Duty Cycle; Installation; Operation - PROCRAFT 511464 Operating Instructions Manual

DUTY CYCLE

Duty Cycle is the equipment specifications which defines the
number of minutes within a 10 minute period that a piece of
equipment can safely operate.
ECO (MOSFET) ARC machines have a 35% duty cycle at
maximum welding output, which means that it continuously
operates for 3.5 minutes at maximum output during a 10
minute period.
CAUTION: Failure to observe the duty cycle limitations of
this TIG MACHINE can easily damage this equipment, and
will void warranty.
UNPACKING
When unpacking, checks to make sure the following parts
are included.
Inverter welding machine with Ground cable with Clamp
MMA welding cable with clamp If any parts are missing or
broken, please call EACO ELECTRIC at the number on the
cover of this manual.
Preparing Your Work Area
1. You must have a sturdy work table that is open below the
area you are welding. Molten slag will be blown through the
work metal, and must be able to fall away freely
2. Your work table must allow the work metal to be firmly
clamped to prevent it accidentally falling or moving.
The floor and surrounding area of your work site must not
be flammable. A clean cement floor is recommended.
1. The cutting process will eject molten metal slag onto the
floor, and it will scatter for 8-10 feet or more in any direction.
Have an adequate fire extinguisher available if needed.
ASSEMBLY
Grounding the tool
Ground screw (1)
1. Attach a ground wire (not supplied) to the screw in the
lower the back of the machine. Connect the other end of the
wire to an appropriate ground, such as a steel workbench,
steel biding member or grounding electrode.
Connector Instruction
MMA Welding cable and TIG torch socket (1)
Ground socket (1)
1. Ground socket: Plug ground cable to this socket.
2. MMA Welding cable socket: Connect MMA Welding cable
or the TIG cable plug to this socket

INSTALLATION

1. Connect welding tongs with output stud terminal (+)
2. Connect ground clamp with output terminal (-)
3. Connect the protection grounding cable.
4. Turn on the distributing box and the switch on the power
source on the front panel.
5. Start welding.
6. Finish welding.
7. Turn off the switch on front.
8. Turn off the switch of distributing box

OPERATION

Note: Before beginning, please read and understand all
the safety precautions staring on page 1 and especially the
section "Specific Safety Rules" starting on page 3.
Put the metal to be welded on the metal weeding-cutting
table. Ensure the metals to
1. be welded are clean, so good welding efficiency can be
promised.
2. Place the MMA welding unit no closer than six feet from
the work piece to be welded
3. Connect the MMA torch control, Twist to lock in place.
4. Plug in the Grounding Cable into the Ground Connector
on the lower left of the unit front. Twist to lock.
5. Place the metal portion of the welding rod inside the jaws
of the Electrode Clamp. Welding rod types vary for welding
different metals.
6. Hold the MMA torch and orient yourself to one side of
the area to be welded, and move the Welding Helmet Face
Shield (not included, see page 4 item 7) over your eyes.
7. Hold the MMA welding rod down and tilt the rod forward.
8. Stroke the work piece lightly to ignite the arc. Does not
strike like a match? Never tap the electrode wire to ignite the
arc; it will damage the rod.
9. When the arc ignites, tilt the electrode forward and hold it
near the work piece.
If too much current is drawn from the welder; the Thermal
Overload protector will 1. activate, the Overload indicator or
will light, and the welder will turn off until it cools down. It
will automatically reset.
Welding current
Welding current level is determined by the size of electrode
- the normal operating range and current are recommended
in the manual. Typical operating ranges for a selection of
electrode sizes are illustrated in the table. As a rule of thumb
when selecting a suitable current level, an electrode will
require about 40A per millimeter (diameter). Therefore, the
preferred current level for a 4mm diameter electrode would
be 160A, but the acceptable operating range is 140 to 180A.
MMA Welding Tips
Thickness <1 2 3 4~5 6~12 >13
Rod dia. <1.5 2 3.2 3.2~4 4~5 5~6
Current (A) 20~40 40~50 90~110 90~130 160~250 250~400
DANGER! To prevent serious injury and death: If the
operator is not holding the Torch, it must be sitting on a
non-conductive, nonflammable surface.
A: Connect the welding torch with output stud terminal
"+" and work piece with terminal "+" if using alkaline
welding rod.
B: Suggesting fixing welding current according to the
following expressions:
Welding current = (20+6D) ×D
"D" refers to the diameter of welding rod(mm)
* Note: If some other troubles occur when using our welding
machine, please contact with the agency of our company.
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