Kemppi mastertig mls 2300 acdc Operation Instruction Manual page 15

HF/contact ignition in TIG welding (water fill)
TIG arc can be started either with high frequency (HF) or without (contact ignition). HF ignition
is chosen by pressing the HF CONTACT button to turn on the HF light.
If you use water-cooled torch you can fill it with water by pressing the HF CONTACT button for
more than 2 seconds. The display reads 'COOLER'.
Welding torch switch 2 sequence function
Gas flow starts when the torch switch is pressed. Welding starts, and the current will rise to the Hot
Start current within the up-slope time, remain at that level for the set time (H2t) and then change
to the welding current. The Hot Start function can be disabled and green panel light switches off
when the Hot Start current is adjusted to 100 %. The current will then rise directly to the welding
current level within the up-slope time. Release the torch switch, and the current starts to drop,
and after the selected down-slope time the arc is broken. After this, the shield gas will flow for
the time selected.
Welding torch switch 4 sequence function
Gas flow starts when the torch switch is pressed. Release the torch switch. The ignition spark
ignites the arc, and the current will rise to the Hot Start current within the up-slope time. You can
switch from Hot Start current to welding current with a short press of the torch switch. You can
disable the Hot Start function by adjusting the Hot Start current to zero per cent. The current will
then rise directly to the welding current level within the up-slope time.
Press the torch switch down, and the welding continues. Release the torch switch, and the current
starts to drop and after the selected down-slope time the arc is broken. After this, the shield gas
will flow for the time selected.
Remote control
If you choose to adjust the welding current with a remote control unit you need to connect the unit
and select the remote control selection button. The PANEL light switches off, and you can select
the unit (R10, foot pedal control R11F, or torch control). The foot pedal control works only in 2T
mode. Hold the remote control selection button (LO/HI) down to adjust the limits of the remote
control's adjustment range.
Adjustment of parameters
To select TIG welding parameters you only need to use two buttons: arrow-left and arrow-right.
Red panel light shows parameter you have chosen. Adjustment is done with the potentiometer.
When pressing the RETURN button, adjustment of parameters goes straight to welding current.
The display shows automatically numeric values and the units of the parameters. When you adjust
the parameters, you can see the value on the numerical display. After 10 seconds, the display will
return to the welding current.
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