HTP Invertig 313, Руководство пользователя

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14) Glossary
Arc-Force Related to amps and volts when welding. When stick welding, the Pro Pulse 300 power source produc-
es a CC, or constant current, output; in other words, the machine holds a constant amperage level, while the voltage varies
according to the arc length, or the distance between the rod and the work surface—longer arc lengths increase voltage
and shorter arc lengths decrease voltage. Increased voltage (a long arc length) keeps the puddle more fluid and the arc
more stable, while decreased voltage (a short arc length) allows you to achieve better metal transfer and a wetter weld
quality. The decrease in arc voltage, however, does pose the risk of extinguishing the rod, which is where arc-force comes
into play.
When you set arc-force and your arc voltage begins to drop while welding due to a short arc length, arc-force increases
your amperage (not you voltage) to give the weld puddle more drive and to keep the rod lit, and burn in (or burn
through) deeper, without snuffing out the arc. Arc-force is an adaptive-dynamic process. If, for instance, you select 50%
arc-force and set your welding machine to 100 amps, a decrease in arc voltage will cause the amperage to increase auto-
matically up to 150 amps (as needed and only when you meet certain voltage drop conditions; you will NOT run at 150
amps continually). Likewise, if you weld at 100 amps and set arc-force to 200%, the amperage can increase, under certain
conditions, up to 300 amps. At a 200% setting, drops in arc voltage will cause the amperage to climb faster than if would
if set at 50% arc-force. Essentially, with arc-force set, you will not see the voltage go up at all if you hold the correct arc
length, and if you hold the arc length too tightly, your amperage will increase, as needed, so the rod stays lit. Of course,
you cannot watch the machine’s display and weld at the same time, but you will hear the difference if/when arc force
kicks in—our inverter welding machines sound unique, especially when arc force kicks in.
Hot-Start A burst of amperage for a very short time—typically less than one ( 1 ) second to help light the rod, or start
the arc. When you set hot-start, you select a percentage of the welding current. For instance, if you set the machine to
weld at 100 amps and then set hot-start to 30%, for a fraction of a second the machine puts out 130 amps to help light the
rod and start the arc.