EN
1 - GENERAL INFORMATION
1.1 - PRESENTATION OF THE INSTALLATION
The system consists of a modern direct current power source for the
welding of metals, developed via application of the inverter. This special
technology allows for the construction of compact light weight power
source with high performance that make it an excellent work tool suitable
for all types of coated electrodes; cellulosic and aluminum included,
thanks to the possibility to setup Hot Start and Arc Force parameters.
The unit is equipped with over voltage, over temperature and anti-sticking
functions which protect the power source even in the harshest working
conditions; it is also enables the TIG welding with Lift Arc. The unit is
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solution to achieve conformance to the limitation of the harmonic current
for equipment connected to public low voltage network.
Other PFC advantages are:
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maximising electronic components lifetime,
increased motor generator compatibility,
works with long primary cables.
In addition to these characteristics this model has the VRD function. VRD
stands for: "Voltage Reduction Device". The VRD is a risk reduction device
for the welding unit that considerably reduces the risk of an electric shock
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welding and supplies low voltage to the welding terminals in 1,5 second
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automatically reduces the secondary circuit voltage between the welding
terminals to less than 15 volts when the unit is not working.
The VRD switches ON the power supply for welding when it detects that
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All manuals and user guides at all-guides.com
GENERAL INFORMATION
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1.2 - WELDING SET COMPONENTS.
PRESTO 300MV is delivered in a cardboard box.
This packing is comprised of:
1 power source,
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1 operator's manual,
1 safety instructions.
2
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