![Cloos QINEO Micro 300 Operating Instructions/Spare Parts List Download Page 22](http://html.mh-extra.com/html/cloos/qineo-micro-300/qineo-micro-300_operating-instructions-spare-parts-list_2625795022.webp)
Cod.006.0001.1362
25/03/2013 v2.0
ENGLISH
Micro 300
22/32
13
TORCH TRIGGER MODES
13.1
2T LIFT-ARC WELDING
1.
Touch the workpiece with the torch electrode.
2.
Press (1T) and keep the torch trigger pressed.
3.
Slowly lift the torch to strike the arc.
The WELDING CURRENT reaches the preset value, by way of a UP SLOPE TIME, if programmed.
4.
Release (2T) the trigger to start the weld completion procedure.
The current reaches the END CURRENT value in the time set in the DOWN SLOPE TIME parameter.
The arc is extinguished.
Gas delivery continues for the time set in the POST GAS parameter.
13.2
4T LIFT-ARC WELDING
1.
Touch the workpiece with the torch electrode.
2.
Press (1T) and release (2T) the torch trigger.
3.
Slowly release the torch trigger to strike the arc.
The WELDING CURRENT reaches the preset value, by way of a UP SLOPE TIME, if programmed.
4.
Press (3T) the trigger and keep it pressed to start the weld completion procedure.
The current reaches the END CURRENT value in the time set in the DOWN SLOPE TIME parameter.
The arc continues and the current output will be the value set in the END CURRENT parameter.
In these conditions the weld pool can be closed (CRATER FILLER CURRENT).
5.
Release (4T) the trigger to extinguish the arc.
Gas delivery continues for the time set in the POST GAS parameter.
13.3
2T MIG/MAG WELDING
1.
Bring the torch up to the workpiece.
2.
Press (1T) and keep the torch trigger pressed.
The wire advances at the approach speed until making contact with the work.
The arc strikes and the wire feeder accelerates to the set feed rate value.
3.
Release (2T) the trigger to start the weld completion procedure.
Gas flow continues for the time set in the POST GAS parameter (adjustable time).
13.4
4T MIG/MAG WELDING
1.
Bring the torch up to the workpiece.
2.
Press (1T) and release (2T) the torch trigger.
The wire advances at the approach speed until making contact with the work.
The arc strikes and the wire feeder accelerates to the set feed rate value.
3.
Press (3T) the trigger to start the weld completion procedure.
Gas flow continues until the torch trigger is released.
4.
Release (4T) the torch trigger to start the POST gas procedure (adjustable time).
13.5
3 LEVEL MIG/MAG WELDING
1.
Bring the torch up to the workpiece.
2.
Press (Level 1) the torch trigger.
The wire advances at the approach speed until making contact with the work.
The welding arc strikes and the wire feed rate changes to the first welding level, which is set as a percentage of the normal welding feed
rate.
This first level is used to create the weld pool: for example, when welding aluminium a value of 130% is recommended.
3.
Release (Level 2) the torch trigger to switch to the normal welding feed rate set by means of the 3 LEVELS SLOPE.
4.
Press the torch trigger again (Level 3) to switch to the third welding level set as a percentage of the normal welding feed rate by means of the 3
LEVELS SLOPE.
This third level is used to complete the weld and fill the final crater (CRATER FILLER) in the weld pool: for example, when welding
aluminium a value of 80% is recommended.
5.
Release the torch trigger a second time to close the weld and execute the Post Gas procedure.