Test record
as per Service and Repair Manual WM 67971
Löwenstein Medical Technology GmbH + Co. KG, Kronsaalsweg 40, 22525 Hamburg, Germany, T: +49 40 54702-0, F: +49 40 54 702-461
Sleep apnea therapy device
Löwenstein Medical Technology GmbH + Co. KG
Final test (as per Service and Repair Manual WM 67971)
Check housing: Housing is free from damage and defects.
Check the power supply cable
x The cable shows no signs of damage.
x There are no loose contacts.
Check the power supply unit.
The LED in the power supply unit lights up.
Performing a function check
Perform the step-by-step test
Step 1
:
Check the date and time
x The date and time are correct.
Step 2
:
Check the On/Off button
x On/Off button not pressed:
Display: Power key test status -> Power key NOT pressed
Display: Power LED -> OFF
x On/Off button pressed:
Display: Power key status -> Power key pressed
Display: Power LED status -> OFF
Step 3
:
Check alarm beeper
x Signal tones are emitted in three different volumes.
Step 4
:
Check the SD card.
x SD card present, display: SD card status -> Passed
x SD card not present, display: SD card status -> SD card not recognized
Step 5
:
Check PSG/system interface
x Display: PSG UART test status -> passed
Step 6
:
Check the ambient pressure sensor.
x The ambient pressure displayed corresponds to the current air pressure.
The deviation must not be more than 20 mbar.
Step 7
:
Check the pressure settings
x The maximum
difference between the
and measured
values is within the
tolerance.
Step 8
:
Check the flow values
The displayed flow values are within
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