WS-4R / WS-4L
EN
FIRE AND EXPLOSIONS RISKS
Protect the entire welding area. Compressed gas containers and other inflammable material must be moved to a minimum safe
distance of 11 meters.
A fire extinguisher must be readily available.
Be careful of spatter and sparks, even through cracks. It can be the source of a fire or an explosion.
Keep people, flammable objects and containers under pressure at a safe distance.
Welding of sealed containers or closed pipes should not be undertaken, and if opened, the operator must remove any inflammable or explosive
materials (oil, petrol, gas...).
Grinding operations should not be directed towards the device itself, the power supply or any flammable materials.
GAS BOTTLE
Gas leaking from the cylinder can create a hazard if present in high concentrations around the work area.
Transport must be done safely: Cylinders closed and product off. Always keep cylinders in an upright position securely chained
to a fixed support or trolley.
Close the bottle after any welding operation. Be careful with gas bottles placed in areas of high temperature, or in sunlight.
Cylinders should be located away from areas where they may be struck or subjected to physical damage.
Always keep gas bottles at a safe distance from arc welding or cutting operations, and any source of heat, sparks or flame.
Be careful when opening the valve on the gas bottle, it is necessary to remove the tip of the valve and make sure the gas meets your welding
requirements.
ELECTRIC SAFETY
The machine must be connected to an earthed electrical supply. Use the recommended fuse size.
An electrical discharge can directly or indirectly cause serious or deadly accidents.
Do not touch any live part of the machine (inside or outside) when it is plugged in (Torches, earth cable, cables, electrodes) because they are
connected to the welding circuit.
Before opening the device, it is imperative to disconnect it from the mains and wait 2 minutes, so that all the capacitors are discharged.
Do not touch the torch or electrode holder and earth clamp at the same time.
Damaged cables and torches must be changed by a qualified and skilled professional.
Make sure that the cable cross section is adequate with the usage (extensions and welding cables).
Always wear dry clothes in good condition, in order to be insulated from the electrical circuit. Wear insulating shoes, regardless of the environment
in which you work in.
EMC CLASSIFICATION
These Class A devices are not intended to be used on a residential site where the electric current is supplied by the public
network, with a low voltage power supply. There may be potential difficulties in ensuring electromagnetic compatibility on these
sites, because of the interferences, as well as radio frequencies.
These devices are not compliant with the CEI 61000-3-12 standard. On a public low-voltage power grid, it is the responsibility
of the installer or user of the device to ensure, by checking with the operator of the distribution network, which device can be
connected.
ELECTROMAGNETIC INTERFERENCES
The electric currents flowing through a conductor cause electrical and magnetic fields (EMF). The welding current generates an
EMF field around the welding circuit and the welding equipment.
The EMF fields may disrupt some medical implants, such as pacemakers. Protection measures should be taken for people wearing medical implants.
For example, access restrictions for passers-by or an individual risk evaluation for the welders.
All welders should take the following precautions in order to minimise exposure to the electromagnetic fields (EMF) generated by the welding circuit::
– position the welding cables together – if possible, attach them;
– keep your head and torso as far as possible from the welding circuit;
– never enroll the cables around your body;
– never position your body between the welding cables. Hold both welding cables on the same side of your body;
– connect the earth clamp as close as possible to the area being welded;
– do not work too close to, do not lean and do not sit on the welding machine
– do not weld when you’re carrying the welding machine or its wire feeder.
9
