GE Dash 3000 Operator's Manual page 192

Monitoring Bispectral Index (BIS)
Message
INCOMPATIBLE SENSOR
BIS ERROR
PATIENT ISOELECTRIC
REPREP SENSOR
SENSOR CHECK IN PROGRESS
SENSOR ERROR
SERVICE BIS
SIM CONNECTED
SQI BELOW 50%
SQI TOO LOW
18-8
Cause
The sensor is not compatible.
Hardware failure.
No EEG activity detected for several
minutes.
Sensor impedance/status failure.
A self test is in progress.
Sensor failure.
Hardware failure.
A BIS demonstration device is connected to
the patient interface cable.
The signal quality is low.
The signal quality is low.
Dash™ 3000/4000/5000
Solution
Reconnect or replace the sensor, PIC cable
or BISx.
Contact service.
Check the patient and sensor
Press firmly on each sensor electrode for
five seconds. If the impedance check fails,
reposition or replace the sensor, PIC cable
or BISx.
This is a normal procedure message.
Replace the sensor.
Contact service.
This is a normal procedure message.
The system is unable to attain high quality
EEG signal. Run sensor self-test to confirm
sensor impedances are in range. If not, re-
prep or replace the sensor or the PIC cable.
2000966-386D