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3.2 MMAW (Stick/MMA) Welding
Insert the cable plug with electrode holder into the
“+” socket on the front panel of the welding
machine, and tighten it clockwise.
Insert the cable plug of the work return lead into
the “-” socket on the front panel of the welding
machine, and tighten it clockwise
After connecting the welding leads as detailed you will need to switch the power switch on the
back panel to “ON”
Select MMA by switching to the MMA welding mode. There is voltage output at both output
terminals.
Set the amperage on the machine suitable for the electrode being used. Ensure you check that
you have the electrode polarity correct.
Please see below a guide to amperages required.
Electrode Diameter(mm)
Welding Current(A)
Electrode Diameter(mm)
Welding Current(A)
2.0
40-60
4.0
130-180
2.5
60-95
5.0
180-220
3.2
95-130
6.0
220-260
AverageThickness of
Material (mm)
Suggested Electrode
Diameter (mm)
AverageThickness of
Material (mm)
Suggested Electrode
Diameter (mm)
1.0-2.0
2.5
5.0-8.0
4.0
2.0-5.0
3.2
8.0 >
5.0
Summary of Contents for TM250C
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