Philips SimplyGo Quick Start Manual page 5

4. Turn on SimplyGo.
Turn the device on by pressing the
Power button twice. After the first
press, the display screen and the button
backlights turn on. Press the Power
button a second time to place the device
in operating mode. This second
press helps prevent unwanted starts
or inadvertent changes in oxygen flow.
The introductory screen momentarily
appears followed by the final operating
mode screen.
5. Set the mode.
Press the Mode button. Note: If the
device is operating and the screen
is dark, the first press turns on the
screen backlight. In this case, press
the button a second time to select
the mode. Continue pressing the
Mode button to scroll through the
Pulse, Continuous Flow, or Sleep
modes. When the desired mode
appears in the display, stop pressing
the button and wait. The display
will return to the run time screen
of the mode you selected, and the
device will operate in this mode.