Intended use
Applications
14
099-002060-EW501
19.10.2015
3
Intended use
WARNING
Hazards due to improper usage!
Hazards may arise for persons, animals and material objects if the equipment is not
used correctly. No liability is accepted for any damages arising from improper usage!
• The equipment must only be used in line with proper usage and by trained or expert staff!
• Do not modify or convert the equipment improperly!
3.1
Applications
3.1.1
MMA welding
Manual arc welding or, for short, MMA welding. It is characterised by the fact that the arc burns between
a melting electrode and the molten pool. There is no external protection; any protection against the
atmosphere comes from the electrode.
3.1.1.1 Air arc gouging
During gouging, an arc burns between a carbon electrode and the workpiece, heating the workpiece until
it is molten. At the same time, the molten metal is blown out with compressed air. Special electrode
holders with a compressed-air connection and carbon electrodes are required for gouging.
3.1.2
TIG (Liftarc) welding
TIG welding procedure with arc striking by contact with the workpiece and subsequent removal of the
electrode.
3.1.3
MIG/MAG standard welding
A suitable wire feed unit (system component) is required in order to operate the welding
machine!
Pico drive 4L
Pico drive 200C
Pico 350
Metal arc welding using a wire electrode, where the arc and the weld pool are shielded from the
atmosphere with inert (MIG) or active (MAG) gasses or gas mixtures.
3.1.3.1 MIG/MAG welding
– voltage-sensing
This welding machine supports wire feeders with voltage detection (voltage-sensing). Voltage is supplied
to these wire feeders solely by the welding voltage. The wire feeder has a lead to connect to the
workpiece, to ensure voltage detection and supply.
No other control cables are required. When activated, the power source provides a permanent supply and
welding voltage for the wire feeder.
3.1.4
Voltage reduction device
– VRD machine version
To increase safety, particularly in hazardous environments (like shipbuilding, pipe construction or mining),
the machine is equipped with the VRD (Voltage-reducing device) .
The VRD signal light is illuminated, when
the voltage reducing device is operating without fault and the
output voltage is reduced to a value specified in the relevant standard.
