Strange oscilloscope functions
John Bond
Posts: 369
Hi Guys
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I’ve had a Parallax Optascope for a while.
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When I first used it, I noticed that the 500mv function gave the same reading as the 1V (1 volt per graduation). I use it manly for fault finding so this wasn’t a problem.
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Last Sunday, I was monitoring a wave form and I noticed the display of the waveform didn’t increase above 10V, regardless of what voltage the actual waveform was. I don't think I've ever measures a signal larger than 10V before...
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Are these problems:
········ A hardware bug?
········ Something in the Windows software?
········ A fault with the device?
Kind regards on this glorious hot humid·day in Kwa Dukuza - South Africa.
John Bond
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·
I’ve had a Parallax Optascope for a while.
·
When I first used it, I noticed that the 500mv function gave the same reading as the 1V (1 volt per graduation). I use it manly for fault finding so this wasn’t a problem.
·
Last Sunday, I was monitoring a wave form and I noticed the display of the waveform didn’t increase above 10V, regardless of what voltage the actual waveform was. I don't think I've ever measures a signal larger than 10V before...
·
Are these problems:
········ A hardware bug?
········ Something in the Windows software?
········ A fault with the device?
Kind regards on this glorious hot humid·day in Kwa Dukuza - South Africa.
John Bond
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Comments
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John R.
8 + 8 = 10
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Chris Savage
Parallax Tech Support
http://forums.parallax.com/showthread.php?p=617175
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Beau Schwabe
IC Layout Engineer
Parallax, Inc.
I had the figure 20 Volts stuck in my brain, not 20v peak to peak... Well, I took it to 32 volts for a short period and it still works fine!!
Regards from Africa on this hot sunny Saturday.
John Bond
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