27
Using the 9847 Pulse Oximeter
Audible Critically Low Battery Alarm
The audible critically low battery alarm is a medium priority equipment alarm indicating that the batteries
have reached a critically low level and must be replaced immediately. The 9847 will not monitor patients
after the batteries reach a critical power level. Also during this medium priority alarm, the visible low
battery indicator blinks.
If a high priority patient alarm condition exists before reaching critically low battery level, the audible and
visible alarms will “latch”. A “latched” patient alarm condition will sound a high priority patient audible
alarm. A high priority patient visible alarm indicator that is “latched” for a critically low battery will either
blink (for no breath or pulse quality) or will display three blinking dashes (for SpO
2
or pulse rate).
The audible critically low battery alarm cannot be disabled by the alarm disable switch.
Audible SpO
2
High or Low Alarm
The audible SpO
2
alarm is a high priority patient alarm that sounds (if the audible alarms are not disabled)
when the SpO
2
high or low alarm limits are reached or exceeded. (Also during this high priority alarm, a
visible alarm indication will occur. See “SpO
2
and Pulse Rate Displays” on page 21 for more information.)
The audible and visible indicators will stop when the condition is cleared.
Audible Pulse Rate High or Low Alarm
The audible pulse rate alarm is a high priority patient alarm that sounds (if the audible alarms are not
disabled) when the pulse rate high or low alarm limits are matched or exceeded. (Also during this high
priority alarm, a visible alarm indication will occur. See “SpO
2
and Pulse Rate Displays” on page 21 for
more information.) The audible and visible indicators will stop when the condition is cleared.
Audible Pulse Quality Alarm
The audible pulse quality alarm is a high priority patient alarm that sounds (if the audible alarms are not
disabled) when the pulse signals that are detected are of inadequate pulse quality. (During this high
priority alarm, the pulse quality indicator will blink red as it normally does in inadequate pulse quality
situations, and can be latched (will continue) for the critical battery state. See “Pulse Quality Indicator”
on page 22 for additional information.) The audible and visible indicators will stop when the condition is
cleared.
Audible No Breath Alarm
The audible no breath alarm is a high priority patient alarm that sounds (if the audible alarms are not
disabled) when a breath has not been detected for a period of time exceeding the set no breath delay
time (measured in seconds). (Also during this high priority alarm, the visible no breath indicator blinks.)
If a CO
2
sensor alarm occurs, existing audible and visible no breath indicators will latch (continue). In
most cases, however, during “fixed pitch” breath beep mode, when the airway adapter tube is
disconnected from the CO
2
sensor, the audible and visible no breath (apnea) indicators will stop.
CAUTION:
The critically low battery state overrides the audible alarm disable switch.
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 “audible alarm disabled” indicator will not be illuminated.
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