Longevity MIGWELD 250 MP - Manual (Page 47)

MIGWELD 250 MP
Stick Electrode Chart Example: E 60 1 3
Strength
60--60,000 psi,
70--70,000 psi
Weld Position
1--All positions: Flat, Vertical, Horizontal, & Overhead
2--Flat Position or Horizontal Fillets Only
3--Flat Position Only
Weld Characteristics
0--Non-low hydrogen, DC Reverse polarity
1--Non-low hydrogen, AC or DC Reverse polarity
2--Non-low hydrogen, AC or DC Straight polarity
3--Non-low hydrogen, AC or DC Either polarity
4--Non-low hydrogen, iron powder coating, AC or DC Reverse polarity
5--Low-hydrogen, DC Reverse polarity
6--Low-hydrogen, AC or DC Reverse polarity
7--Non-low hydrogen, iron powder coating, AC or DC Reverse polarity
8--Low hydrogen, iron powder coating, AC or DC Reverse polarity
Polarity Definition
electrode negative =straight polarity (typical stock machine setup)
electrode positive = reverse polarity
Be sure to observe the electrode manufacturer recommendations regarding polarity. If the weld
appears lumpy, porous or otherwise malformed, change the polarity of the ground cable and the
electrode holder cable. Many electrodes run with in reverse polarity, (DCEP) setting. A few run
with a straight polarity (DCEN). Some will run either way. For reverse polarity (DCEP) stick
welding, swap the electrode holder and ground cable connections.
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