ECE M50 - Page 9

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EN
Alarm Testing
As part of a periodic inspection by your provider, the following tests should be carried out.
ALARM HOW TO TEST
Low oxygen concentration alarm Adjust the fl ow meter to maximum output to force a decline in
oxygen concentration. Wait for the alarm to trip.
Temperature alarm Block the oxygen outlet on the device with your fi nger. Wait for
the alarm to trip.
Pressure alarm TO BE PERFORMED BY AN AUTHORIZED MAINTENANCE
PROFESSIONAL ONLY.
Use a variable frequency power supply to set the power supply
to below 85% of the device’s rated voltage.
Temperature sensor failure alarm TO BE PERFORMED BY AN AUTHORIZED MAINTENANCE
PROFESSIONAL ONLY.
Remove the temperature sensor plug. Wait for the alarm to trip
Troubleshooting Guide
The guide below lists common problems, as well as why they happened and what you can do to resolve
them. If you are unable to resolve a problem, or if you experience an issue that is not listed below, please
contact your home care provider.
PROBLEM WHY IT HAPPENED WHAT TO DO
The device is switched on but
not working.
Internal part failure. Contact your home care
provider.
The device is switched on but
not working, or only working
intermittently.
The power cord is damaged. Check whether the power cord
is damaged.
The power cord plug is not pro-
perly inserted into the electrical
outlet.
Make sure the device is proper-
ly plugged in to the electrical
outlet.
The oxygen concentrator is not
receiving power from the elect-
rical outlet.
Check your household outlet
fuse or circuit.
Contact your home care
provider.
Oxygen is not fl owing or the
oxygen fl ow is limited.
The oxygen tubing or cannula is
kinked or blocked, stopping the
delivery of oxygen.
Unkink the oxygen tubing/can-
nula or replace if necessary.
The humidifi er is not properly
connected to the device.
Reinstall the humidifi er.
The fl oat in the fl ow meter does
not move up or down when ad-
justing the fl ow control dial.
The fl ow control dial is not open. Turn the fl ow control dial slowly
and carefully.
The fl ow control dial is faulty. Contact your home care
provider.
There is water in the cannula. There has been a change in
temperature;
OR
The device is too close to a wall,
curtains or furniture.
Dry the inside of the humidifi er
cover.
Do not use hot water in the
humidifi er bottle.
Do not overfi ll the humidifi er
bottle.
Keep the oxygen concentrator
and cannula in the same room
at the same temperature.
If using an extension hose with
your oxygen concentrator, spe-
ak to your home care provider
about fi tting a water trap to
collect excess moisture.