D - 9
D.2.11 BIS Technical Alarm Messages
Note: XX represents BIS label, for example G, C, LE, LT, RL-RA, L-R, F-R, 1, 2, and so on.
D.2.12 EWS Technical Alarms
Alarm message Default priority Indication on
alarm reset
Cause and solution
BIS Sensor Off Low A Check and reconnect the BIS sensor. If the alarm
persists, replace the sensor.
BIS Electrode XX Off Low A Check the electrode connection, and re-attach
the electrodes if necessary.
BIS Electrode XX Poor
Contact
Low A Enter the
Sensor Check menu, and check the
connections of the sensor and electrodes.
BISx Error High C Replug the module. If the alarm persists, contact
your service personnel.
BIS No Sensor Low A BIS sensor is not properly connected, BIS cable
fails, BISx or BISx4 fails.
1. Check the BIS sensor connection.
2. Replug the BIS module.
3. Replace the BIS cable.
4. Replace BISx or BISx4.
BIS Sensor Too Many Uses Low A Replace the sensor.
BIS Sensor Old Low A Replace the sensor.
BIS XX Signal Quality Too
Low
Low A SQI < 15
1. Check the patient’s condition.
2. Check the sensor position, and its contact with
the patient’s skin.
3. Check that BISx or BISx4 is away from the
electrically radiating equipment.
BIS XX Low Signal Quality Low A SQI < 15
1. Check the patient’s condition.
2. Check the sensor position, and its contact with
the patient’s skin.
3. Check that BISx or BISx4 is away from the
electrically radiating equipment.
BIS Wrong Sensor Type Low A Check or replace the sensor.
BIS Sensor Error Low C Replace the sensor.
BISx Disconnected Low A BISx or BISx4 is not connected properly or fails, or
BIS patient cable fails.
1. Check that BISx or BISx4 is connected properly.
2. Replug the BIS Module.
3. Replace the BIS patient cable.
4. Replace BISx or BISx4.
Reconnect BISx Low A Replug the BIS Module.
Alarm message Default priority
Indication on
alarm reset
Cause and solution
EWS param XX is timeout Low A The manually input parameter is timeout. Input a
parameter numeric again.
EWS score needs to be
confirmed
Low A Confirm to save or give up current score.