Device functions 71
CALIBRATION
Calibration guarantees optimum performance of
the automatic function and mask test. It must be
performed when:
• the device is used initially,
• the mask has changed,
•
there is a change from operation without a
bacterial fi lter to with a bacterial fi lter, or vice
versa, or
•
there is a change from operation without a
humidifi er to with a humidifi er, or vice versa.
Calibration is only possible during mains opera-
tion and not in battery mode.
Calibrating the device
1. Connect the mask, the therapy tube and, if
applicable, the humidifi er or bacterial fi lter to the
device.
Ensure that the air and exhalation openings in
the mask are clear and the tube is not kinked.
Do not put the mask on.
Q(%./%+*
4%/!*1
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