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Picoscope 3425 max. sample rate

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Picoscope 3425 max. sample rate

Postby driesdendas » Tue Jan 05, 2016 2:12 pm

All,

When I want to make a 2-channel measurement with the picoscope 3425 the max. sample rate is stuck at 5 MS/s.
If I could believe the manual the max. sample rate should be 10 MS/s (20 MS/s with 1 channel).
Is there any possibility to increase the sample rate @ 10 MS/s (2-channels)?
I'm Using the Picoscope 6 beta v 6.11.4.929 software.

Thanks,

Dries
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Re: Picoscope 3425 max. sample rate

Postby AndrewA » Thu Jan 07, 2016 1:38 pm

Hello Dries,

Yes the 3425 has a max. sample rate of 20 MS/s with 1 channel or 10MS/s with 2 channels.
The reason you are getting a lower sample rate maybe because the setting you are using in PicoScope.
Could you please post a psdata file of your setup, with a capture of your signal.
File menu -> save -> enter file name (file type should be set on psdata)` select current waveform.
Regards Andrew
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Re: Picoscope 3425 max. sample rate

Postby driesdendas » Thu Jan 07, 2016 2:58 pm

Hello Andrew,

Attached you'ill find the set-file.
I suppose when the scope can reach 10 MS/s (@ filelength 1s) i can multiply the filelength by 5?
So if i use a SR of 100 KS/s my file would be 100s...

Thank you!
Attachments
setfile_des.pssettings
(3.39 KiB) Downloaded 54 times
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Re: Picoscope 3425 max. sample rate

Postby AndrewA » Wed Jan 13, 2016 12:18 pm

Hello Dries,

The 3425 with Picoscope software will only use a sample rate of 10MS/s (two channels enable) at 1ms/division and faster.
Picoscope software tries the best it can to match the settings in the software to that of the connected scope.

With your setting file; At 100ms/div (1 second capture) with 1MS (two channels enable) the view properties panels shows-
sample interval 1us (1MS/s) number of samples 1M.
This is the faster time base setting picoscope you can get the scope to operate in streaming mode.
Please note the there gaps between waveform buffers, normally few milliseconds.

Are you trying to do a 1 second capture? You won't able to do this at 10MS/s with this scope.
Regards Andrew
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