Problem
Unable to obtain a
green pulse
display on the
bargraph, cont'd.
Frequent or
steady pulse
quality indication.
34
Possible Cause
The sensor is applied
incorrectly.
There is possible
interference from one
of the following
sources:
• arterial catheter
• blood pressure cuff
• electrosurgical
procedure
• infusion line
The red LED is not lit
in the sensor's finger
insertion area.
There is excessive
ambient light.
The Model 7500FO is
applied to a polished
or artificial fingernail.
The red LED is not lit
in the sensor's finger
insertion area.
Excessive patient
motion.
Possible Solution
Apply the sensor correctly.
Reduce or eliminate any
interference. Make sure that the
sensor is not placed on the same
arm being used for other patient
therapies or diagnostics (e.g.,
blood pressure cuff).
Ensure the sensor is securely
attached to the Model 7500FO.
Check the sensor for any visible
signs of deterioration.
Contact NONIN Customer
Support.
Shield the sensor from the light
source.
Apply the sensor to a finger without
artificial or polished nails.
Position the sensor at a different
site.
Ensure the sensor is securely
attached to the Model 7500FO.
Check the sensor for any visible
signs of deterioration.
Contact NONIN Customer
Support.
Reduce patient motion.
Troubleshooting