If only it could be that simple ... the wire resistance is changing as a function of temperature. For the Kanthal A1 wire, it is not changing too much though. But it is still a good and easy sanity check measurement.
Bob On Tue, Feb 3, 2015 at 1:16 PM, David Roberson <[email protected]> wrote: > The variac is the best way to be sure of the results. Another > alternative would be to measure the RMS current and square that and > multiply by the load resisance. Even a chopped waveform will give accurate > results with that method. > > The PCE830 is designed to take that into consideration unless it is of > little value. > > Dave > >
