4 Patient Alarms and INOPs
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Display INOPs
ECG, Arrhythmia, QT and ST INOPs
INOP Message, Indication What to do
Indep.Dsp Malfunc. There is a problem with the Independent Display. Check the MSL coupling cable then contact your
service personnel.
Indep.Dsp NotSupp. The monitor does not support a second main display. The monitor software is incompatible. Contact
your service personnel.
Intell.Dsp Malf. There is a problem with the Intelligent Display. Check the MSL coupling cable then contact your
service personnel.
Intell.Dsp Missing The monitor has lost contact with the connected Intelligent Display. Contact your service personnel.
Intell.Dsp Unsupp. The monitor does not support the connected Intelligent Display. The monitor software is
incompatible.
INOP Message, Indication What to do
Cannot Analyze ECG The arrhythmia algorithm cannot reliably analyze the ECG data. Check the ECG signal quality of the
selected primary and secondary leads. If necessary, improve lead position or reduce patient motion.
Cannot Analyze QT The QT algorithm cannot generate a valid QT value for more than 10 minutes, or 1 minute in the
initial phase.
Cannot Analyze ST The ST algorithm cannot generate a valid ST value. Possible causes are large variations in the measured
ST values for consecutive beats, or ventricular paced beats. Review the ECG signal quality and the ST
measurement points.
If the patient has a ventricular pacemaker, ST analysis is not possible.
Cannot Analyze STE The STE algorithm cannot generate valid ST elevation values. Possible causes are large variations in
the measured ST values for consecutive beats, or ventricular paced beats. Review the ECG signal
quality and the ST measurement points.
ECG Equip Malf
Numeric is replaced by -?-
INOP tone
Contact your service personnel.
The ECG hardware is faulty.
<ECG Lead> Lead Off
!! <ECG Lead> Lead Off
!!! <ECG Lead> Lead Off
If no ECG lead is measurable,
numeric is replaced by -?-
INOP tone
Not all the required leads for ECG monitoring are connected. Check the ECG connections and make
sure that the electrode indicated by <ECG lead> is attached [e.g. RA, LA, LL, RL, V or C electrodes].
With EASI lead placement all 5 electrodes must be connected, and with Hexad lead placement all 6
electrodes must be connected.
ECG Leads Off
!! ECG Leads Off
!!!ECG Leads Off
Numeric is replaced by -?-
INOP tone
Check that all of the required ECG leads are attached, and that none of the electrodes have been
displaced. The INOP may also be caused by a saturated or overloaded ECG amplifier.
ECG Noisy Elec <ECG Lead> The ECG signal from the named ECG electrodes [RA, LA, LL, RL, V (or C)] is noisy. Check the ECG
connections and make sure that the electrode indicated is attached.
ECG Noisy Signal
INOP tone
The ECG signal is too noisy. Check that the electrodes are properly placed and have not dried out.
Remove any possible sources of signal noise (such as power cords) from the area around the cable and
the patient.
The ECG signal may be saturated or overloaded.
ECG Out Equip Malf
INOP tone
There is a problem with the device connected to the ECG Out connector. Contact your service
personnel.
ECG/Arrh AlarmsOff
!!ECG/Ar AlarmsOff
All ECG alarms have been switched off, or the HR alarm source is not ECG. To resume ECG alarm
generation, switch ECG alarms on or select ECG as the alarm source.