Oxygen Concentrator
PN 14940837 B — 22
Intake Filter
1. Press the power switch in the “OFF” position and unplug the
electrical cord.
2. Lay the concentrator gently on its side to access the bottom
of the unit.
3.Remove screw with Phillips Screw Driver from the filter cover.
See picture below.
Filter Cover
4. Pull outward to remove filter cover.
Filter Cover
5. Pull outward on the intake filter to remove from its compart-
ment.
6. To replace, reverse steps 1–5.
Oxygen Concentration Test
CAIRE recommends testing the oxygen concentration at least once
every six months for non-OCSI units.
1. Plug the AC Power Cord into an electrical outlet, and turn
the power switch in the “ON” (I) position.
2. Allow the concentrator to run continuously for a minimum
of 10 minutes.
3. Disconnect the tubing and/or cannula from the outlet barb if
one is attached.
4. Turn the flow control knob to 5LPM
5. Connect a calibrated oxygen analyzer to the outlet barb.
6. Verify that this display reads between 87–95.5%.
Note:
• If the oxygen concentration is not between
87–95.5%, refer to the troubleshooting sec-
tion of this manual for “Low Oxygen Con-
centration.”
• If the concentrator is alarming and the oxygen
concentration measured is greater than 85%,
replace the main PCB.