GYS KRONOS 250M Manuel D'utilisation page 24

User manual
SEMI-AUTOMATIC WELDING WITH CORED WIRE
The unit can weld flux-cored wire from Ø 0.9 to 1.2mm. The original rollers must be replaced by specific cored wire rollers (available as an optional
extra). Welding flux-cored wire with a standard nozzle can lead to overheating and damage to the torch. Remove the original nozzle from your MIG-
MAG torch.
CHOOSING A POLARITY
Polarity +
Gas-shielded MIG/MAG welding generally
requires positive polarity.
In any case, refer to the wire manufacturer's recommendations for the choice of polarity for your MIG-MAG torch.
GAS SUPPLY
- Fit a suitable pressure regulator to the gas cylinder. Connect it to the welding station with the pipe supplied. Attach the two hose clamps to prevent
leaks.
- Ensure that the gas cylinder is held securely in place with a chain attached to the power source.
- Set the gas flow rate by adjusting the dial on the pressure regulator.
NB: To adjust the gas flow rate more easily, use the rollers on the motorised spool by pulling the trigger on the torch (loosen the brake wheel on the
motorised reel so that no wire is drawn in). Maximum gas pressure: 0.5 MPa (5 bar).
This procedure does not apply to welding in «No Gas» mode.
RECOMMENDED COMBINATIONS
(mm)
0.8-2
2-4
4-8
0.6-1.5
1.5-3
3-8
MIG / MAG (GMAW/FCAW) WELDING MODE
Settings
Torque - FeAr 15% CO2
material/gas - ...
Wire diameter Ø 0.6 > Ø 1.2mm
Using the trigger 2T, 4T
Spot mode Spot, Spot-Delay
Thickness
First Setting Start-up
Speed
Access to some of the welding parameters depends on the selected display mode: Settings/Display mode: Easy or Expert. Refer to the HMI ma-
nual.
24
Translation of the original
instructions
Current (A)
20-100
100-200
200-300
15-80
80-150
150-300
Welding processes
Settings
-
-
-
Polarity -
Ø Wire (mm) Ø Nozzle (mm)
0.8
1.0
1.0/1.2
0.6
0.8
1.0/1.2
Choice of the material to be welded.
Synergic welding parameters
Choice of wire diameter
Choice of trigger welding management mode
Selecting the spot mode
Choosing the main setting to be displayed (thickness of the workpiece,
average welding current or wire speed).
KRONOS 250M
MIG/MAG welding without gas shielding
(No Gas) generally requires negative
polarity.
Flow (L/min)
12 10-12
12-15 12-15
15-16 15-18
12 8-10
12-15 10-12
15-16 12-15