Nonin 9847V, Operator'S Manual, Page: 36 / 58

29
Using the 9847V Pulse Oximeter
No Breath Alarm
The audible no breath alarm is a high priority animal 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 No Breath indicator blinks.
If a CO
2
sensor alarm occurs, existing audible and visible No Breath indicators latch (will 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 indicators stop.
When a breath is again detected, the audible and visible No Breath indicators stop. The no breath
delay timer starts when the CO
2
sensor is connected into the 9847V and the system is not in setup
mode (i.e., when the lower bar is lit on the CO
2
bar graph).
Pulse Oximeter Sensor Alarm
The pulse oximeter sensor alarm is a medium priority (equipment) audible alarm that sounds when
the pulse oximeter sensor is either disconnected, dislodged, or a pulse oximeter sensor failure occurs.
Also during this medium priority alarm, visible indicators occur. The audible and visible pulse oximeter
sensor alarm indicators stop when the condition is corrected.
CO
2
Sensor Alarm
The CO
2
sensor alarm is a medium priority (equipment) audible alarm. Conditions that may cause the
audible equipment alarm include:
• The CO
2
sensor is unplugged.
• The airway adapter tube is removed from the CO
2
sensor.
• The light path is blocked.
• A CO
2
sensor failure occurs.
Also during this medium priority alarm, a visible indication occurs (a CO
2
sensor fault) where the third
and sixth bars on the CO
2
bar graph are steadily lit (see “CO
2
Bar Graph” on page 25). The audible
and visible CO
2
sensor alarm indicators stop when the condition is corrected.
Audible and Visible Indicator Functions During Alarm Conditions
Table 4 summarizes the audible and visible indications that occur during the equipment and animal
alarm conditions.
NOTE: These rules assume the audible alarms have not been temporarily or permanently
disabled using the Audible Alarm Disabled button.
Table 4: Audible and Visible Indicator Functions During Alarm Conditions
Alarm Condition Audible Indication Visible Indication
Low battery level None Low battery indicator steadily lit.
Battery level critically low Medium priority alarm
a
,
unless audible high
priority animal alarm is
latched.
• Battery indicator blinking.
• Latched prior high priority animal alarm.
• All other visible indicators off (the device
is unavailable for use).