GB
3. Wear ear protectors; welding operations are often noisy and may disturb other person in
the work area.
4. Always wear safety glasse with side shield, paritcularly during manual or mechanical removal of
slag. High temperature slag may be projected to great distances. Pay attention to fellow workers in
the victinity.
5. Position a fire-resistant screen around the welding area to protect persons in the victinity from arc
rays, sparks and slag.
6. Compressed gas cylinders are potentially dangerous; consult the supplier for correct handling
procedurs. Always protect cylinders from direct sunlight, flame, flames, sudden temperature
changes and low temperatures.
1.3. Fire and explosion prevention
Hot slag and sparks can cause fire outbreaks. Explosions and fires can
be prevented by following the procedure described below:
Clear away or protect inflammable objects and substances (wood, saw dust, clothing, paints,
solvents, petrol, kerosene, natural gas, acetylene, propan, etc.) with fire-proof material.
1. Always perform welding operations with caution, even when containers and tubes have been
emptied and thoroughly cleaned.
2. As a preventative measure, keep extinguishing equipment within easy reach, such as fire
extinguishers, water and sand.
3. Never weld or cut containers or pipes.
4. Never weld or cut containers or pipes (even open) containing or wich have contained substances
that could give rise to explosions or other dangerous reactions when exposed to humidity or heat
sources.
1.4. Metal fume hazards
Welding fumes and gases may be hazardous if inhaled for long periods of time.
Follow the procedure below:
1. Install a natural or forced-air ventilation system in the work area.
2. Use a forced-air ventilation system when welding lead, beryllium, cadmium, zinc, zinc-coated or
painted materials; wear a protective mask.
3. If the ventilation system is inadequate, use an air respirator.
4. Beware of gas leaks. Shield gases such as argon are dense than air, and when used in confined
spaces will replace it.
5. In the event of welding operations in confined places (e.g. inside boilers, trenches), the welder
should be externally accompanied by another person. Always observe accident-prevention
procedures.
6. Keep gas cylinders in a well-ventilated area.
7. Close the main valve when gas is not in use.
8. Do not perform welding operations near chlorinated hydrocarbon vapours produce by degreasing
or painting; the heat generated by arc rays can react to form phosgene, a highly toxic gas
9. .Irritation of the eyes, nose and throat are symptoms of inadequate ventilation. Take immediate
steps to improve ventilation. Do not continue welding if symptoms persist
1.5. Positioning the power source
Position equipment in compliance with the following indications:
The operator must have unobstructed access to controls and equipment connections.
Do not position equipment in confined, closed places. Ventilation of the power source is
extremely important.
1. The operator must have unobstructed access to controls and equipment connections.
2. Do not position equipment in confined, closed places. Ventilation of the power source is extremely
important. Avoid dusty or dirty locations, where dust or other debris could be aspirated by the
system.
3. There should be 50cm space about for the welding machine to have good ventilation
4. Equipment (including wiring) must not obstruct corridors or work activities of other personnel.
5. Position the power source securely to avoid falling or overturning.
6. Bear in mind the risk of falling of equipment situated in overhead positions.
7.
Relative humidity: 50% / +40°C i 90% / +20°C
8. Altitude no more than 1,000m
9. The oscillation of the supplied voltage should not exceed
±10% of the rated value
1.6. Transporting the power source
The machine is easy to lift, transport and handle, though the following procedures must
always be observed:
1. The machine may be carried by the power source handle or an nylon strap.
2. Always disconnect the power source and accessories from mains supply before any lifting or
handling operations.
3. Do nat drag, pull or lift equipment by the cables.
2. WELDING MACHINE DESCRIPTION
Small portable welding inverters VARIN are intended to weld with coated rutile or basic electrodes. With
all welding machines VARINS can also be welded by TIG method, of course with installing the proper
TIG torch. Machines VARIN have a wide field of work. VARIN 1305E is intended for smaller servis or
refitting works, VARIN 1605E, 1805E and 2005E gen are suitable for more demanding jobs.
They are built for connecting on 230V / 50Hz but are a little bit modified for some markets to sustain
smaller oscillations in the network. Housing is designed modern and adjusted to technical
characteristics of the machine. On the cover is a handle or belt which enables the user to carry machine
around easily. On the front panel are elements which are necessary for safe and flawless welding
operations. All models are equipped with fan for cooling.
3. ELECTRODE WELDING (MMA)
Put welding cable plug in plus socket on the machine
Put mass cable plug in minus socket on machine and fasten the clamps on material
use potentiometer to adjust the strenght of a current adequate to thickness electrode and
thickness of material to be welded
arc starts with electrdoe touching material to be welded
control the arc with moving electrode closer or aside of material and keep 60
angle regarding the
material
Table: Amperages, as dictated by electrode diameter
VARIN 1305E, 1605E, 1805E,
2005E gen, 2005E
CEL
gen
