Thermal Arc 180 AC, User Manual

Page: 22 / 36

Notice NOT 034
THERMAL ARC 180 AC/DC
Rev : 00
Date : 03/12/02
USING
USER’S MANUAL
Page
22/36
When welding, the component’s temperature rise starts the ventilation and fixes the fan’s speed which
will change according to temperature.
This method is a good solution between cooling and protection from dust’s circulation in the machine.
NOTE : When ambient temperature is high, the fan can operate for a short period even if you are not
welding.
In MMA (stick) mode, ventilation is permanent
13. WELDING WITH PULSE DC CURRENT
The THERMAL ARC 180 AC/DC units have got an integrated pulse current function.
To set the pulse current, press the setting key F15 . The indicator F27 illuminates (indicator F26 OFF).
To remove the pulse current, press the setting key F15 until indicator F27 fade out.
X
Adjustment of the pulse high current
Adjust the high current with the potentiometer F9 .
The value can be read on display F5 .
Y
Adjustment of the pulse low current
When F26 OFF and F27 ON, press the setting key F15 for 3 s. Maintain the key pressed and adjust
the low current‘s value with the potentiometer F9 .
The value can be read on the display F5 .
When the potentiometer is at the minimum, the current is 3A, and at the maximum, it is high pulse
current value.
The low current is pre-adjusted at 30A.