B-1

OPERATION

B-1

SAFETY PRECAUTIONS
Read entire section before operating this unit.
Additionally, read the V300 operator’s manual before
operating this unit.
ELECTRIC SHOCK
can kill.
•Do not touch electrically live parts such
as output terminals or internal wiring.
•Insulate yourself from the work and
ground.
•Always wear dry insulating gloves.
------------------------------------------------------------------------
FUMES AND GASES
can be dangerous.
•Keep your head out of fumes.
•Use ventilation or exhaust to remove
fumes from breathing zone.
------------------------------------------------------------------------
WELDING SPARKS
can cause fire or
explosion.
•Keep flammable material away.
•Do not weld on containers that have
held combustibles.
------------------------------------------------------------------------
ARC RAYS
can burn.
•Wear eye, ear and body protection.
------------------------------------------------------------------------
Observe additional Safety Guidelines detailed in the
beginning of this manual.
GENERAL DESCRIPTION
The MIG Pulser is a hand-held “pendant” type GMAW
Pulsing option for the V300 Pro and V300-I power
sources. It is a simple, easy-to-use unit, with a mini-
mum of controls. It supports the GMAW-P (pulse MIG)
process on mild steel, stainless steel, and aluminum.
The MIG Pulser is supplied with a cable and brackets
for connection and mounting to a V300. An optional
control cable extension is also available which allows
the MIG Pulser to be placed up to 25 feet from the
V300.

RECOMMENDED PROCESSES AND

EQUIPMENT

The MIG Pulser/V300 combination can run the follow-
ing processes:
GMAW-P
.035 steel, 100 - 700 IPM (90/10 Ar/CO2)
.045 steel, 75 - 400 IPM (90/10 Ar/CO2)
.035 stainless steel, 100 - 700 IPM (98/2 Ar/O2)
.045 stainless steel, 75 - 350 IPM (98/2 Ar/O2)
3/64 5356 Aluminum, 150 - 600 IPM (Ar)
The MIG Pulser/V300 combination can be used with all
wire feeders recommended for the V300 (LN-25, LN-7
family). It will also work with the Magnum Spoolgun
with limitations. No other options or accessories are
required or supported. Note:Using the MIG PULSER
with a LN9-GMA requires installation of the voltage
board bypass jumper on the LN9.

OPERATIONAL FEATURES AND

CONTROLS

The MIG Pulser has the following controls as standard:
Arc Length (continuously variable), Peak Current
(choice of Low, Medium and High), and Background
Current (choice of Normal and High).
MIG PULSER
WARNING