engine drive dc tig problem

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hey theirI have a ranger 250 gxt engine drive and am having problems tig welding. I have no expierience welding with tig but through research I have learned a little (not nearly enough tho). Im using argon with 3/32 tungesten wth 3/8 tip. The problem im having is I have the arc going for about ten seconds then the tungesten balls up in the end and goes into the tip. I feel like im burning threw electrodes super fast. Im starting the argon buy hand (dial on torch) 10-15  seconds before and after weld.I  am running at about 80-110 dc neg  and on just little scraps of steel. Is the steel or tungesten possibly conaminated? any tips or in depth manuals would be greatly appreciatedThank you
Reply:Sounds like your polarity is wrong.
Reply:yup sounds like you are DCEP Tig Torch needs to be in the NEG - and Work lead on the Positive +Miller Xmt 350Lincoln Ln-25Ahp 200xSmith Gas Mixer AR/HTig is my Kung FuThrowing down dimes and weaving aboutInstagram http://instagram.com/[email protected]
Reply:When the tungsten burns back into the tip, that is reverse polarity (Electrode +) Your machine could be marked wrong.  Switch the cables.  JGSMAW,GMAW,FCAW,GTAW,SAW,PAC/PAW/OFCand Shielding Gases.  There all here. :