Pooh wrote:Hi there,
I have just started to find my way around my new automotive kit. The software has installed fine (version 5.09.5 as supplied with the scope), and I can get it to do what I want (in general).
Send me an email and I will send you a PicoScope Tips article you may fine helpful
My question relates to the use of the automotive drop down menu. I seem to get some strange settings, what am I doing wrong?
When I select the relative compression settings drop down menu, it tells me in the IE help window to fix the 600A current probe to suitable leads. I’m happy so far. I close the IE help window and see that the scope has been configured to the 20A scale. I can re-set it but isn’t the point of the drop down menus to set it to something suitable? I have had the wrong range selected from other drop downs this is the only one I noted.
I really have no idea here. That's not how my 5.09.5 works. Selecting that option from the PicoScope automotive drop down menu should pull up a sample wave in PicoScope and the scaling should be 0-600A.
If I choose the primary ignition drop down, I can set the –100 to 400V range. If I then choose the primary vs secondary drop down menu, the –100 to 400V range is no longer available. Why?
Because the custom ranges are stored in the recalled psd file. When you pull up a different saved capture you get a different set of ranges. When you select from the automotive drop down, it opens a psd file and sets up your PicoScope for that capture.
When does the max samples per scope trace get re-set? I frequently set it to 32000 and when I loose the detail of high speed events having taken various measurements, it is often 2500.
Same reason. This setting is stored in the psd file. When you load up a previous capture, you get the settings that were used for that capture. Just go back in and change it back. If you want PicoScope to start up with 32,000 samples (like I do) then configure and File/Save settings. This will load up the program configured that way. Still though, recalling a saved psd will reconfigure to that capture.
Charging current: I was happily measuring 11.9A load plus a bit of noise on the 20A range. I believe this so far. I changed the probe range to 60A, and also changed the scope range to 60A. I was reading 0A flat (I didn’t move the probe or turn any load off etc).
Make sure you are using the correct probe and setting for the range you select. Look in Settings/Custom ranges and open the range you want to use. Then compare to your probe settings. The 20A range is configured for 100mv per amp and the 60A range for 10mv per amp. The 600A range is configured for the high amp probe at 1mv per amp. If none of these ranges suit your needs then you can make one of your own
Not sure why you had zero amps in the 60A range. You should have had a match there. Some of those psd files from the drop down come up with the vertical zooms on. Make sure they are off to 1X and scroll the capture up and down to be sure you have the capture in view. The zooms are not reset when you change ranges. Also make sure the probe switch is fully switched and you have zeroed the probe after changing settings. Hope this helps.
Have I not configured something correctly?
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Pico Technology — automotive lab scopes and diagnostic equipment