
22
Using the 9847 Pulse Oximeter
Alarm Limit Review
When the alarm limit review button is pressed and held, the patient alarm limits in effect for
no breath delay time (in seconds), SpO
2
, and pulse rate, as well as the breath beep pitch
setting will display in sequence for approximately 2 seconds in the order and format shown
in Table 3. If the button is released, the review mode is exited and normal operation is
resumed.
During the alarm limit review only the SpO
2
and pulse rate displays will be affected. The current SpO
2
and pulse rate measurements will be displayed after completing the limit review. If a critical battery state
exists, the alarm limit review sequence will not appear.
NOTE:
Pressing and holding the alarm limit review button can be used to review alarm limits and
to activate an event marker.
Pulse Quality Indicator
The pulse quality indicator blinks once for each pulse while measuring oxygen saturation. The pulse
quality indicator changes color to indicate changes in the pulse waveform signal that may affect the SpO
2
data.
The pulse quality indicator may blink one of three colors:
•
Green
indicates that the pulse waveform signal is of good quality and the SpO
2
and pulse rate data
are accurate.
•
Yellow
indicates that the pulse waveform amplitude is marginal or that the pulse oximeter has
detected artifact. Although the SpO
2
and pulse rate data may be acceptable, corrective measures
should be considered if the indicator continues to blink yellow frequently. To improve the signal
quality, try repositioning the sensor, try a different sensor type, eliminate patient movement, or
improve circulation at the site by massaging the area.
Table 3: Alarm Limits Displayed During an Alarm Limit Review
Parameter
Appears in SpO
2
Display
Alarm Limits
(Default Values Are Shown)
No Breath Delay (seconds)
nbd
20
Oxygen Saturation Low Limit (%)
02L
85
Pulse Rate Low Limit (beats/minute)
H
L
50
Pulse Rate High Limit (beats/minute)
H
H
200
Oxygen Saturation High Limit (%)
02H
OFF
Breath Beep Pitch (fixed or variable)
FPt
OFF (fixed pitch off)
CAUTION:
The device may misinterpret motion artifact as good pulse quality.
%SpO
2
!