Positive and negative on this welder

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What's up Fellas? What one is positive and which is negative? My manual says there is positive and a negative female jack but I dont know how to identify them and it doesn't just say like the manual makes it out to be. All's it says is what you see in the picture. I want to weld on DC plus but am unsure Attached Images
Reply:As seen in the picture, left is negative, right is positive."DC plus" is the same as your machine's  "Reverse"
Reply:Originally Posted by denrepAs seen in the picture, left is negative, right is positive...
Reply:It might be a little less confusing if it were labeled "WORK" instead of "GROUND" which is commonly associated with negative (-) when dealing with DC.MM200 w/Spoolmatic 1Syncrowave 180SDBobcat 225G Plus - LP/NGMUTT Suitcase WirefeederWC-1S/Spoolmatic 1HF-251D-1PakMaster 100XL '68 Red Face Code #6633 projectStar Jet 21-110Save Second Base!
Reply:Originally Posted by Rick VYep, that right!But it is confusing... You might want to take a couple Magic Markers and make a black (-) under the left socket and a red (+) under the right socket.
Reply:Originally Posted by Oldiron2Maybe it's worth learning  the correct terminology now."Straight Polarity" means Electrode Negative [ or electrode 'straight'   =  (    --    )  ]Reverse Polarity is the other, that obviously being Electrode Positive ( + )
Reply:DCEP (electrode Positive) + (Reverse)DCEN (electrode Negative) - (Straight)  John G.SMAW,GMAW,FCAW,GTAW,SAW,PAC/PAW/OFCand Shielding Gases.  There all here. :
Reply:Hook up the 7018 if it spatters a lot you will know."Si Vis Pacem Para Bellum"Lincoln Idealarc 250 AC/DCMillermatic 251   Syncrowave 300   30A spoolgunLincoln MP210Hypertherm 45(2) LN 25(2) Lincoln Weldanpower 225 CV(4) SA200   1 short hood    SA250    SAM 400
Reply:Originally Posted by Rick VNow you see, I'm the other way round.The no mistake way of saying it is: electrode + or electrode - ... end of strory! All this other descriptive crap such as straight polarity and reverse polarity means nothing - unless you know if the electrode is +ve or -ve! Duh?  So why not stick to the basics instead of inventing or using useless descriptors?
Reply:As has been said, reverse polarity is electrode positive.  Straight polarity is electrode negative.  Anyone ever run self shielded wire on reverse polarity?  It doesn't work worth a ----!  Straight polarity though and my god...it's...it's...so beautiful!  Anyone that says polarity doesn't matter should be punched in the face!
Reply:Originally Posted by Oldiron2Those descriptions have been around for a long time, probably longer then you. They are used in lots of older, great books and in many product descriptions too....
Reply:Originally Posted by Rick VYep, doesn't mean it's right or that we should be stuck carrying their excess bagage! True too that there is often a negative reaction whenever someone tries to simplify long standing complexity! I worked 10 years in International Standards development and came across this attitude all too often.  Often the old terms were set in place by people on the spur of the moment and over the years the terms became set in stone and considered somewhat like the 'ten commandments'.   Sorry but if 'they' got it wrong the first time; why should we have to continue to carry their excess bagage? e.g.If I say, "electrode positive", what does that mean?  Duh, it means the electrode is positive.  It's self explanatory.  Therefore, it is a simple descriptor; nothing more need to be added.On the other hand, if I say, "reverse polarity", what does that mean?  Oh, oh, you have to know that reverse polarity really means electrode positve.  Well, then why didn't you just say "electrode positive" in the first place? Yeah I know we are stuck with it... but that doesn't mean we have to like it or use it!That's why this post exists; a welder could not understand the terminolgy on the faceplate!
Reply:Part of the problem here, is that Edison originally thought electricity flowed from positive to negative. However, electricity is defined as a flow of electrons, which carry a negative charge, and always flow from - to +That concept still confuses a lot of people.Lincoln Idealarc 250 (circa 1962)Lincoln Weldpak 155 w/Mig KitLincoln Squarewave TIG 175