I've been experimenting with my new Thermal Arc 185. When stick welding I have been trying to figure out how to change between DCEN and DCEP. I have the thing set on DC and I have the stinger plugged into the +torch and the work lead plugged into the other receptacle. I think this is DCEN but I don't see anything in the manual specifying this. It just shows how to set the machine up for stick and that's it. I can't find anywhere that shows how to reverse the polarity to DCEP. So the question is how do I change the polarity between DC- to DC+ and when do I use one or the other?
Also, what amperage range would I use for 1/8" mild steel using 6011 or 6013 in 3/32" rod? I haven't seen a chart in the manual either that explains what amps and rod size should be used for different thickness of metal. It would be nice if they provided a chart the way the Miller's do. Since they don't, at least as far as I can tell, is there any place where I can find a chart that would give me ballpark settings for different materials?