Metabo Welding Technology Microprocessor Control, Protection Type Protection Class, Transistor

WELDING GLOSSARY

MICROPROCESSOR

CONTROL

Electronic control (Smart Intelligence) that takes over the control within the current source using state-of-the-art electronics. The advantage is an optimum welding result.

PROTECTION TYPE (PROTECTION CLASS)

Specification for the protection of a device from water (rain) and dirt.

(e.g. IP 23:

2 = protection against foreign matter ≥ Ø 12.5 mm,

3 = protection against splashes of water)

TRANSISTOR

Electronic component (semi-conductor). Works as an electronic on/off switch. Analogue and digital control of the electrical current (large currents) possible with small current intensities.

SAWS

MIXED LIGHT ARC	SECONDARY TIMING
A transition light arc that lies between short	Inverter principle. The mains frequency is
and long light arcs. The drop transitions take	boosted by an electronic unit behind the
place partly in the short circuit (see long arc).	transformer.

EFFECTIVE OUTPUT

Power that is released as welding power by a device. Measured in Watt (W).

SPECIAL-PURPOSE MACHINES

PFC

Power Factor Control. For sinusoidal current consumption from the mains. The advantage is the lower current consumption or a higher welding output at 230 V.

POINT-TO-POINT CONTROL

Electronic control during MIG/MIG welding that automatically switches off the wire feed. The advantage is an even dot size during welding.

PRIMARY TIMING

Inverter principle. The mains frequency

of 50 Hz is transformed to a frequency of up to 100 kHz by an electronic unit in front of the transformer. Advantage: Small and light welding devices.

POTENTIAL SEPARATION

Also referred to as galvanic separation. Insulated structure between two voltages, e.g. mains voltage and welding current.

VOLTAGE

The pressure (force) that enables electrons to flow in a closed current circuit. Measured in Volt (V).

SPRAY ARC

MIG/MAG light arc with fine-drop and short-circuit-free transition using mixed gas or argon. Especially suitable for fillet welds and V-welds (medium and top layers).

CURRENT

Number of electrons that flow through a conductor in a closed current circuit. Measured in Ampere (A).

S-MARK

Approval sign. Devices with this sign have a max. no-load voltage of 113 V direct current or 48 V alternating current. They may then be used at welding locations with increased electrical danger (e.g. for container and tank construction).

2/4 CYCLE CONTROL

Welding torch operation option. 2 cycles = welding with permanently pressed torch button, 4 cycles = starts on pressing the torch button the first time, switches off by repeated pressing of torch button (button need not be held down during welding).

SYSTEMATIC	ORGANISATION
	GARDEN
WOOD-PROCESSING	TECHNOLOGY
-/PUMP	TECHNOLOGY

CLEANING EFFECT

See rectifier.

APPARENT OUTPUT

Total consumed power of a device from the mains (or current generator). The apparent output is the sum of idle power and actual output. Measured in kVA.

THYRISTOR

Electronic component (semi-conductor). Works like a controlled diode, thereby allowing the welding voltage and welding current to be controlled.

TRANSFORMER

Converter. Converts the mains voltage to harmless welding voltage. The possible welding current is increased in the same proportion.

WATER
WELDING	TECHNOLOGY
COMPRESSED	AIR SYSTEMS

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