Strata EZITIG 205DC, Руководство по эксплуатации

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process including greater weld penetration for less work heat input and greater control of the weld
pool.
The basic theory for setting the base current using pulse mode is that the base current should be
sufficient to maintain the existing molten weld pool, while the peak current is sufficient to melt
new metal in order to move/ expand the molten weld pool. Increased pulse frequency will have
the effect of making the arc more tightly focused which is useful for fine stainless work and
similar. Pulsing can also be used to help move the weld pool, this technique is useful for welding
out of position or with materials that have higher viscosity weld pool. Higher pulse duty setting
will give greater heat input, while lower pulse duty will have the opposite effect.
MMA parameter settings
Hot start (26)
Hot start provides extra power when the weld starts to counteract the high resistance of the
electrode and workpiece as the arc is started. setting range (0-10).
Arc force (24)
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 minimum 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.
3.2 Power supply input Connection
The TIG series of welding machines is designed to operate on a 220V AC power supply.
When the power supply voltage is over the safe work voltage, there are over voltage and under
voltage protection inside the welder, the alarm light will on, at the same time, the current output will
be cut off.
If the power supply voltage continually goes beyond the safe work voltage range, it will shorten the
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EZITIG 205DC