18
Fig. 18 Transtig 1600 / 1700 TIG welding machine consisting of: power source with control unit, manual
torch, earth cable (gas cylinder with pressure regulator without figure)
- Fit the torch with a tungsten electrode and a gas nozzle (see the instruction manual
for the torch concerned).
- Plug the earth cable into the current socket [B] and latch in place firmly.
- Connect the gas hose to the machine and the gas pressure regulator.
- Plug in the mains plug.
- Switch on the mains master switch (1)
- Shift selector button (4) into the or positions.
LED (7) or (8) lights up.
- If necessary, connect a remote control unit
- Select welding parameters (command value for main current I
H
is displayed on
ammeter 2).
- Open the gas cylinder valve by turning it anticlockwise.
Igniting the arc
- Make sure the welding current is switched off. Place the electrode on the weld at the
point where the arc is to be ignited, tilt the torch backwards until the edge of the gas
nozzle is resting on the workpiece, leaving a gap of between 2 and 3 mm between
the tip of the electrode and the workpiece. Fig. 19a
- Close your visor.
- Switch on the welding current with the torch trigger
- Arc ignites without touching the workpiece. Fig. 19b
- Move the torch into the normal position. Fig. 19c
Advantage: no contamination of either the electrode or the workpiece.
Important! After ignition, the high frequency switches off automatically.
TIG welding with high-frequency ignition (HF)
Start up
Safety
WARNING! At TIG welding, the manual electrode cable will always be live
when:
- the mains master switch (1) is ON
- the operating mode is in the or position and when the “start
welding” signal has been given from the torch trigger.
WARNING! Make sure, when the manual electrode cable is not in use, that it
is either disconnected from the machine or else fastened to the machine in
such a way (insulated) that the electrode holder and the coated electrode
cannot touch any electrically conductive or earthed parts.
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