SECTION 7 DIAGNOSTICS AND TROUBLESHOOTING
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7-7
E28 Message:
Operator Action:
SQI Too Low For BIS
The Signal Quality Index is unacceptable therefore the Trend
variable cannot be calculated. Check Sensor. This may
occur as a result of artifact such as those generated from
motion or eyeblinks.
E29 Message:
Operator Action:
BIS < Low Alarm Limit
E30 Message:
Operator Action:
BIS > High Alarm Limit
E31 Message:
Operator Action:
Isoelectric EEG Detected
No discernible EEG activity is detected for several minutes;
SR = 100. Check the patient. Check the leads for proper
connection.
E32 Message:
Operator Action:
Review Data Lost
The contents of the data memory were lost and have been
re-initialized. If the error persists, the monitor requires
service.
E33 Message:
Operator Action:
Operating on Battery Backup
The AC power has been lost and the monitor is running on
the battery. The battery keeps the monitor operating for
approximately 20 minutes.
E34 Message:
Operator Action:
Battery Power Low
There are only a few minutes of battery life left. Restore AC
power to avoid automatic shutdown.
E35-E39, E43, E44,
E48-E65, E69-E73, E75,
E78-80, E87- E89, E110
Message:
Operator Action:
Software Error
The monitor requires service.
E40 Message:
Operator Action:
Setup Memory Write Error
Can’t save Setup data to non-volatile memory. Monitor
requires service.
E41 Message:
Operator Action:
Real-Time Clock Write Error
Can’t save time/date or data to non-volatile Real-Time Clock.
Monitor requires service.
E42 Message:
Operator Action:
Can’t Save Setup
This message should only appear when running on battery
power, the battery is low, and the user attempts to save setup
data. Restore AC power or save Setup data later.
E43, E44 (See E35)
Software Error
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