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SECTION 5—OPERATING INSTRUCTIONS
Perfecto
2
™
Series 20 Part No 1143482
Front Panel Indicators - Units with
SensO
2
TheSensO
2
featuremonitorsthepurityofoxygengenerated
bytheoxygenconcentrator.Ifpurityfallsbelowfactorypreset
standards,indicatorlightsonthecontrolpanelwill
illuminate.
FIGURE 5.6 Front Panel Indicators - Units with SensO2
Initial Startup of the Concentrator
NOTE:Concentratormaybeusedduringtheinitialstartwarm‐up
time(approximately30min.)whilewaitingfortheO
2
purityto
reachmaximum.
LABEL
SYMBOL
O
2
PURITY INDICATOR LIGHTS (LED)
SYSTEM OKAY
O
2
over 85% (± 2%)
GREEN Indicator Light
O
2
Between 73% (± 3%)
to 85% (±2%)
YELLOW Indicator light
A. YELLOW Solid
B. YELLOW Flashing Sensor
Failure
Call a qualified technician. Have a
back-up supply of oxygen ready.
SYSTEM FAILURE
O
2
Below 73% (±3%)
RED Indicator Light
Continuous Audible Alarm
Sieve-GARD Compressor Shut-
down. Call a qualified technician.
Switch to a back-up supply of oxy-
gen immediately.
O
2
Auto Shut Down
Use Backup
Below
Normal
Normal
RED
Call Supplier
YELLOW
GREEN
OXYGEN PURITY
O
2