ESAB Aristotig 255 LTN 255, Instruction Manual

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Line 6
Measurement instrument
Shows the welding current or arc voltage during the present welding
run.
The measurement instrument has a hold function that locks the
measurement value when the welding run is stopped.
Line 7
Welding data memory
O O 1 O 2 O1--2 O A
Four different sets of welding data settings can be stored in the ma-
chine’s memory, two for TIG mode and two for MMA mode.
The following can be stored:
TIG: selected option from line 3 (continuous or pulsed current) All set-
tings on line 5.
MMA: Welding current
The welding data memory is changed using the green arrow
keys.
Changes can also be made by quickly pressing the torch trigger, re-
gardless of whether you are welding or not.
To activate the possibility of jumping between programs both the
green arrow keys should be pressed simultaneously.
When the jump function is activated an indicating lamp comes on.
O 1--2
If the 4 step trigger action is selected, quickly pressing the
trigger will switch the welding data. The same thing applies in 2 step
trigger action if you are not welding. During welding, using 2 step
trigger action, you release the trigger momentarily to change the
welding data.
Aristotig has battery backup so that the settings remain in memory
even when the machine is switched of or disconnected from the
power supply.
6.2 Other functions
Drop welding (MMA)
Drop welding can be used when welding with stainless steel electrodes.
The technique involves the arc switching between igniting and extinguishing to allow
better control over the heat transfer. The electrode only needs to be lifted a little for
the arc to be extinguished.
The machine should be in the current setting mode when the function is activated.
Press both of the green arrow
keys simultaneously for 2 seconds and the
symbol ”--_--” indicates that the function is activated.
This mode remains active even if the machine is switched off. The machine is reset
for normal welding again using the same method and ”------” is then indicated on the
display.
Arc Force (MMA)
The Arc Force setting changes the machine’s dynamic. A softer or harder arc can be
obtained. The machine should be in the current setting mode when activating the
function by pressing the two red arrow keys
simultaneously for 2 seconds. The
display shows a value between 0 and 100. The higher the value the harder the arc.
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