Hey all,
I have an early 1.21GW with software version v2.05 (haven't checked if there's an update yet :p)
I also have a 2 year old fluke 115. I tried to measure some CT Coils with built in burden resistor, to check its resistance. This is where things got funny (due to my lack of understanding). I would have expected to get the value of the copper windings, in parallel to the resistor. Not sure _what_ I'm getting though; as I see a about 8 or 9 ohms, that are constantly changing on the display (walking up, walking down) over 1 or 2 ohms or so on the 1.121 whereas the fluke (with much less digits mind you) was showing something like 20 ohms. Pretty big difference I would think. Could this be caused by _how_ things are measured? Is the coil of influence? I can imagine that the fact that we are measuring ferrite wound coils, an inductor in fact, could throw things off as the inductor 'buffers' energy, and releases it again?