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Low Battery Indicator
When the batteries are low, the low battery indicator, a yellow LED, will be
steadily illuminated. (Identified by the
symbol; see Figure 2 on page 4.)
Replace the batteries as soon as possible.
When the batteries are critically low, the low battery indicator will flash and
the pulse oximeter will not operate. The digital displays will go blank, and the
pulse quality indicator will blink yellow or red, but not green. Replace the
batteries immediately.
Sensor Fault Indication
If the 920M PLUS determines that a sensor fault exists (a sensor disconnect
or dislodgment, or a sensor failure) or if a pulse oximeter sensor signal is no
longer detected, a dash (-) appears in the left-most digit of the SpO
display.
2
The readings that are displayed will freeze for 10 seconds if the pulse
oximeter sensor fault or the inadequate signal continues.
If the sensor fault or the inadequate signal is not corrected, the frozen
readings and the left-most dash will be replaced by dashes in the middle digit
of both the SpO
and the pulse rate displays, 10 seconds after the first dash
2
appeared.
When the sensor fault or the inadequate signal is corrected, the SpO
and
2
pulse rate displays will return to normal operation.
16
Detailed Operation
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