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wedeld
Newbie
Joined: 12 Jan 2007
Posts: 1
Location: Kansas
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 Posted: Fri Jan 12, 2007 11:04 pm Post subject: current probe scales |
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The current probe scales need to go below 0 amps like in the series 5 software. It's easy to see an open plug wire if you have a negative spike below 0 amps when looking at primary current. As it is 0-20 amps isn't enough information, please bring back the old scales please.
I really like the new version though. |
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wbglee
Active User
Joined: 11 Aug 2006
Posts: 5
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| Posted: Sat Jan 13, 2007 5:29 am Post subject: |
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Like this? You can download this file and import the settings to your library. Become a member and get exceptiomal training and tips from the PICOTOLOGIST.
http://www.autonerdz.com/picokit.htm#_Plus_you_get |
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Autonerdz
Zen Master
Joined: 20 Nov 2002
Posts: 211
Location: Washington State USA
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| Posted: Sat Jan 13, 2007 9:03 pm Post subject: ranges |
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Hi wedeld,
Thanks for sharing the PicoScope 5 file. I agree that you need negative value in your current probe ranges. Neither PicoScope 5 or 6 come like this out of the box. You have to modify the ranges yourself or get a file where someone else has already done it. Best to learn how to do it yourself. The procedure is quite different between the PicoScope 5 and 6 versions. Personally, I think 6 is easier and faster to modify and create custom probe settings.
In your psd file, notice how your amp probe wave is fat at the bottom (until you zoom 20x). This is because your custom range has no negative current value. The amp probe was not zeroed exactly and went a bit negative when there was no current flowing. This is easily remedied in PicoScope 5 by editing the range under Settings/Custom Ranges. Just put some negative value there for that 0-20A range. Make it say -5-20A...or whatever. or create a new range to suit.
PicoScope 6 doesn't show any waveform outside of the scaled range. This isn't a software problem. It's a user issue. You still have to make a range appropriate for the signal.
Wilf,
Thanks for your vote of confidence. As you know, we cover all these issues and procedures for both PicoScope 5 and 6 in our training. We provide comprehensive PicoScope automotive training to users world wide. Our PicoScope training movies are available to our group via web delivery and on CD.
Here is an example introduction to PicoScope 5:
http://www.autonerdz.com/flash/picointro.html |
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