ECG waving timing

I wikied to find that the PQRST signal is roughly 500mS.  That signal I captured earlier was 500 uS long, 2 orders of magnitude too short.  The amplitude is also very wrong.  Obviously I made a very wrong guess.

Summary Of Normal Durations And Amplitudes Of The EKG - EKG Basics # 2

http://faculty.etsu.edu/arnall/www/public_html/heartlung/lectures/ekg2.html

1mm = 40ms duration or 0.1mV amplitude

P Waves

Normal Duration : 2.5 mm ( * 40 ms = 100 ms)
Normal Amplitude : 2.3 mm (* 0.1 mV = 0.23 mv)

PR Intervals

Normal Duration : 3-5 mm

Q Waves

Normal Duration : .75 mm - 1.0 mm
Normal Amplitude : <25% of the R wave amplitude

QRS Complex

Normal Duration : <3.0 mm
Normal Amplitude : Variable

ST Segment

Normal Amplitude : 1-2 mm
Normal Duration : 2-3 mm

T Wave

Normal Duration : 2 mm
Normal Amplitude : < 5 mm in Limb Leads & < 10 mm in Precordial Leads

.END