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ADVANCEMIG 200
MMA Mode Parameters
Hot Start (0-10)
Hot start provides extra power when
the weld starts to counteract the high resistance of
the electrode and workpiece as the arc is started.
Arc Force (0-10)
An MMA welding power source 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 MMA 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 mini-
mum voltage that the power source will allow. This
effect will also cause the welding current to increase.
0 is Arc Force off, 10 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.
TIG Mode Parameters
Two / Four Touch (2T/4T - 2T)
In this mode the trigger
is pulled and held on to activate the welding circuit,
when the trigger is released, the welding circuit stops.
4T is known as ’latching’ mode. The trigger is pulled
once and released to activate the welding circuit,
pulled and released again to stops the welding circuit.
This function is useful to longer welds as the trigger
is not required to be held on continuously.
Pre Flow (0-2S)
This controls the period shielding gas
will flow for when the torch is triggered before the arc
starts. This purges the work area of atmospheric gas
which could contaminate the weld before the weld
starts.
Down Slope (0-10S)
When the trigger is released, the
welding current will reduce gradually over the time
selected down to 0. This allows the operator to com-
plete the weld without leaving a ‘crater’ at the end of
the weld pool.
Post Flow (0-10S)
This controls the period of time
the shielding gas continues to flow after the arc is
stopped. This protects the weld area and torch tung-
sten from contamination while it is still hot enough
to react with atmospheric gases, after the weld is fin-
ished.
Welding Mode Screen
This is the display screen for setting and displaying
the main welding parameters in each welding mode.
Press the ‘enter’ button to access this screen from
any other menu. This display has the following func-
tion in each welding process mode:
MIG/MAG Synergic
- Before welding left knob adjusts
target current and right knob adjusts v/- from
the standard synergic program. During welding, dis-
plays output voltage and current.
MIG/MAG Manual
- Before welding left knob adjusts
wire feeding speed and right knob adjusts voltage.
During welding, displays output voltage and current.
Stick/ MMA & TIG Modes
- Before welding, left knob
adjusts welding current. During welding, displays
output voltage and current.
