There are two similar threads on engine drives going and both reference the FIELDRES YouTube on SA200 VA curve and fine adjustment settings. I did not want to hijack a thread, so I am starting one just on the Bobcat 225, fine adjustment and running 7018 structural groove welds.
One poster replied to one my earlier post that the SA200 is a DC generator, and Bobcat is an AC generator, so the fine adjustment might not be the same.
This morning I re-read Bobcat manual. What I am trying to find out is the arc force difference in the fine adjustment settings, and trying to not run to hot. I practice mock up 3G structural test and 1G, and want to know what to set the machine for. Sometimes at 2nd gear and 7 fine adjustment (Miller recommended) its too hot, and getting undercut. (maybe I am moving to fast, and should slow down). If running uphill, I don't want a runny puddle, and maybe should decrease arc force\voltage. I am I over thinking this????
Also, the Bobcat manual says run 2nd gear, 7 fine adjustment for 1/8 7018, and that should be 110 A. Per my math I get 126; assuming a linear VA curve, which it is not. Here is the work behind the 126 solution. per calibration marking on the fine adjustment 1 thru 10, there should be a change of 8 amps. 7 * 8 = 56. 56 + 70 = 126A.
Thanks for taking to time to read. Any constructive input would be beneficial for the group.