3 Patient Alarms and INOPs
86
BIS INOPs
INOP Message, Indication What to do
BIS CABLE INCOMPAT
INOP tone
The semi-reusable sensor cable connected is unknown or not supported by your software revision.
Replace it with a Philips-supported sensor cable.
BIS CABLE USAGE
INOP tone
The semi-reusable sensor cable has exceeded the maximum number of uses. Replace the cable.
BIS DSC DISCONN
INOP tone
DSC is not properly connected OR either DSC or BIS engine may be faulty.
Make sure that the DSC is properly connected to the BIS Engine. If INOP persists, replace DSC with
a known good one of the same type.
If INOP persists replace BIS engine.
Silencing this INOP switches the measurement off.
BIS DSC INCOMPT
INOP tone
DSC is not supported by the BIS engine or new DSC connected to an old BIS engine. A software
upgrade may be required. Contact your service personnel.
BIS DSC MALFUNC Electrocautery used during self-test OR malfunction in the DSC hardware.
Make sure not to use electrocautery during the self-test procedure. Disconnect and reconnect the DSC
to the BIS engine. If the INOP persists, replace the DSC or contact your service personnel.
BIS DSC UPDATE
INOP tone
DSC update currently being carried out. This INOP will disappear when the DSC update is finished.
Do not disconnect the DSC during the update. No action is needed.
BIS ELECTR. DISC.
INOP tone
One or more electrodes are not connected to the semi-reusable sensor cable. Check all electrode
connections.
BIS ENGINE DISCONN
INOP tone
BIS engine not connected OR Module Cable defective.
Make sure that the Module Cable is properly connected. If INOP persists, replace the Module Cable.
Silencing this INOP switches the measurement off.
BIS ENGINE INCOMPT
INOP tone
BIS engine software is not supported. A software upgrade may be required. Contact your service
personnel.
MP20/30 - BIS engine not supported.
BIS ENGINE MALFUNC
INOP tone
Malfunction in the BIS engine hardware. Disconnect and reconnect the BIS engine. If the INOP
persists, replace BIS engine.
BIS EQUIP MALF
INOP tone
There is a malfunction in the BIS hardware. Unplug and replug the BIS module. If the INOP persists,
contact your service personnel.
BIS HIGH IMPEDANCE
INOP tone may sound
Impedance of one or more electrode(s) is above the valid range, most often caused by bad skin
preparation. Check the sensor montage and press the electrode pads firmly. If this INOP persists,
replace the sensor(s) in question using correct skin preparation.
If INOP persists, contact your service personnel.
BIS IMPEDANCE CHCK
INOP tone may sound
The Cyclic Impedance check is running. It will stop automatically if all impedances are within the valid
range. If any electrodes do not pass the impedance test, check the sensor montage and press the
electrode pads firmly.
To manually stop the Cyclic Impedance Check, select Cyclic Check off in the Setup BIS menu.
BIS ISOELECTRC EEG No discernible EEG activity is detected for longer than one minute.
Check the patient. Check that the electrodes are properly connected.
BIS LEAD OFF
INOP tone may sound
One or more electrodes have no skin contact and therefore impedances cannot be measured. Check
the sensor montage and press the electrode pads firmly.
If this INOP persists, replace the sensor(s) in question, using correct skin preparation.
BIS OVERCURRENT
INOP tone
Unplug and replug the BIS module or, f or the MP20/MP30, disconnect and reconnect the BISx from
the Interface board. If the INOP persists, contact your service personnel.
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