10
- Select the amperage with the welding-current dial (11)
- Start welding
Advantages:
- Improved ignition, even when using
electrodes with poor ignition proper-
ties
- Better fusion of the base metal in the
start-up phase, meaning fewer cold-
shut defects
- Largely prevents slag inclusions
Fig.7a Example of "Hot-Start" function
I (A)
t
90A
0,5 s 1 s 1,5 s
120A
Mode of functioning:
For a 0.5 sec duration, the welding current is increased to a certain value. This value is
one third higher than the pre-set welding current (Fig.7a)
Example: A welding current of 90 A has been set on the setting dial. The Hot-Start
current will be 90 A + (90 A / 3) = 120 A
Important! In cases where the pre-set welding current is 120 A or above, the Hot-Start
current is limited to 160 A.
When the length of the arc is shortened, the welding voltage may drop so far that the
rod electrode starts to stick.
Burn-out is prevented by the Anti-Stick function. If the rod electrode begins to stick, the
power source switches the welding current off after 1.5 seconds. After the rod electrode
has been lifted from the workpiece, the welding operation can be resumed without
difficulty.
Funktion Hot-
Start
Anti-Stick
function
Set the welding
amperage, ignite
the arc
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