Table 1: Working Display Screen Guide
DISPLAY
VALUE/
CODE
000000
EN
High
Low
H01
H02
H08
E01
00:00
No
display
MEANING
Elapsed time
LCD will display wor-
(hours).
king interface after
"0000" displays 10s
High Oxygen
Concentration
Low Oxygen
Red indicator
Concentration
light fl ashes twice
Alarm
per second - and
- oxygen
short, repeating
concentration
audible alarm
below 82%
(sound pressure
level 60 dB)
Output fl ow is too
Red
low
with beeping alarm
Temperature
Red indicator
Alarm - operating
light fl ashes twice
temperature
per second - and
of machine
short, repeating
exceeds
audible alarm
60°C
(sound pressure
level 60 dB)
Pressure
Machine stops
Alarm
operating. Red
(Pressure
indicator light
fault, compressor
fl ashes twice per
failure and
second - and
stoppage,
short, repeating
molecular
audible alarm
sieve failure,
(sound pressure
low voltage,
level 60 dB)
gas path
blocked)
Temperature
Red indicator
sensor failure
light fl ashes twice
per second - and
short, repeating
audible alarm
(sound pressure
level 60 dB)
Current working
time
This symbol
displays
when alarm
occurs
Power failure
Short, repeating
alarm
audible alarm
(sound pressure
level 60 dB)
STATUS
VERIFICATION OF
FUNCTION METHOD
Visual inspection
----
Visual inspection
Adjust the fl ow
meter to maximum
(to force oxygen
concentration
decline), wait for
alarm to trip
fl ashing
light
Check
for any damage or
blockage
Block the machine's
outlet, wait for
alarm to trip
Service Technician
Only) -Use variable
frequency power
supply to set the
power supply voltage
below 85% of
the rated voltage
Remove the plug
of temperature
sensor
----
Visual inspection
----
Visual inspection
Unplug the power
cord
8/135
PRIORITY
----
----
High
the
outlet
High
High
High
High
----
----
Low