Originally Posted by
performance
As far as the accuracy, I can't say for sure. They aren't that far off...at least from my experience comparing them to expected performance. I have run 1/8" 7018 with 110V. According to Duncan observing the factory testing, Flat out the current models can pull as much as 29 amps on 110V for max performance. I have even run 5/32 7014 on 110V. Yes. I have. But you must have a 30 amp breaker or it will trip. So the one I tested as you can see in the video I put up handles 1/8" 7018 on 110V. No alteration, just an off the shelf unit. But you have to watch arc length or it will pop a 20 amp breaker eventually.
I do know we have worked on the latest ones for a truer read and tried to limit the draw on 110V, which will throttle the max output down, but protect circuits in the welder and on the input side much better.