43
Troubleshooting
Troubleshooting
Problem
Possible Cause
Possible Solution
The device won’t turn on.
Batteries are depleted.
Replace all six batteries.
Batteries are installed incorrectly.
Verify battery orientation, as
illustrated inside battery
compartment or on device label.
The Low Battery indicator is
steadily lit or flashing.
Battery level is low or critically low.
Replace all six batteries.
Incorrect battery installation.
Verify correct battery orientation.
A dash appears in the
leftmost position of the SpO
2
display.
A SpO
2
sensor fault exists
(disconnect, failure, misalignment, or
incompatibility with the monitor).
Verify Nonin-branded sensor is
correctly connected to the device
and the animal; replace sensor if
condition persists.
A non-compatible SpO
2
sensor is
being used.
Replace sensor with a Nonin-
branded Purelight sensor.
The middle digits display
dashes in both the SpO
2
and
Pulse Rate displays.
No SpO
2
signal is detected.
Verify sensor connection.
A sensor failure.
Replace sensor with a Nonin-
branded Purelight sensor.
The displayed pulse rate
does not correlate to the
pulse rate displayed on the
ECG monitor when used
together.
Excessive motion at sensor site may
be prohibiting device from detecting a
consistent pulse signal.
Eliminate or reduce the cause of the
motion
or
reposition sensor to a new
sensor site.
Animal may have an arrhythmia
resulting in some heart beats that do
not detect a pulse quality signal at the
sensor site.
Assess the animal.
Non-compatible sensor is being
used.
Replace sensor with a Nonin-
branded Purelight sensor.
ECG monitor may not be functioning
properly.
Assess the animal.
An inconsistent pulse rate or
a yellow Pulse Quality
indicator during use with
electrosurgical unit (ESU).
ESU may be interfering with pulse
oximeter performance.
Assess the animal. Move device,
cables, and sensors as far away
from the ESU as possible.
The Pulse Quality indicator
blinks yellow with each
pulse.
Quality of pulse signal
at sensor site is inadequate.
Assess the animal. Reposition
sensor
or
select an alternate sensor
site.