I am new to the forum, and new to welding. I just received my MillerMatic 211 welder.
I asked this question to Miller tech 10 days ago, and received no replies.
Can a MM 211 be powered from a modified sine wave inveter?
I know how to do the load calculations, I am not asking about how to build a battery bank, or size the wire. I am asking if the electronics in a MM 211 will freak out with a Modified sine wave. I have read other similar threads.
I know one can weld with 3 batteries wired in series, or with a 12 volt readywelder, or even use a special welding alternator and weld box. I am not asking about that.
I have a Wagan 3000 watt running/ 6000 watt peak modified sine wave inverter installed in my truck. I also have a 20 amp gfci 120 volt receptacle hardwired to the inverter on the rear of my truck. I have used this inverter to run grinders, drills, chop saws, table saws, skillsaws, coffee makers, and task lighting. It works great. I have less than 6 feet of 0000 (4 ought) cable feeding the inverter from the battery bank. I also have a high output alternator.
I do not expect to be welding bridges with this setup. 16 guage to 1/8 inch steel quick repairs.
I do have a nice big and heavy generator that will run the welder for heavy jobs. 90% of the time The welder will be used from grid power.
I don't mind risking letting the smoke out of the inverter, however i would be extremely upset if I let the smoke out of my new welder.
Can a MillerMatic 211 be powered from a modified sine wave inverter?
Can a MultiMatic 200 or other inverter based welder be powered from a modified sine wave inverter?