Nonin Avant 9600 Operator's Manual page 13

Alarm Volume LED
This amber LED indicates that the Alarm Volume can be reviewed or
adjusted using the Plus (+) and Minus (-) buttons.
AC Power Adapter LED
This green LED is displayed when an external power supply is
providing power to the Avant 9600. The Avant 9600 battery pack is
being charged any time this LED is displayed—even when the device
is shut off.
Battery LED
This amber LED indicates a marginal battery charge when blinking.
In addition, this LED—when lit solidly—indicates that the battery
charge is being displayed or the battery pack is not installed. This
LED does not indicate that the Avant 9600 is running on battery power. The
battery charge indication will not be accurate before one full charge/
discharge/recharge cycle with a new battery pack.
WARNING: The battery pack must be installed at all times
while the device is operating—even when operating
on AC power. If it is necessary to operate the device
without batteries, audible alarms and memory
functions may not be available. DO NOT use the
device without batteries when patient safety relies
upon audible alarms.
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