Welder Operation - Asist AEIW160-MIGMA Instrucciones De Uso

The electric energy is induced by the equipment with
voltage compensation of the electric energy.
Check if the electric connection is secured in accor-
dance with the respective nameplate. The equipment
is dimensioned for compensation of mains voltage sur-
ges. Surges of ± 15% cause changes in the welding
current by
± 3%. Make sure not to have venting slots on the front
panel blocked and to have them free also during use
of the equipment. This way you can prevent harmful
overheating of the equipment. If a long cable is used,
to avoid voltage drops, a bigger cable diameter is re-
commended. If the cable is too long, it may affect the
power performance. Use an extension cable with len-
gth up to 10 m and diameter of at least 1.5 mm2 , from
10 m to 20 m with diameter of at least 2.5 mm2 , from
20 m to 50 m with diameter of at least 4 mm2 .
Make sure that the air inlet into the equipment is not
blocked or covered so that the ventilation could suffi-
ciently fulfill its function.
To prevent the risk of electric shock, the inverter must
be properly grounded. Grounding must be carried out
by a qualified person.

WELDER OPERATION

● For welding methods (MMA and TIG-LIFT), the
display shows the welding current (when ignited
arc, the actual value is displayed).
● Welding modes are selected using a switch, MIG /
MMA / TIG-LIFT can be selected
Manual metal arc welding (MMA) Strictly observe res-
pective safety regulations. Connect the welding acces-
sories properly to prevent energy losses.
1. Insert the respective electrode into clamping jaws.
2. Insert the grounding cable connection into the nega-
tive clamp (-) with a quick-closing device, and connect
it into the grounding clamp close to the welding spot.
3. Insert the cable connection with an electrode holder
into the positive clamp (+) with a quick-closing device.
4. A DC one-way welding equipment has two connec-
ting options: positive and negative.
To get a reverse polarity, the quick couplers must be
transposed. Namely, the grounding cable coupler into
the positive clamp (+) and the electrode holder coupler
into the negative clamp (-).
5. Set the welding current intensity using the ampere
switch.
6. Turn the mains switch to "I".
7. The inverter is ready for use.
WARNING. Do not turn the inverter off during welding.
This could cause serious damages to the equipment.
In between welding, put the electrode holder aside in
a way preventing injuries or short-circuiting between
the object being welded.
USE OF ELECTRODES (rutile and basic) For less-
-experienced welders, we recommend to use the rutile
electrode. It may be connected much more easily and
maintains the arc well. This electrode is connected to
the negative inverter pole. The grounding clamp of the
object being welded is connected to the positive in-
verter pole.
Specifications
Current
For experienced welders, we recommend the basic
electrode. It is more sensitive for overloading by the
welding current and requires a short arc. However, it
produces a thickly flowing metal and a good meting
bath. This electrode is connected to the positive inver-
ter pole. The grounding clamp of the object being wel-
ded is connected to the negative inverter pole.
Specifications
Current
The electrode diameter must be selected with respect
to the type and characteristic of the welded material.
The welding current depends on the diameter of the
used electrode, material thickness, weld shape and
the welding method. A lower current means a lower
welding depth with a smaller amount of melt. A higher
current means a higher welding depth but also a higher
amount of poorly controllable melt. When welding in
heights above your head and in similarly difficult posi-
tions, use a lower current.
The welding speed should be such that the weld seam
is at least as wide as the electrode diameter. At a low
welding speed, the weld is too wide; at a high speed,
it is not sufficient.
The electrode end should be directed at a small distan-
ce above the material. In the distance approximate to
the thickness of the electrode core. A long arc causes
a low welding depth and significant splashing of the
welding metal.
A short arc causes excessive metal accumulation.
The angle of inclination between the electrode and
materials being welded should be the same; however,
it may be changed depending on the shape of the ma-
terials being welded. The electrode should be inclined
very slightly against the material. When welding wit-
hout the inclination, the slag gets ahead of the welded
joint.
PROBLEMS YOU MAY FACE DURING WELDING
Welding may be affected by various factors. Welding
materials, environmental and power supply factors.
The user must try to comply with all conditions nece-
ssary for welding.
A. Arc welding - essential conditions:
1. Ensure a high quality of electrodes (tip conditions,
etc.)
2. If the electrode is not dry, it causes a low-quality arc,
the number of damaged joints increases and simulta-
neously the quality suffers.
3. If you use an excessively long extension cable, the
voltage supply decreases.
56
1,6 2,0
Ø Ø Ø
30-50 A 40-60 A 60-85 A
2,0 2,5
Ø Ø
45-70 A 65-85 A
2,5