Good point Bob. I always like to have sanity checks to back up main, important measurements.
Dave -----Original Message----- From: Bob Higgins <[email protected]> To: vortex-l <[email protected]> Sent: Tue, Feb 3, 2015 4:09 pm Subject: Re: [Vo]:MFMP testing schedule 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
