WeldCorp INVERTER TIG140, Руководство по эксплуатации для владельца

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OPERATION (cont.)
Warning:
Use all precautions required in the safety general manual before operating the
welder, reading carefully the risks linked to the welding process.
ELECTRODE WELDING (MMA)
• Select the proper electrode polarity (direct or reverse) of the electrode (for more
information see the general part of the safety manual and the information on the
electrode packaging). Connect the plugs of the work clamp and the electrode holder to
the sockets of the machine (Fig 1, C and D) as function of the polarity, rotating the attack
in order to ensure a good grip.
• Connect the work clamp to the work piece to be welded trying to establish a good
point of contact between the metal and the clamp, as close as possible to the area to be
welded, insert the electrode into the electrode holder.
• Insert the power supply plug into the power outlet and turn on the welding machine by
pressing the switch (Fig 1, E) to the I position.
• Select the welding current (FIG 1, A) as a function of the type of electrode selected.
• Start the welding operation using all the necessary protections for the security.
• When welding is completed, turn off the machine and release the electrode from the
electrode holder
THERMAL PROTECTION
The duty cycle is the fraction or percentage of a ten-minute cycle that a power source may
be used without overheating. For example, a welding machine with 150 amp - 30% duty
cycle can weld continuously at 150 amps for 3 minutes, and then must cool down during the
remaining 7 minutes to prevent overheating, with the ambient temperature of 40 ‘C.
Using the machine with the proper duty cycle according to the selected welding current
allows to prevent overheating. If the machine is used for hard work cycle the thermal
protection device will protect the machine from overheating. In case of overheating of the
machine the yellow LED indicates that the thermal protection is on, it is possible to start
welding again once the LED is off.
MAINTENANCE
All maintenance and repairs must be carried out by an authorised repair agent. Any non-
authorised repairs will void warranty. Personnel in compliance to the norm (IEC 60974-4).