Biolight Meditech E30 - Disclosed Changes of Measurments Caused by NOISE on Ecgs

E30 Digital Electrocardiograph User’s Manual
22
E.4.2 Disclosed changes of measurments caused by NOISE on ECGs
Global
measurement
Type of added
NOISE
Disclosed differences
Remark
Mean (ms)
Standard deviation
MA_ MA_
P-duration
High 5.8 8.4
AC 0.2 7.2 50Hz
AC 6.0 12.0 60Hz
Baseline 5.6 8.4
PR-interval
High 2.4 8.2
AC -5.6 7.7 50Hz
AC 1.6 6.7 60Hz
Baseline 0.0 9.1
QRS-duration
High 3.2 7.9
AC 2.2 6.4 50Hz
AC 2.0 10.2 60Hz
Baseline 2.2 9.5
QT-interval
High 4.2 7.6
AC 7.4 7.9 50Hz
AC 5.0 6.9 60Hz
Baseline 3.6 8.7