User's Manual

www.masimo.com 65 Masimo
Chapter 6- Troubleshooting
Troubleshooting Measurements
Symptom Potential Causes Next Steps
Low signal
quality.
Sensor is damaged or
not functioning.
Improper sensor type
or application.
Excessive motion.
Low perfusion.
• Verify Sensor type and size and
re-apply sensor. See Directions for Use
for Sensor.
• Check and see if blood flow to the site
is restricted.
• Check the placement of the sensor.
Re-apply sensor or move to a different
site.
• Replace Sensor.
• Minimize or eliminate motion at the
monitoring site.
• Set to Maximum Sensitivity. See
Sensitivity Modes on page 30 of the
Operator's Manual.
Difficulty
obtaining a
reading.
Interference from line
frequency induced
noise.
Misaligned sensor
Inappropriate sensor or
sensor size.
Excessive ambient or
strobing light.
Excessive motion.
• Verify/set 50/60hz menu setting. See
Operator's Manual for Root.
• Verify Sensor type and size and
re-apply sensor. See Directions for Use
for Sensor.
• Check and see if blood flow to the site
is restricted.
• Check the placement of the sensor.
Re-apply sensor or move to a different
site.
• Minimize or eliminate motion at the
monitoring site.
• Shield the sensor from excessive or
strobing light.