Stel HI-MIG 300K-P Manual Del Usuario página 44

ENGLISH
HI-MIG 300K-P 400V 3F
TECHNICAL DESCRIPTION
COD. 6902100050
When the generator is switched on, all the signals will be displayed for about 2
seconds; then the displays (ref.5-7 page 9) will show the type of welding selected for 2
seconds.
Regulating the TIG 2t welding parameters
1) Press the SELECT MODE button (ref.29 page 9) until the Tig 2T mode led (ref.33
page 9) lights up.
2) The letters tig will appear on the displays (ref.5-7 page 9) for 2 seconds.
3) Regulating the welding current -The A/wire speed encoder (ref.6 page 9) is used to
regulate the welding current shown on the display on the left (ref.5 page 9)
4) Regulating the slope down – Pressing the SET button (ref.10 page 9) selects the
time of the slope down. The right-hand display (ref.7 page 9) will start to blink,
indicating the letters Sd; with the V/SET encoder (ref.8 page 9) you can regulate the
value from 0.1 to 12.5 seconds.
To view the set value at any time, briefly press the SET button.
5) Regulating the post-gas time. Pressing the PG button (ref.11 page 9) selects the
post-gas time. The right-hand display (ref.7 page 9) will start to blink, indicating the
letters PG; with the V/SET encoder (ref.8 page 9) you can regulate the value from 0.1
to 12.5 seconds.
To view the set value at any time, briefly press the PG button.
Procedure for TIG 2 TIME welding with LIFT start
Starting welding:
1) Regulate the desired welding parameters.
2) Bring the tip of the electrode (tungsten) into contact with the piece to be welded.
3) Press the torch button: after 0.5 seconds of PRE-GAS, lift the torch from the side so
as to move slightly away from the piece to be welded and start the welding process.
End of welding:
1) Release the torch button: the current gradually falls with the time set by means of
the SET button (ref.10 page 9); the arc goes out and then there will be the POST-GAS
time set by means of the PG button (ref.11 page 9).
- MIG 2 TIME WELDING
Preparing the machine
MIG welding may be carried out in various ways, depending on the specific
requirements of the operator. In this case you must proceed as follows to prepare the
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