Hello Belet and thank you for the post.
Waveforms per second (wfm/s) is not often discussed within our world of automotive but you can find an excellent description here from our Test and Measurement site (T&M) as the explanation applies to our scopes toohttps://www.picotech.com/library/oscill ... date-rates
Accompanied with a forum topic surrounding "Imporved" wfm/s update rateshttps://www.picotech.com/support/topic13967.html
In answer to your question "how many wfms/s can Pico4425 reach?"
the links above indicate our Deep memory USB 3.0 scopes (4425) can achieve 100,000 wfm/s dependent upon a number of factors:
1. The software in use as software is continually updated and improved
2. The number of samples / time frame selected
3. The number of active channels
4. The USB design, USB 2.0 USB 3.0
5. The loading of the USB hardware installed on the PC in use
6. The loading on the PC's resources (PC performance)
7. The implementation of "Rapid Trigger" mode when the scope is capturing data below 1 ms/div
Rapid Trigger mode is activated via the Tools > Preferences > Options
Tab (See image below)
I hope this information is of some help, take care.......Steve