Description Of Alarm Sounds; Audible Indicator Sound Control Priorities; Table 5. Audible Indicator Sound Control Priorities - Nonin 9847V Operator's Manual

Using the 9847V Pulse Oximeter

Description of Alarm Sounds

The pitch of the alarm sounds is the same as a "volume" beep (the tone heard when changing the
breath beep sound volume).
NOTE: Audible alarm volumes are fixed. The audible alarms can be disabled, but the volumes
are not user-adjustable.
The sound sequence for the high priority alarm consists of 3 short beeps, a delay, and then 2 more
beeps within a 1-second period; then an identical pattern after a 1-second delay. This sound sequence
then repeats every 10 seconds until the high priority animal alarm condition is cleared.
The sound sequence for the medium priority alarm consists of 3 medium long beeps within a
1-second period. This sound sequence will repeat every 25 seconds until the medium priority
equipment alarm condition is cleared.

Audible Indicator Sound Control Priorities

Only one audible alarm or informational tone may sound at a time. However, more than one type of
alarm condition may occur at the same time (e.g., a critical battery condition could begin while a no
breath condition is occurring). Therefore, the 9847V software uses a set of rules to determine the
priority of these sounds. These sound control rules are described in Table 5.
NOTE: These priorities assume the audible alarms have not been temporarily or permanently
disabled using the Audible Alarm Disabled button.
Condition
Low Battery Level
• Critically Low Battery Level
or
• Pulse Oximeter Sensor
Alarm or
• CO Sensor Alarm
2
(medium priority equipment
alarm)
• SpO high or low or
2
• Pulse rate high or low or
• Inadequate pulse quality or
• No breath (high priority
animal alarm)
Table 5: Audible Indicator Sound Control Priorities
Normal sound operation; steadily lit Low Battery indicator only.
Medium priority audible alarm unless a prior high priority animal
alarm is latched. When latched, it will sound a high priority animal
alarm.
If a critically low battery condition occurs and the audible alarms
are either temporarily or permanently disabled, the audible alarms
will become re-enabled. A medium priority alarm will sound unless
there is a high priority alarm condition in effect.
The medium priority sound cycle will not be restarted should a new
equipment alarm condition occur; the existing sound will be
maintained.
The onset of a high priority animal alarm condition will cause the
initiation of the high priority animal alarm.
If a medium priority equipment alarm condition occurs after the
onset of a animal alarm condition, the animal alarm state will be
latched and will not be overridden by the equipment alarm.
When the animal alarm condition is cleared and there is an
equipment alarm in effect, then the medium priority sound will be
started.
Sound Control Priorities
31