
20
Troubleshooting
The displayed pulse rate
does not correlate to the
pulse rate displayed on
the ECG monitor.
Excessive motion at the sensor
site may be prohibiting the device
from detecting a consistent pulse
signal.
Eliminate or reduce the cause
of the motion
or
reposition the
sensor to a new sensor site.
The patient may have an
arrhythmia resulting in some
heart beats that do not detect a
pulse quality signal at the sensor
site.
Assess the patient.
A non-compatible sensor is being
used.
Replace the sensor with a
Nonin-branded Purelight
sensor.
The ECG monitor may not be
functioning properly.
Assess the patient.
An inconsistent Pulse
Rate or an amber Pulse
Quality display during the
use with electrosurgical
unit (ESU).
The ESU may be interfering with
the pulse oximeter performance.
Assess the patient. Move the
device, cables, and sensors as
far away from the ESU as
possible.
The Pulse Quality LED is
blinking amber with each
pulse.
The quality of the pulse signal at
the sensor site is inadequate.
Assess the patient. Reposition
sensor
or
select an alternate
sensor site.
Numeric display
segments are missing.
Defective LEDs.
Discontinue use of the device.
Degradation of device
performance.
Electromagnetic interference
(EMI).
Remove the device from the
EMI environment.
Problem
Possible Cause
Possible Solution