4.2 Function Description
(1) Ramp Time
Ramp time function allows user to fall into sleep with a lower, comfortable pressure and helps
users gradually accustomed to increasing treatment pressure. The first selection of pressing
"MENU"
is
[Ramp XX MIN]
. When the
"MENU"
setting is in
[Ramp XX MIN]
mode, press
"UP"
or
"DOWN"
button to set the preferred ramp time and press
"MENU"
for confirmation.
There are 10 adjustable levels, 0, 5, 10, 15, 20, 25, 30, 35, 40 and 45 minutes.
(2)Ramp Starting Pressure
Press
"MENU"
button to select
[Ramp P XX.X]
menu, press
"UP"
or
"DOWN"
button to set
the preferred ramp starting pressure and press
"MENU"
for confirmation. The ramp starting
pressure can be changed from 3 cmH
2
O to “Therapy Pressure – 1” cmH
2
O. For example, if your
therapy pressure is 10 cmH
2
O, the maximum ramp starting pressure you can select is 9 cmH
2
O.
(3) Therapy Pressure
Press
"MENU"
button to select
[P XX.XcmH
2
O]
menu, you can view the current pressure
setting displayed in cmH
2
O unit. Therapy pressure is adjustable only by the provider, a
respiratory therapist or physician.
NOTE: The therapy pressure is to only be prescribed by a physician.
(4) Altitude Compensation
Press
"MENU"
button to select
[Alt XXX]
menu, press
"UP"
or
"DOWN"
button to set the
preferred altitude compensation level from 1 to 3. The level should be set depending on your
elevation above sea level. Once the preferred level has been selected, press
"MENU"
for
confirmation.
1
0 ~ 2600 ft
0 ~ 800 m
2
2601 ~ 5200 ft
801 ~ 1600 m
3
5201 ft ~8000 ft
1601 m ~2400m
NOTE
– Altitude compensation setting is mainly for the sensitivity adjustment for low
pressure alarm at mask off or leakage situation. This device equipped with pressure sensory
feedback mechanism by PWM control. Whenever air leakage or mask off occurs, device will
compensate more PWM value to achieve device’s targeted pressure.
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