Rev. 3.1 5.ECG 93
BM5 (CS,CX) User’s Manual
and the correct ECG cannot be obtained.
If the contact is bed before the expiration date on the package, replace the electrode with a
new one.
To obtain a stable ECG wave form rub the skin with “skin Pure” skin preparation gel or
tincture of Benzion.
Shall use only the CE certified disposable electrode.
Choosing an ECG lead for Arrhythmia Monitoring
It is very important to select a suitable lead for arrhythmia monitoring.
Guidelines for non-paced patients:
QRS should be tall and narrow(recommended amplitude > 0.5mV)
R wave should be above or below the baseline (but not bi-phasic)
T wave should be smaller than 1/3 R-wave height.
The P-wave should be smaller than 1/5 R-wave height.
For paced patients, in addition to the above,:
Not wider than the normal QRS
The QRS complexes should be at least twice the height of pace pulses.
Large enough to be detected, with no re-polarization.
To prevent detection of P-waves or baseline noises as QRS complexes, the minimum detection
level for QRS complexes is set at 0.15mV. Adjusting the ECG wave size on the monitor
display(gain adjustment)does not affect the ECG signal which is used for arrhythmia analysis. If the
ECG signal is too small, you may get false alarms for asystole.
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