Key
Start/Stop
Alarm mute
Menu keys
Push dial
LCD screen
The LCD screen displays the menus, monitoring screens and alarm status.
Values on this LCD screen and other screens throughout the User Guide are examples
only.
Warm-up feature H4i
ResMed USB stick
Mains power
External power supply
Internal battery
charge level
Therapy status bar
12
Function
• Starts or stops treatment.
• Extended hold for at least three seconds starts the
• During therapy: Press once to mute an alarm. Press a
• In stand-by mode: Extended hold for at least three
Press the appropriate menu button (Monitoring, Setup, Info)
to enter and scroll through the relevant menu.
Turning the dial allows you to scroll through the menu and
change settings. Pushing the dial allows you to enter into a
menu or confirm your choice.
Title bar
Settings
maskfitting feature.
second time to un-mute an alarm. If the problem is still
present, the alarm will sound again after two minutes.
See "Working with alarms" on page 15.
seconds starts the alarm LED and alarm buzzer test.
Ramp time
Program
Therapy mode
Patient mode
or
Clinical mode
Current screen/number of
screens within the menu
Scroll bar