I have a pico 4425 and I also have a fluke i1010 high current clamp . I was wondering if any one knew which probe setting to use on the scope to have the proper conversion take place.Thank you for any help
The probe settings in the Picoscope Automotive software are are specific to the Pico range of current clamps.
However I see from a basic google search that the Fluke clamp has a conversion rate of (1 mV = 1 A.) so simply gauge the measuring range you expect the component you are testing will output and select a voltage scale to suit.
As one volt of output from the clamp will equal 1000 Amps; as you can see it will not have to be a large scale, but as always go with a larger scale if you are not sure and either repeat the test at a more appropriate scale, or simply use the amazingly powerful Pico Zoom feature to see into the detail of the waveform.
Many people do not bother with pre-sets as they know their equipment and what to expect so the voltage scaling is quicker and easier.
Obviously the fluke is a high current relatively "course" measuring instrument and will obviously be fine for starter draw etc. but I would be interested to see some examples of captures you make for lower current components. please post some examples here.
As an example the Pico TA234 (my side arm of choice!) outputs 100mV / Amp
and the TA018 outputs mV/10 mA (100 mV = 1 A) at the 20Amp scale
Tools->CustomProbes and create a New Probe using the equation for your clamp, 1 mV = 1 A if that is the correct one, and you will have a shiny new preset specifically for this device.
Martyn wrote:Tools->CustomProbes and create a New Probe using the equation for your clamp, 1 mV = 1 A if that is the correct one, and you will have a shiny new preset specifically for this device.