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Troubleshooting Guide
Symptoms
Numeric displays
blinking at one second
intervals.
950 will not activate.
Minus (-) sign in left
most digit of the
%SpO 2 display.
Unable to obtain green
perfusion.
Possible Cause
Batteries are low.
Batteries incorrectly
inserted.
Depleted batteries.
950 not attached to
patient.
950 turned off while on
finger.
Poor signal.
Finger removal.
950 not functioning.
Low patient pulse
strength.
Finger poorly perfused.
Finger not correctly
positioned.
Possible interference
from:
•
arterial catheter
•
blood pressure cuff
•
electrosurgical
procedure
•
infusion line
Circulation reduced
because of excess
pressure between 950
and hard surface after
inserting finger.
Excessive ambient light.
Excessive patient
motion.
950 applied to polished
fingernail.
22
Possible Solution
Replace batteries
immediately. See page
10.
Check batteries. See
page 9 and 10.
Replace batteries. See
page 10.
Apply 950 to patient.
See page 11.
Remove 950 from
finger, then reinsert
finger.
Reposition finger.
Reinsert finger.
Call RESPIRONICS
Technical Support.
Reposition 950 on
finger.
Reposition 950 on
finger.
Reposition 950 on
finger.
Reduce or eliminate
interference.
Allow 950 and finger
to rest comfortably on
surface.
Reduce ambient light.
Reduce patient motion.
Remove fingernail
polish.
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