DazyWeb Laboratories
WM-400
(Soundcard) AC Wattmeter
WM-400 version 1.00
***** FEATURES *****
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~ Soundcard Based AC Line Wattmeter
~Requires external line isolation hardware for voltage and current sensing
as shown in the help file (can be previewed without this hardware).
~ Simultaneous readouts for AC Volts, AC Amps (0-30) and frequency
~Readouts for both true rms watts and VA
~Read Power Factor and Crest Factor for both V and A
~ Autoscales both levels and timebase
~ Manual level per channel and timebase per channel pairs if desired
~ Displays Volts, Amps waveforms or both
~ Uses 11025 sample rates for frequency count accuracy
~ User initiated reference level Set per channel pair for calibrating soundcard (requires outboard reference)
~ Save scope views as .bmp's for post-editing or use in docs