be careful not to lift it so far that it pulls on the main PCB with the cable that
connects the top case to the main PCB.
5. Lay the top case down next to the bottom case to allow access to the flow system.
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