Igniting The Arc; Igniting The Arc Using High Frequency(Hf Ignition) - Fronius TransTig 1750 Puls Operating Instructions Manual

Igniting the arc

Igniting the arc
using high fre-
quency
Risk of injury due to shock caused by electric shock
(HF ignition)
Although Fronius devices comply with all relevant standards, high-frequency ignition can
transmit a harmless but noticeable electric shock under certain circumstances.
► Use prescribed protective clothing, especially gloves!
► Only use suitable, completely intact and undamaged TIG hosepacks!
► Do not work in damp or wet environments!
► Take special care when working on scaffolding, work platforms, in forced positions
HF ignition is activated when a time value has been set for the HFt setup parameter.
The HF ignition indicator lights up on the control panel.
Compared with touchdown ignition, HF ignition eliminates the risk of contamination of the
tungsten electrode and the workpiece.
Procedure for HF ignition:
CAUTION!
(out-of-position welding), in tight, difficult to access or exposed areas!
Place the gas nozzle down on the igni-
1
tion location so that there is a gap of
approx. 2 to 3 mm (5/64 to 1/8 in.) bet-
ween the tungsten electrode and the
workpiece
Increase the tilt angle of the torch and
2
actuate the torch trigger according to
the mode you have selected
The arc ignites without the electrode tou-
ching down on the workpiece.
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