EN
4T mode
MIG welding with 4T mode of the gun trigger.
• Trigger pushed down – ow of shielding gas starts.
• Trigger released – welding starts.
• Trigger pushed down – welding ends and shielding gas ow continues.
• Trigger released – ow of shielding gas ends.
Notice: PostGas Time at least preset minimum.
1. 2.
1. Pre-gas time
2. Post-gas time
4T mode and crater ll function
• Trigger pushed down – ow of shielding gas starts.
• Trigger released – welding starts.
• Trigger pushed down – welding values change to crater ll level.
• Trigger released – welding ends. Post-gas time ows for preset time.
1. 2. 3.
1. Pre-gas time
2. Crater ll time
3. Post-gas time
HiArc M 400R, M 500R
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