LifeWatch V - Page 120

120
Medical Module
ECG
ECG sample rate transmission
250 samples /sec
Sample resolution
12 bits
Heart Rate
HR measurement range
40 to 240 bpm
HR accuracy
± 5 bpm or 10% whichever is greater
R-R interval measured range
225 to 2000 msec
R-R interval measured resolution
± 2 msec
R-R interval accuracy –
4 msec
QRS detection sensitivity
> 98 %
QRS detection predictability
> 98 %
Stress Level Analyzer
Number of R-R intervals which have to be measured is variable
≥40
SPO2
Oxygen saturation range:
70 to 100 %
Pulse rate range:
18 to 300 pulses per minute
Measurement wavelengths:
Red 660 nanometers
Infrared 910 nanometers
Accuracy SPO2
Standard deviation ± 1 digits
Maximal Error ± 2 digits