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5 OPERATION
•
tungsten electrodes
•
suitable filler metal, if necessary
5.4
MMA (SMAW)-welding
Connection of welding and return cable
The welding power source has two terminals, one plus and one minus pole, for the
connection of the welding and the return cable. Connect the welding cable to the pole
indicated on the package of the electrode to be used.
Connect the return cable to the other terminal. Fit the earth clamp of the return cable to the
work-piece and make sure there is good contact between the work-piece and the return
cable terminal on the welding power source.
5.5
Overheating protection
The power source has two thermal overload trips which operate if the internal temperature
becomes too high. A fault code is shown in the panel. They reset automatically when the
temperature has fallen.
5.6
Connection to cooling unit (only valid for Tig 2200i)
Only those persons who have appropriate electrical knowledge
(authorized personnel) may remove the safety plates to connect or
carry out service, maintenance or repair work on welding
equipment.
See installation instructions in the instruction manual for the cooling
unit.
5.7
Turning on the power source
Turn on the mains power by turning the mains switch to the "1" position.
Turn the unit off by turning the switch to the "0" position.
Whether the mains power supply is interrupted or the power unit is switched off in the normal
manner, welding data will be stored and is available next time the unit is started.
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