O
2
Symbol
Purity
O
2
O
un-
2
AB
known
SYSTEM
FAILURE
O
C
2
below
73%
—
D
6.3.8 Elapsed Time Meter (Hour Meter)
The hour meter displays the cumulative number of hours the
unit has operated. Refer to 3.1 Component Identification,
page 14 for specific location.
1195054-B
Indicator
Explanation
Light
(LED)
Immediately
GREEN
call supplier.
light with
Oxygen sensor
YELLOW
is malfunctioning.
light
You may continue
flashing
to use the
concentrator.
Continuous
Audible Alarm
Sieve-GARD™
Compressor
Shutdown
RED light
SYSTEM FAILURE.
(Solid)
Total unit
shutdown.
Immediately
switch to backup
oxygen supply and
call supplier.
Call supplier.
—
Usage
27