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Checking with Water
1. Ensure the concentrator is on. Refer to
5.4.3 Turning the Concentrator On, page 24
.
Oxygen flow can be checked while the concentrator is starting up.
2. Place the end of the nasal cannula under the surface of a half-full cup of water
3. Look for bubbles indicating oxygen flow out of the nasal prongs:
l
Bubbles are present—Wipe off the nasal prongs. Place the cannula over your ears and position the
prongs in your nose as instructed by your home care provider or cannula manufacturer.
l
No bubbles—Check all cannula connections (including humidifier bottle and accessories, if applicable)
and repeat the procedure. Contact a provider if bubbles are not present.
3
2
1
Fig. 5-18 Testing Oxygen Flow with Water
5.4.6 Oxygen Concentration Indicator
This feature monitors the concentration of oxygen generated by the oxygen concentrator. If concentration falls
below factory preset standards, indicator lights on the control panel (e.g. red or yellow) will illuminate. The
symbol and error code associated with the condition will appear on the display. Refer to
for information about error codes.
Invacare® Platinum® 5NXG Oxygen Concentrator
