secondary wave form

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secondary wave form

Postby jlim1 » Wed Aug 15, 2007 10:18 pm

Hi Dave, I just purchased a Picoscope 3423, I having problem with secondary king lead or plug lead set up, I have low reading or no reading at all with 20:1 attenuator installed. Is there way to fix it or wrong set up. please inform, James, thanks
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Joined: Wed Aug 15, 2007 9:17 pm

Postby davidj » Thu Aug 16, 2007 2:00 pm

Hi James, The 20:1 attenuator should not be inserted when using either the secondary clamp-on pick up or the COP probe. It would explain the very small signal you are seeing displayed !
Keep the 20:1 attenuator for primary ignition and injector work only. If you use the presets for these measurements you will see (20:1) on the left of the display in the units scale, indicating you need this attenuation for the scale reading to be true.
I hope this helps.
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Location: St. Neots, Cambs, UK

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