5
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.
•
Amber
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 capacity is low, the display will blink once each second. If the batteries are not
replaced, they will reach critically low capacity and the display will blink dashes. The Pulse
Quality LED will blink red or amber, not green. After 10 minutes of critically low battery
capacity, the display will go blank.
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. 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.
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