DeVilbiss 525 Serie Manuel D'instructions page 6

practicable. Please contact your provider for this means of protection.
1 . Press the power switch to the "On" position . When the unit is turned "On," all four lights (Power, Service Required, Low Oxygen and Normal Oxygen) on the front panel
will illuminate briefly, and an audible signal will briefly alarm. After a few seconds, only the Power and Normal Oxygen lights will remain lit.
NOTE– DeVilbiss recommends for optimal service life that the DeVilbiss Oxygen Concentrator be operated for at least 30 minutes after it is powered on. Shorter periods of
operation, operating in extreme temperature/humidity conditions or in the presence of contaminates and/or handling and storage conditions outside those specified, may affect
the long term reliable operation of the product.
WARNING
Oxygen makes it easier for a fire to start and spread. Do not leave the nasal cannula or mask on bed coverings or chair cushions if the oxygen concentrator is
turned on but not in use. The oxygen will make the materials flammable. Turn the oxygen concentrator off when not in use to prevent oxygen enrichment.
NOTE– If the Service Required light illuminates, and the audible signal alarms but the unit is not operating, there is no power to the unit. Refer to the Minor Troubleshooting
chart on page 7 and contact your DeVilbiss provider if necessary.
NOTE– If an audible low-frequency vibration sound is detected, the unit is not operating properly. Refer to the Minor Troubleshooting chart on page 7 and contact your
DeVilbiss provider if necessary.
2. Check the flow meter to make sure that the flow meter ball is centered on the line next to the prescribed number of your flow rate.
CAUTION– It is very important to follow your oxygen prescription. Do not increase or decrease the flow of oxygen – consult your physician.
NOTE– Your DeVilbiss provider may have preset the flow meter so that it can not be adjusted.
NOTE– If the flow meter knob is turned clockwise, the flow decreases (and eventually will shut off the oxygen flow). If the knob is turned
counterclockwise, the flow increases.
NOTE– For prescriptions of 5 LPM, be sure the ball is centered on the 5 liter line. The ball should not touch the red line. Setting the flow
higher than 5 may cause the oxygen purity level to drop.
NOTE– The low-flow alarm may activate if the flow meter ball is set at or below 0.5 lpm. The unit will continue to run; however, the Service
Required light will come on accompanied by an audible alarm. Adjust the flow meter to your prescribed flow.
NOTE– Installation of 515LF-607 low output flow meter package will cause the low flow alarm to not work.
3 . Your DeVilbiss concentrator is now ready for use . Properly position the cannula or mask (Figure 4) and allow 20 minutes for the
oxygen concentrator to reach stated performance .
DeVilbiss OSD Operation
®
The OSD (Oxygen Sensing Device) is a device within your concentrator that monitors the oxygen produced by your unit . When the unit is turned "On," all four lights (Power,
Service Required, Low Oxygen and Normal Oxygen) on the front panel will illuminate briefly. After a few seconds, only the Power and Normal Oxygen lights will remain lit.
The OSD lights on the front panel are defined as follows:
• Green Normal Oxygen light–acceptable oxygen level.
• Yellow Low Oxygen light– below an acceptable oxygen level.
If the oxygen purity falls below the acceptable level, the green Normal Oxygen light will shut off, and the yellow Low Oxygen light will illuminate . Switch to your reserve oxygen
system . Refer to the Minor Troubleshooting section in this guide on page 7 and contact your DeVilbiss provider .
As an added safety feature should the oxygen purity continue to drop, an intermittent audible signal will sound . Contact your DeVilbiss provider immediately . Do not attempt
any other maintenance .
RESERVE OXYGEN SYSTEM
As a precaution, your DeVilbiss provider may supply you with a reserve oxygen system . If your unit loses electrical power or fails to operate correctly, the Patient Alert System
will sound to signal you to switch to your reserve oxygen system (if provided) and contact your DeVilbiss provider .
CARING FOR YOUR DEVILBISS OXYGEN CONCENTRATOR
DeVilbiss recommends using only original DeVilbiss parts and filters in order to guarantee reliable operation of the product.
WARNING
Do NOT use lubricants, oils or grease.
Before attempting any cleaning procedures, turn the unit "Off."
Cannula/Mask, Tubing and Humidifier Bottle
Clean and replace the cannula/mask, tubing and humidifier bottle according to the manufacturer's instructions.
Air Filter and Oxygen Outlet Connector
The air filter and connector should be cleaned at least once a week. To clean, follow these steps:
1. Remove the air filter located on the back of the unit. Remove the oxygen outlet connector (if used).
2 . Wash in a solution of warm water and dishwashing detergent (Figure 5) .
3. Rinse thoroughly with warm tap water and towel dry. The filter should be completely dry before reinstalling.
CAUTION– To prevent product damage, do not attempt to operate the unit without the air filter or while the filter is still damp.
Exterior Cabinet
Clean the concentrator exterior cabinet weekly by using a damp cloth and wiping dry .
WARNING
To avoid electric shock, do not remove the concentrator cabinet. The cabinet should only be removed by a qualified DeVilbiss technician. Do not apply liquid
directly to the cabinet or utilize any petroleum-based solvents or cleaning agents.
Use of harsh chemicals (including alcohol) is not recommended. If bactericidal cleaning is required, a non-alcohol based product should be used to avoid
inadvertent damage.
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