
5
English
• %SpO
2
Display
Numeric LEDs display the value of percent oxygen saturation,
calculated using a four beat exponential averaging technique.
(Refer to page 16, Theory of Operation, for information on
averaging.)
• Heart Rate Display
Numeric LEDs display the pulse rate in beats per minute,
calculated by an eight beat sliding averaging technique. (Refer
to page 18 for information on averaging.)
• Perfusion Display
Provides a visual indication of the signal quality, while
blinking at the corresponding pulse rate. It is a method of
alerting the user to changes in the pulse waveform signal that
may affect the SpO
2
data.
Green = good signal amplitude
Yellow = artifact or marginal signal amplitude
Red = inadequate signal amplitude
CAUTION:
The 950 may interpret motion artifact of sufficient amplitude and
regularity as good perfusion (green).
•
Battery Low
Numeric LEDs flash once per second when batteries are low.
Replace the batteries as soon as possible. Refer to page 10,
Inserting New Batteries.
• Finger Removal
A minus (-) sign appears in the left most digit of the %SpO
2
display when the 950 senses that the finger has been removed.
The last measured SpO
2
and pulse rate values freeze for ten
seconds, then the displays go blank.
• The label on the bottom of the 950 lists the model number,
serial number, CAUTION statement, and battery polarity
indicators.
Comentarios a estos manuales