Device functions 75
MASK TEST
This ensures that the mask is airtight, not only during
the slow pressure increase during the soft start ramp,
but also at higher pressures. The mask test can be
programmed to last from 5 to 90 seconds in 5 sec-
ond increments. The mask test is performed before the
ramp starts and tests the tightness under maximum
therapy pressure.
Setting the mask test
1. Select the complete menu (see page 45).
2. Use the selection keys
and to select
Mask Test.
3. Press the enter key and then use the selec-
tion keys and to set the seconds. Confi rm
your setting by pressing the enter key .
4%/!*1
Q 0 ' !0/MMMMMM >;0
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