Ok, so my new 200dx showed up last Thursday night to my delight. After unpacking and setting it up on my cart and then wiring the plug. I turned it on and just made sure it would power up. Then off to bed. Anyway on to my questions.
1)Does the amp knob on the unit control the max output and then the pedal knob control the amps inside those paramiters?
2)Or does the knob on the pedal override the amp knob on the machine allowing max amps?
I ask these questions as I only got a chance to weld a few welds with it and didnt have a lot of time to tinker with it. I was welding on some 1/8 in. wall steel tubing and had it set to dc. with the torch lead hooked up to the negative terminal on the machine as the manual said. It seemed as though i had to go full throttle on the pedal to even get a puddle started and to maintain it. The weld seemed very thin and was barely tieing in the 2 pieces(butt weld). Seemed as though the amperage was pretty low. At first the amp knob on machine was at roughly 80 amps and started with pedal knob at about half way. then turned all the way up on pedal and was finally able to start and maintain a puddle yet like I said it was still pretty weak.
3) Is this the correct set up?