here below there is an old post (Tue Jul 01, 2008 12:28 pm) I have already considered.
Our base model 2203 scope can take 2 million samples at 200KS/sec for 10 secs. That is a sample interval of 5uS and is more than enough for your application since it is 400 samples per cycle.
My application is very simple recording of analog signals representing noise picked up by a cable for subsequent Fourier post-processing.
Question 1: considering a low end model (such as the 2203 above) if I use slightly larger sample rate (let's say 400 kS/s), which is the limitation on streaming to disk? I would like to have a continuous streaming of course, but I may guess it is half of those 10 secs...
I see above 2 million samples: so is this an internal storage and hence a hard limit? or is it in some way related to USB and 2203 performances?
Since in such railways applications triggers are not easy to get, I would run PicoScope 6 freely, and then pressing "start recording" when it is needed (very trivial manual trigger).
Question 2: then, PicoScope halts by itself when the limit is reached or something nasty may occur? I know it could depend on the model I'm using, but I remember that with high end models everything was fine.
[the problem is related to a new purchase of a very inexpensive model that may be left on site for long time, of course not in continuous recording!]
Thanks for your attention