2T/4T Torch Button Function; Adjusted Welding Parameters Save & Recall; Routine Maintenance - Helvi COMPACT 220AC/DC Manual De Instrucciones

2T/4T TORCH BUTTON FUNCTION

• The advantages of the 4T function are:
• Welding is performed without the need to
keep the button pressed (automatic mode);
• The final welding current (lcf) can be adju-
sted for value (manual, pos. 2) and time by
means of the torch button.
2T
MODE
Torch button pressed (ON)
Torch button released (OFF)
Welding current
For information on personal protection
and on safety in the workplace, carefully
read the chapter on SAFETY.
ADJUSTED WELDING PARAMETERS
SAVE & RECALL
Use the Prog Save & Recall button in Pos.18
to save and recall the parameters set by the
operator.
To save the setup proceed as follows:
• Hold the button until the display views the
letter P followed by a number corresponding
to the operator point where the adjusted wel-
ding parameters can be saved in.
• Turn the knob in Pos. 2 to choose the pro-
gram number to save in.
• To save the program keep the button
Pos.18 pressed. The operator point referen-
ce number will disappear from the display.
To recall a saved program proceed as fol-
lows:
• Hold the button until the display shows the
operator points list (the letter P followed by
a number) where the adjusted welding para-
meters are saved in.
• Turn the knob in Pos. 2 to choose the num-
ber of the desired program.
• Press the button in Pos.18 to load all the
welding parameters. The operator point refe-
rence number will disappear from the display.
4T
MODE
Torch button pressed (ON)
Torch button released (OFF)
Welding current
Final current
Fig.16
The system automaticaly exits the function
Save and Recall five seconds after the last
operation without saving or recalling any ope-
rator point.

ROUTINE MAINTENANCE

WARNING! PRIOR TO ANY INTERVEN-
TION MAKE SURE THE MACHINE IS
DISCONNECTED FROM THE POWER
SOURCE.
The efficiency of the welding equipment over
time is directly related to the frequency of
the maintenance operations. In the particular
case of welding machines, simply cleaning
their internal parts is sufficient; this must be
carried out more often if the workplace is par-
ticularly dusty.
Togliete la copertura.
• Remove the cover.
• Clear all traces of dust from the internal
parts of the generator using compressed air
with pressure below 3 kg/cm.
• Check all electric connections, making sure
that all screws and nuts are well tightened.
• Replace any deteriorated parts.
• Put the cover back on.
• After all these steps, the generator is ready
to work again, according to the instructions
contained in this manual.
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