britishtrident
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| posted on 11/9/15 at 06:10 PM |
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K;16 Ignition Oscilloscope screen caps
Might of use for reference. Taken from Rover K eu3 engine with coil on plug + wasted spark
Ignition Secondary negative spark voltage & coil primary current ramp at idle.
Spark duration 1ms, peak primary peak 10 amps.
[img] [/img]
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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britishtrident
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| posted on 11/9/15 at 06:19 PM |
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Same engine showing spark parade for no4 cylinder showing firing and wasted sparks
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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britishtrident
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| posted on 11/9/15 at 06:21 PM |
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Coil current ramp in detail.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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DW100
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| posted on 14/9/15 at 11:38 AM |
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This your new toy?
What scope was it? Did it come with an amps clamp and HT pick-up?
Is it possible to invert the HT capture so it is displayed in the conventional way?
The HT parade looks very odd, I wonder if it is because the sample rate isn't high enough?
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britishtrident
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| posted on 16/9/15 at 07:33 AM |
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My ancient and pretty useless Vellerman HPS10 got zapped so I bought a Hantek 1008 and also a DSO nano 201v3.
The DSO nano after upgrading the firmware to Ben-F is just the thing for doing quick and dirt jobs like tracking down duff wheel sensors or
no-starts. However my version has no USB card can't save waveforms or stetups.
The Hantek 1008 while exactly not the fastest scope world is a great tool for the money, the software takes a lot of getting used to and the help
menu is useless but comes with a menu giving software presets for automotive diagnostics and an ignition secondary pick-up and for £53 inc P&P
delivered in 48hrs from a UK supplier is a lot of bang per buck. At that price if get zapped it is no big deal. The real weak point with is the
software it took me about 3 hours to get the drivers installed and switch the software to English. As it comes out the box it has all 8 channels
switched on and the processor is overloaded, but once the number of running channels is cut to a sensible number the speed becomes adequate to car
work.
Re-spark parade the Hantek will invert the signal but I only found it yesterday it was buried deep in the menu as a math function menu. The sparks
parade on the zoomed out image is a bit odd but it seems to be display problem rather than a data capture problem with the Hanteck software, when
zoomed on in each spark event looks normal.
I am using a Hanteck CC65 current probe --- nice bit of kit price has come down a lot at less £40 from eBay I couldn't resist.
I have a COP pick-up probe on order (£30) from Scantool direct so that should be interesting.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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