
13
Displays and Indicators
Displays and Indicators
SpO
2
Display
The SpO
2
display is identified by the SpO
2
symbol. This 3-digit light-emitting diode (LED) display shows
the current oxygen saturation percentage.
Pulse Rate Display
The Pulse Rate display
is identified by the
symbol. This 3-digit LED display shows the pulse rate in
pulses per minute.
Pulse Quality Indicator
The Pulse Quality Indicator display, identified by the
symbol, is a tricolor LED that blinks once for
each detected pulse. The color of the Pulse Quality indicator changes with the pulse strength signal, as
described below.
•
Green
indicates a good pulse strength signal.
•
Yellow
indicates a marginal pulse strength signal. To improve signal quality, reposition the sensor,
try a different sensor type, reduce patient movement, or improve the site’s circulation.
•
Red
indicates an inadequate pulse strength signal. While the Pulse Quality display is red, SpO
2
and
pulse rate values are not updated. After about 10 seconds, the values are replaced with dashes,
indicating that readings are not possible.
Low Battery Indicator
When battery level is low, the low battery indicator
is lit. When the batteries reach critically low level,
the display will be blank and the low battery indicator will blink.
Sensor Fault or Inadequate Signal Display
If the device determines that a sensor fault or inadequate signal condition exists (a sensor disconnect,
failure, misalignment or incompatibility with the monitor) or if a pulse oximeter sensor signal is no longer
detected, a dash (-) appears in the leftmost position of the %SpO
2
display and the alarm indicator blinks
yellow. 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 dash in the
leftmost position will be replaced by dashes in the middle of both the %SpO
2
and the Pulse Rate displays.
When the sensor fault or the inadequate signal is corrected, the %SpO
2
and pulse rate displays will return
to normal operation.