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Gys Expert 130 Manual

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Thank you for choosing our product ! To get the best of your equipment, please read this manual carefully.
The EXPERT 130 and 220 DV are traditional welding units for MMA electrode welding with direct current (DC). They can weld rutile, cast-iron, basic and
stainless steel electrodes. They work on a 230V or 400V (EXPERT 220 DV only) single-phase power supply.
P
OWER SUPPLY
–
START UP
• This machine is delivered with a 16A plug type EEC7/7. The machine must be plugged on a 230 V (50-60Hz) socket with earth. The absorbed
effective current (I1eff) is shown on the machine, for maximal using conditions. Check that the power supply and its protection (fuse and/or
circuit-breaker) is compatible with the necessary current during use. In some countries, the change of plug can be necessary to allow a use at
maximal conditions. The charger must be installed so that the mains plug is accessible.
• To start the equipment, turn on the potentiometer to the desired current position, the power indicator lights then. Put the potentiometer on "O"
for standby mode.
• Connect the earth clamp and electrode-holder cables in the quick-plugs. Respect the polarities indicated on the electrode packaging.
• This Class A equipment is not intended for use in residential locations where the electrical power is provided by the public low-voltage supply
network. There may be potential issues in ensuring electromagnetic compatibility in those locations, due to driven as well as radiated disturbances.
• These machines comply with the standard EN61000-3-11 if the maximum permissible system impedance Zmax at the interface point of the user’s
supply:
Model EXPERT 130 EXPERT 220 DV
Zmax admissible 0.34 Ohms 0.34 Ohms
This machine does not comply with the standard CEI 61000-3-12. Before connecting the unit to the public low voltage network, the user must be
sure that he is permitted to connect them.
• Do not use the machine in an area containing metallic conducting dust.
U
SE
1. Plug the earth lead and the electrode holder in the welding machine and connect it to the mains supply (to use the EXPERT 220 DV on a 230V
socket, install the plug supplied with the machine).
2. Ensure the earth lead is connected to the workpiece (as close as possible to the welding area).
3. Set the machine at its minimum then switch it on (switch ON for the EXPERT 130 / commutator 230-0-400V for the EXPERT 220 DV). A light
indicates the unit is switched on.
4. Select the appropriate electrode which should approximately the same thickness as the piece to be welded. Then select the appropriate welding
current according to the diameter of the electrode by turning the knob and observing the setting on the scale:
- To increase the power, turn the knob clockwise,
- To decrease the power, turn the knob anti-clockwise.
5. Thermal protection: After a long period of welding or an intensive use, it is necessary to wait until the transformer cools down. These machines
are protected by a thermostat which will automatically cut out the power to the unit to prevent damage during an overload:
- Light switched off: you can weld.
- Light switched on: you must wait.
6. After using the welding unit, turn off the unit with the switch (EXPERT 130) or the commutator (EXPERT 220 DV) and unplug the machine.
M
AINTENANCE
• Refer all servicing to qualified personnel.
• Disconnect the generator and wait until the ventilator stopped before working on the unit. Inside the device, voltages and current are dangerous.
• Two or three times a year, remove the steel cover and blow off the dust with compressed air. Let check the electrical connections (with an
insulated tool) and the insulations by qualified personnel.
• Regularly control the state of the cord. If this supply cable is damaged, it must be replaced by the manufacturer, its after sales service or a
similarly qualified technician to avoid any danger.
A
DVICE
• Respect welding polarities and currents indicated on the electrode packaging
• Remove the electrode from the electrode holder when you do not use it.
• Keep the ventilated louvre passages clean to allow in/out air circulation.
… 5 …


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