Yuwell 7F-3 User Manual

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OPERATING ＆ INSTALLATION
Ⅳ. ALARM SIGNAL
Concentrator has following failure Alarm function:
1) Pressure failure 2) Compressor failure
3) Low oxygen concentration 4) Over temperature
5) Low flowrate 6) Power loss
Note: All the alarms are LOW PRIORITY.
Alarm can only be ceased by turning off the device.
 Initial startup of the concentrator
When the unit is turned on, the green/yellow lights and alarm will come on about 1
second to ensure the function of the indicators, then the yellow lights and alarm will
come off. After 5 minutes later, the oxygen sensor will be operating normally and will
control the indicator lights depending on oxygen concentration values. The explanations
of the indicator light functions are as follows.
 Explanation of the indicator light and alarm
Symbol Status
Indicator
lights
alarm
I/O
SYSTEM OKAY
(O
2
concentration is greater than 82%.)
Green —
O
2
concentration is less than 82%.
Yellow Alarm
SYSTEM FAILURE
(Pressure failure alarm; Or, Compressor
circuit failure alarm ; Or , over
temperature alarm，low flowrate)
Yellow Alarm
—
Power loss
— Alarm
 Alarm signal register
1. O
2
concentration is greater than 82%. - Green light illuminates, and panel shows
“elapsed time” and " setting time ——". Normal Operation.
2. O
2
concentration is less than 82%. - yellow light illuminate, alarm sounds, and panel
shows “elapsed time” and " setting time ——". Call Supplier Immediately. You
may continue to use the concentrator unless instructed otherwise by your supplier.
Be certain that BACKUP OXYGEN is nearby.

Yuwell 7F-3 Specifications

General

Brand	Yuwell
Model	7F-3
Category	Medical Equipment
Language	English