7
UNPACKING AND SETUP
WARNING:The plug on the DeVilbiss 515DZ and
515DS concentrators has one blade wider than the
other.To reduce the risk of electric shock, this plug is
intended to fit in a wall outlet only one way. Do not
attempt to defeat this safety feature.
WARNING: Improper use of the power cord and plugs
can cause a burn, fire, or other electric shock hazards.
Do not use the unit if the power cord is damaged.
WARNING: Oxygen promotes rapid burning. Do
not smoke when using this unit or when near a per-
son receiving oxygen therapy. Do not operate the oxygen
concentrator within a minimum of five feet (1.6m) from
hot, sparking, or burning objects or naked flames. Do not
use in rooms heated by paraffin or portable gas heaters.
3. Press the power switch to the “On” position.When the unit is
turned on, the “Service Required” light will illuminate and an
audible signal will sound (the patient alert system) momentari-
ly. The “Power” light also illuminates.
Only DeVilbiss Oxygen Concentrators with OSD
®
NOTE: There are two 515 OSD concentrator models
referred to throughout this Service Manual:
• Early - OSD models
(Concentrator serial number H
19999 and lower)
• Later - OSD models
(Concentrator serial number H20000 and higher)
The OSD is an optional device within DeVilbiss concentrators
that monitors the oxygen produced by the unit.The OSD
operates as follows:
• Normal Oxygen (green light) - oxygen purity normal
• Low Oxygen (yellow light) - oxygen purity low–requires servicing
NOTE: If the oxygen purity continues to fall, an audible signal
will sound intermittently. If the oxygen purity continues to fall
to a low enough level, the yellow “Low Oxygen” light will turn
off and the red “Service Required” light will turn on.
NOTE: Refer to “Specifications” for specific alarm settings.
When the unit with the OSD is turned “On,” all four indicator
lights (Power, Service Required, Low Oxygen, and Normal
Oxygen) on the front panel will briefly illuminate. After a few
seconds, only the “Power” and “Normal Oxygen” lights will
remain on.
NOTE: After Power On, the OSD conducts a continuous
diagnostic evaluation to check for a fault in the piezo electron-
ics. If this condition is detected by the OSD electronics at any
time duing concentrator operation, the green “Normal
Oxygen” OSD light will turn off and the beeping audible and
blinking red “Service Required” light alarms activate.
Otherwise for the first fifteen minutes of operation, the
green “Normal Oxygen” light will remain illuminated
during the oxygen stabilization process.After that
time, the OSD will begin monitoring the oxygen purity
every second.
4. Slowly turn the flow meter knob until the flow meter ball is
centered on the line next to the appropriate flow rate.
NOTE: When the flow meter knob is turned clockwise, the
flow decreases (and eventually will shut off the oxygen flow).
When the knob is turned counter-clockwise, the flow increases.
NOTE: Use low output flow meter (part #515LF-607) for
flow rates under
1 lpm.
NOTE: The unit may require up to 20 minutes for the oxygen
concentration and flow rate to stabilize.The flow rate should
be monitored and readjusted if necessary.
5. The flow meter has a locking device. If it is necessary to pre-
set and lock in the prescribed flow rate, tighten the set screw
located on the hex nut just below the control knob using a
1/16" Allen bit. No adjustment can be made without loosening
the set screw.
6. The DeVilbiss oxygen concentrator is now ready for use.
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