Troubleshooting Guide - Nonin 8600 Operator's Manual

Troubleshooting Guide

Symptom
Numeric displays are
blinking at once per
second
Displayed pulse rate does
not correlate to pulse rate
displayed on ECG monitor
Erratic ♥ display and/or
yellow perfusion indicator
during concurrent use of
electrosurgical
equipment (ESU)
Perfusion is blinking yellow
with each pulse
or ♥
Segments of SpO
2
display are missing
Perfusion indicator is
blinking red and SpO and
2
♥ displays show dashes
Unable to obtain green
perfusion
Alarm going continuously
but SpO and pulse rate
2
are within alarm limits
If any of these solutions do not correct the problem with your 8600, please contact NONIN Customer
Support at (800) 356-8874 or (763) 553-9968.
Possible Cause
SpO or pulse rate alarm condition
2
exists
Excessive motion at sensor site may
be prohibiting the 8600 from acquiring
a consistent pulse signal
Patient may have an arrhythmia
resulting in some heart beats that do
not yield a perfusion signal at sensor
sight
Non-NONIN sensor is being used
ECG monitor may not be functioning
properly
ESU may be interfering with oximeter
performance
Perfusion signal at sensor site is
marginal
Defective LED displays
Inadequate perfusion signal at sensor
site
Excessive motion at sensor site may
be prohibiting 8600 from acquiring a
consistent pulse signal
Low patient pulse strength
Sensor site poorly perfused
Sensor not correctly positioned
Sensor attached too tightly or tape or
other items are restricting perfusion
at sensor site
Circulation reduced due to excess
pressure between the sensor and a
hard surface
Excessive ambient light
Excessive patient motion
Sensor applied to a polished
fingernail
Interference from:
• arterial catheter
• blood pressure cuff
• electrosurgical procedure
• infusion line
Internal circuitry watchdog failed
Possible Solution
Examine the patient:
patient may need medical attention
Eliminate or reduce cause of motion artifact or reposition
sensor to new sensor site where motion is not present
Examine the patient:
condition may persist even though both monitors are
functioning properly if patient's arrhythmia persists
Replace sensor with a NONIN sensor
Examine the patient:
replace ECG monitor or refer to operator's manual for ECG
monitor
Examine the patient:
move oximeter, cables, and sensor as far away from ESU as
possible or refer to the ESU operator's manual
Examine the patient:
reposition sensor or select alternate sensor site
Displayed values may not be reliable; discontinue use of
8600
Examine the patient:
reposition sensor or select alternate sensor site
Eliminate or reduce cause of motion artifact or reposition
sensor to sensor site where motion is not present
Reposition sensor on patient
Reapply sensor, select alternate sensor site, or remove
restrictive material from sensor site
Allow sensor and finger to rest comfortably on surface
Reduce ambient light
Reduce patient motion
Remove fingernail polish
Reduce or eliminate interference
Reset 8600 by turning the unit OFF, wait a few seconds, and
turn the unit ON
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