MN220-1 B 73
Portable Oxygen Concentrator
FREESTYLE HOUR METER
General Information
The FreeStyle’s hour meter includes two monitoring channels: a historical channel that cannot
be reset, and a maintenance channel. An onboard, momentary-action pushbutton can be used
to toggle the display between the two channels. The historical channel is generally used to
monitor total operating hours over the life of the FreeStyle unit, while maintenance channel
provides the hours logged between service intervals. While displaying the maintenance
channel, the switch can be used to reset the accumulated maintenance hours to zero.
Figure 20: Hour Meter
The FreeStyle 5 does not have an hour meter on the circuit board.
Please reference the FREESTYLE 5 HOUR METER FUNCTIONALITY
section for more information.
Hour Meter Icons
Two LCD icons are used to indicate each mode. In historical mode, an “hour-glass” is displayed to
indicate hours. While enabled, the hour-glass will illuminate intermittently. In maintenance
mode, both a “TMR1” symbol and an hour-glass are displayed.
Power
When the FreeStyle is connected to AC or DC power, the historical hour meter reading is
displayed along with the hour-glass icon.
When the FreeStyle is connected to AC or DC power supply, the hour count is displayed, but the
time does not accumulate. When the FreeStyle compressor is started when the unit is turned on,
Hour Meter
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