44
Troubleshooting
Note
: If these solutions do not correct the problem with your device, please contact Nonin Technical
Service at (800) 356-8874 (USA and Canada), +1 (763) 553-9968, or +31 (0)13 - 79 99 040 (Europe).
Pulse Quality indicator does
not blink green.
Inadequate pulse signal
or
the sensor site is poorly perfused
or
the sensor is not correctly positioned.
Reposition sensor.
Sensor is restricting blood circulation
at sensor site.
Remove restriction to increase blood
circulation at sensor site
or
relocate
sensor.
Circulation is reduced due to excess
pressure between the sensor and a
hard surface.
Allow sensor and tongue/tissue to
rest comfortably on the surface.
Excessive ambient light.
Reduce ambient light.
Excessive animal motion.
Reduce animal motion.
Performance degradation from:
• arterial catheter
• blood pressure cuff
• electrosurgical procedure
• infusion line
Reduce or eliminate source.
The Pulse Quality indicator
blinks red and the SpO
2
and/
or pulse rate displays are
dashes.
Inadequate pulse signal at sensor
site.
Assess the animal. Reposition
sensor
or
select an alternate sensor
site.
Inadequate pulse signal due to
excessive motion.
Reduce animal motion. Reposition
or
relocate sensor.
SpO
2
sensor failure.
Replace SpO
2
sensor.
Numeric display segments
are missing.
Defective LEDs.
Discontinue use of the device.
The lower CO
2
bar is not lit.
CO
2
sensor is not plugged in.
Plug CO
2
sensor in.
Only the third and sixth CO
2
bars are lit.
CO
2
sensor has become
disconnected.
Reconnect CO
2
sensor.
Airway adapter tube is not connected
to the CO
2
sensor.
Verify airway adapter tube is
connected, with windows toward the
sensor.
Light path is blocked.
Replace airway adapter tube.
CO
2
sensor lamp is burned out.
Replace CO
2
sensor.
Degradation of device
performance.
Electromagnetic interference (EMI).
Remove device from the EMI
environment.
Problem
Possible Cause
Possible Solution