What do these adjustments do?

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What do these 2 adjustments do? There on my P&H TIG welder.Lincoln ProMig140
Reply:Can you do an experiment, run an AC arc on a block of aluminum (holding the torch stationary) and adjust these settings to see what they do?Maybe they affect the ease of arc starting or the stability of the AC arc?  Intensity sounds like the "amplitude" of the wave form, like the amount of voltage?Is this a 3 phase welder, maybe phase shift has something to do with 3 phase?
Reply:Would the phase shift have anything to do with the wave?ThermalArc 185MillerMatic 180 w/ AutosetVictor Cutskill Oxy/AcetyleneThermal Dynamics Cutmaster 38and spite!
Reply:I only have a Intensity dial on the Hobart..Its only for A.C.Makes the arc more stable way down low..I've tried it all the way up..Leaves "waves" in your "stack'o dimes"...  So I leave it on "low"  ...zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:I haven't used this welder yet and the previous owner said he left them where they are in the pic. I hope I can try it out soon.Also, it is not a 3phase welder. Here is a pic of my 800lb monster: Originally Posted by pulserCan you do an experiment, run an AC arc on a block of aluminum (holding the torch stationary) and adjust these settings to see what they do?Maybe they affect the ease of arc starting or the stability of the AC arc?  Intensity sounds like the "amplitude" of the wave form, like the amount of voltage?Is this a 3 phase welder, maybe phase shift has something to do with 3 phase?
Reply:I'd do what it says right on the machine: adjust rheostats for best operating conditions. I can only make a (hopefully good) guess but my guess is that "phase shift" will do what is now called "cleaning width" or "AC balance" when it's in AC welding mode and "intensity" is the amount of arc stabilization the high freq. unit will provide.
Reply:As another guess (can you tell these are stabs in the dark?), the phase shift might allow you to syncronize the high freq. "peaks" to fall within the zero crossing of the AC wave.  Depending on how the thing was made (a long time ago I guess) that might have been something they thought was needed.
Reply:forget about guessing, get some material and practise with it, change the settings and run a bead, change again, see what happens, if on AC the phase shift controls your highs and lows which allows the aluminum to be cleaned with shifting of positive to neg during the cycle (AC wave)