You can do this in few easy steps:
1.
To place in Airplane Mode: Press and hold both Mute
for 4 seconds.
2. The screen will display as follows:
and the power/battery symbol will alternate
with "A":
3. If a button is pressed, the display shows as
normal
and after 10 seconds it reverts to the con-
tinuously alternating "A"
4. To disable the Airplane Mode: Press and hold both Mute
for 4 seconds.
IMPORTANT: Activating or de-activating the Airplane mode does not affect the normal
operating performance of your device, continue to use your device as normal.
9 . ALARM INDICATORS
If the Zen-O lite™ Portable Oxygen Concentrator detects an alarm condition, it will indi-
cate the alarm visually and audibly within 10 seconds. There are four levels of alarms:
critical high priority, high priority, medium priority, and low priority.
Each is indicated differently by the backlit display; yellow, and red LEDs; and buzzer, as
indicated below. In each case, the alarm message and power status will override the cur-
rent display.
IMPORTANT: All alarm conditions and parameters are factory preset; conditions and
parameters cannot be changed or adjusted by the user.
IMPORTANT: The alarm system is tested during the startup sequence. You should see
all alarm lights briefly turn on and the audible alarm indicator chirp.
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and
Minus buttons
and
Minus buttons
EN