Nellcor N-395 Operator's Manual page 17

Low Priority Alarm
A low-pitched, slow-pulsing tone
indicating a sensor disconnect,
sensor off, low battery, or monitor
failure
Alarm Silence Reininder
Three beeps that sound
approximately every 3 minutes
when alarms are silenced with the
alarm silence duration set to OFF
Pulse Beep
A single beep sounds for each
detected pulse. The pitch changes
as inonitored SpOz values increase
or decrease.
Volume Setting Tone
A continuous tone that is used to
adjust the alarin volume
Confirinat ion Tone
Three beeps sound to indicate that
default settings have been saved or
reset to factory defaults or trend
data has been deleted