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bt38m2ea
Slope up
The slope up function means that, when the TIG arc strikes, the current rises slowly
to the set value. This provides ‘gentler’ heating of the electrode, and gives the welder
a chance to position the electrode properly before the set welding current is reached.
Pulse current
The higher of the two current values in the event of pulsed current.
Current
Background ti-
me
Pulse current
Background cur-
rent
Pulse time
Time
TIG welding with pulsing.
Pulse time
The time the pulse current is
on
during a pulse period.
Background current
The lower of the two current values in the event of pulsed current.
Background time
Time for background current which, along with the time for pulse current, gives the
pulse period.
Slope down
TIG welding uses “slope down”, by which the current falls ’slowly’ over a controlled
time, to avoid craters and/or cracks. when a weld is finished.
Gas post--flow
This controls the time during which shielding gas flows after the arc is extinguished.
Balance
Setting the balance between the positive (+) electrode and negative (--) electrode
half period during alternating current welding (AC).
Lower balance value produces more heat on the electrode and better oxide
break--up on the workpiece.
Higher balance value produces more heat to the workpiece and better penetration.
Frequency
Lower frequency (alternating current) transfers more heat to the workpiece and
produces a wider weld pool.
Higher frequency produces a narrower arc with higher arc force (narrower weld
pool).
Summary of Contents for Tradestig AC 220
Page 26: ...Assembly instructions 26 bt33m11a 26 ...
Page 27: ...R0460 475 074 E090227 P27 27 p ...
Page 28: ...Edition 090227 Diagram 28 bt33e ...
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Page 30: ...R0460 475 074 E090227 P30 30 p ...
Page 35: ...Tradestig AC 220 Tradestig AC 220a R0460 475 074 E090227 P27 35 bt38mab1 ...
Page 37: ...Tradestig AC 220 Tradestig AC 220a R0460 475 074 E090227 P27 37 bt33sac1 AH 0859 ...
Page 39: ...Tradestig AC 220 Tradestig AC 220a R0460 475 074 E090227 P27 39 bt33sad1 ...
Page 41: ...R0460 475 074 E090227 P41 41 p ...
Page 45: ... 45 notes NOTES ...
Page 46: ...R0460 475 074 E090227 P46 46 paut ...
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