ECE M50 - Page 8

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