WF-201
T AC/DC
© Weldclass 2019 | E.&O.E.
19
4.7
MMA/Stick Arc Parameters/Characteristics Settings
NOTE: The following parameter settings are only available in MMA/Stick welding mode.
Figure 13
1.
Press ‘Selection’ knob down (19) until the desired Arc Parameter Setting Indicator Light (33,34 or
35) is lit.
2.
Rotate the ‘Selection’ knob to adjust the Setting
4.7.1
Current / Amps (33)
This is the main welding current.
4.7.2
Hot Start Adjustment (34)
Hot Start setting is adjustable from 0 – 100%. Hot start provides extra power when the weld starts to
counteract the high resistance of the electrode and workpiece as the arc is started. It makes igniting the
electrode easier and prevents it from sticking when cold.
4.7.3
Arc Force Adjustment (Stick)
Arc Force setting is adjustable from 0 – 100%. Sometimes called ‘Dig’ or ‘Arc Control’. A Stick welder is
designed to produce constant output current (CC). This means with different types of electrode and arc
length; the welding voltage varies to keep the current constant. This can cause instability in some
welding conditions as Stick welding electrodes will have a minimum voltage they can operate with and
still have a stable arc.
Arc Force control boosts the welding power if its senses the welding voltage is getting too low. The
higher the arc force adjustment, the higher the minimum voltage that the power source will allow. This
effect will also cause the welding current to increase. 0 is Arc Force off, 100 is maximum Arc Force. This
is practically useful for electrode types that have a higher operating voltage requirement or joint types
that require a short arc length such as out of position welds.
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