HTP Pro Pulse 220 MTS, Owner'S Manual

Page: 7 / 30

7
Electrical Connection
Your Pro Pulse 220 MTS operates on single-phase, 230 volt power (208-240 volt). The machine draws 35 amps out
of the wall when operating at a MIG or TIG welding output of 200 amps. 200 amps of Stick welding output requires
40 amps of 230 volt input. If you operate the machine on a generator, it needs to be a clean power generator with a
minimum of 8500 watts (8500 watts must be the continuous rating or running watts rating of the generator, NOT the
peak rating or starting watts rating of the generator) for MIG or TIG operation. Stick operation requires a 10,000 watt
generator. If you operate the machine in MIG or TIG on an extension cord, the wire size of the cord needs to be at
least 10AWG and should not exceed a length of 100’.
General Characteristics
Our new pulsed multi-process MIG welding machine, which features electronic adjustments controlled through a
microprocessor, allows you to achieve excellent welding quality, thanks to the advanced technologies applied. The
microprocessor circuit controls optimize the transfer of the arc, irrespective of the load variation and of the
impedance of the welding cables.
This machine is a synergic welding machine.
The key feature of a synergic welding machine is the ease of set up. In the past, you needed charts from wire
manufacturers to determine wire speed and voltage, as well as CTWD (contact tip to work distance) of different
welding applications, which ultimately determined the arc length and also indicated which shielding gas to use. With
the Pro Pulse 220 MTS, this information is preprogrammed, readily available, and displayed to you. The Pro Pulse
220 MTS features an LCD that allows you to select a synergic program for a specific wire, such as steel, aluminum,
stainless steel, silicon bronze, etc. Once you select a program, the machine tells you which gas to use and then allows
you to select the thickness of the material being welded. After selecting the synergic program and the material
thickness, the machine automatically sets the correct wire feed speed (in inches per minute, or IPM) and the matching
voltage to achieve the best welding results. Of course, since you will encounter atypical situations, especially during
repairs on used or dirty material, the Pro Pulse 220 MTS gives you the option to adjust the weld either colder or
hotter by reducing or increasing the voltage.
The Pro Pulse 220 MTS also offers an ST-arc function. The ST-arc function reads welding parameters back to the
welding machine live (while welding). The function monitors the arc length and keeps the arc length constant, while
allowing the stick-out (CTWD) to vary. ST-arc, essentially, allows the new welder to focus on the location of the
weld, as well as the travel speed, and also allows the experienced welder to keep a perfectly uniform weld bead and
uniform heat input, which enables the welder to achieve good welds in tight corners—a feat that couldn’t be reached
previously with conventional welding equipment.
What is pulsed process MIG welding?
Pulsed process welding is a form of welding that happens in spray arc transfer, while classic MIG welding is done in
short arc transfer and sounds somewhat like frying bacon. Spray arc welding is a lot hotter, has excellent penetration,
and is typically very quiet (mostly a quiet hissing with an occasional crackle). This form of welding is so hot that it
typically can only be used in flat position, though sometimes in horizontal position, as well. Pulse gives you the
option to run the process out of position while retaining the same desirable characteristics of deep penetration—a
virtually spatter-free weld with excellent bead appearance—but does so while enabling you to join materials of
different thicknesses at increased travel speed, all while lowering the heat input and distortion.
Pulsed process MIG welding is different than pulsed TIG welding. In the MIG process, filler material has to be added
constantly to maintain the welding arc, and this sets the ground rules for the pulse function. When pulsing with TIG,
you have the ability to adjust peak current, background current, pulse-on time, and pulse frequency. When using
pulsed process MIG, on the other hand, you typically only have the choice of pulse-on or pulse-off. However, the Pro
Pulse 220 MTS offers peak pulse (in some programs, under certain conditions, and up to 300 amps), pulse-on time, as
well as background current—all preprogrammed, according to scientific studies for best results, at the factory. The
pulse frequency adjusts with the wire speed; slower wire speeds have a lower frequency, while higher wire speeds
have a higher frequency.
Because of the pulse frequency, electronic interferences may occur. For this reason, it is forbidden for people with
PACEMAKERS to use or come near the machine. Dur ing the research and development process at HTP, we