SECTION 6 DIAGNOSTICS AND TROUBLESHOOTING
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6-5
Status Messages: Possible Causes: Corrective Actions:
Last Sensor Check
Failed /
Restart sensor check
or reconnect sensor
[ 16 ]
1. At least one element of
sensor has too high
impedance, and EXIT
pressed (before sensor
check completes).
2. Incorrect sensor
application.
3. Poor sensor connection.
4. Defective PIC.
5. Defective BISx.
1. Verify Sensor Check
passes.
2. Read Instructions on
sensor package and re-
apply sensor.
3. Check sensor connection.
4. Replace the PIC.
5. Replace the BISx.
Excessive Artifact
Detected in Signal
[ 27 ]
The Signal Quality is less
than half of the level
desirable for optimal
monitoring conditions.
1. Artifact, such as those
generated by motion or
eyeblinks, is causing loss
of EEG recognition.
2. EMG Bar indicates
electrical activity that
may be interfering with
EEG recognition.
3. PIC is defective.
4. BISx is defective.
Note: This message may
occur as the results of
artifact (non-EEG signal)
such as those generated
from motion (patient
movement or eye blinks) or
the presence of electro-
cautery, warming blankets,
or other devices
1. If ARTIFACT label
appears above the EEG
waveform box, attempt to
identify and eliminate
artifact source.
2. If EMG bar is illuminated,
attempt to determine and
eliminate cause.
3. Verify Sensor Check
passes. If not, replace PIC.
4. Replace BISx.
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