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Display INOPs
INOP Message, Indication
Indep.Dsp Malfunc.
Indep.Dsp NotSupp.
Intell.Dsp Malf.
Intell.Dsp Missing
Intell.Dsp Unsupp.
ECG, Arrhythmia, QT and ST INOPs
INOP Message, Indication
Cannot Analyze ECG
Cannot Analyze QT
Cannot Analyze ST
Cannot Analyze STE
ECG Equip Malf
Numeric is replaced by -?-
INOP tone
<ECG Lead> Lead Off
!! <ECG Lead> Lead Off
!!! <ECG Lead> Lead Off
If no ECG lead is measurable,
numeric is replaced by -?-
INOP tone
ECG Leads Off
!! ECG Leads Off
!!!ECG Leads Off
Numeric is replaced by -?-
INOP tone
ECG Noisy Elec <ECG Lead>
ECG Noisy Signal
INOP tone
ECG Out Equip Malf
INOP tone
ECG/Arrh AlarmsOff
!!ECG/Ar AlarmsOff
What to do
There is a problem with the Independent Display. Check the MSL coupling cable then contact your
service personnel.
The monitor does not support a second main display. The monitor software is incompatible. Contact
your service personnel.
There is a problem with the Intelligent Display. Check the MSL coupling cable then contact your
service personnel.
The monitor has lost contact with the connected Intelligent Display. Contact your service personnel.
The monitor does not support the connected Intelligent Display. The monitor software is
incompatible.
What to do
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.
The QT algorithm cannot generate a valid QT value for more than 10 minutes, or 1 minute in the
initial phase.
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.
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.
Contact your service personnel.
The ECG hardware is faulty.
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.
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.
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.
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.
There is a problem with the device connected to the ECG Out connector. Contact your service
personnel.
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.
4 Patient Alarms and INOPs
73

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