37
Although the spray arc transfer itself is almost silent (just a slight hiss), the sound of the pulse is well noticeable. It
sounds, at times, much like an AC TIG welding machine. If you are used to the classic MIG frying bacon sound, the
sounds the Pro Pulse 300 makes will take a little adjustment time to get used to.
Pulsed Stick Welding (Rod Pulse)
An ideal process for pipe welding. Advantages of pulsed Stick welding include:
better arc stability, ability to use large diameter electrodes on thin plate metal, burn through reduction, better drop transfer
control, better weld bead appearance—especially when welding in high frequency (4 to 5 Hz), better gap coverage,
excellent penetration, and ideal for welding pipe with cellulosic electrodes in vertical down position.
V.R.D
Stands for Voltage Reduction Device. V.R.D. is a system which reduces the no-load voltage (OCV). When you
activate the V.R.D., the Pro Pulse 300 reduces the maximum no-load voltage to a lower and safer voltage—normally less
than 18 volts. Used as an additional aid for operator safety and for when safety procedures at work require extra
protection. The V.R.D. function not only makes the welding machine safer, but also makes the stick welding rods harder,
or even very hard in some cases, to light.
To activate the V.R.D., please do the following:
1) Switch the welding machine on.
2) Hold down the Select Mode button (
Fig. 4, Pos. A
) for approximately four (
4
) seconds, and then release the button;
the LED indicating Stick welding mode starts blinking. The V.R.D. is now activated.
Once activated, the V.R.D. mode remains activated even when you turn the machine off and then on again.
To deactivate the V.R.D., please do the following:
1) Switch the welding machine on.
2) Hold down the Select Mode button (
Fig. 4, Pos. A
) for approximately four (
4
) seconds, and then release the button;
the LED indicating the Stick welding mode illuminates solidly (goes from blinking illumination to solid
illumination). The V.R.D. is now deactivated.
Once deactivated, the V.R.D. mode remains deactivated when you turn the machine off and then on again.
Summary of Contents for Pro Pulse 300
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