Gas Connection - GYS NEOPULSE 220 C Manual Del Usuario

Remarks :
• A torch liner that is too narrow may cause wire feeding problems as well as motor overheating.
• The torch connector must also be tight to prevent overheating.
• Check that neither the MIG/MAG wire nor the wire reel are in contact with the machine's mechanical parts, otherwise there si a
danger of short-circuit.
SEMI-AUTOMATIC WELDING IN STEEL/STAINLESS STEEL (MAG MODE)
NEOPULSE can weld steel and stainless steel wire from Ø 0.6 to 1.0 mm (II-A).
The device is supplied as standard to operate with Ø 1.0 mm steel wire (Ø 0.8/1.0 roller). The contact tube, the roller groove, the torch sheath are
designed for this application. When welding wire with a diameter of 0.6, use a torch with a length of no more than 3 m. The contact tube (III-E)
and the drive roll (III-B) in the motor should be replaced by equivalent parts with a 0.6 groove (ref. 042353). In this case, position it in such a way
that the inscription 0.6 (III-B) is facing you.
Welding steel requires a specific gas (Ar+CO2). The proportion of CO2 may vary depending on the gas used. For stainless steel, use a mixture with
2% CO2. When welding with pure CO2, it is necessary to connect a gas preheating device to the gas cylinder. For specific gas requirements, please
enquire with your gas distributor. The gas flow rate for steel is between 8 and 15 litres / minute depending on the environment.
SEMI-AUTOMATIC ALUMINIUM WELDING (MIG MODE)
NEOPULSE can weld aluminium wire from Ø 0.8 to 1.2 mm (II-B).
Aluminium use requires a specific pure argon gas (Ar). For specific gas requirements, please enquire with your gas distributor. The aluminium gas
flow rate is between 15 and 25 l/min depending on the environment and the welder's experience.
The differences between using the unit on steel or aluminum are:
- Use specific drive rolls for aluminium welding.
- Apply minimum pressure on the pressure rollers of the motor-driven reel to avoid crushing the wire.
- Use the capillary tube (designed to guide the wire between the drive rolls in the motor and the EURO connector) only for steel/stainless steel
welding (II-B).
- Use a torch designed for aluminium. This aluminium torch is fitted with a teflon torch liner in order to reduce frictions. DO NOT cut the liner at the
edge of the fitting! This liner guides the wire from the drive rolls.
- Contact tube: use a SPECIAL aluminium contact tube corresponding to the diameter of the wire.
When using red or blue liner (aluminium welding), it is recommended to use the part no.91151 (II-C). This
stainless steel liner guide improves the centering of the sheath and facilitates the wire feed.
SEMI AUTOMATIC WELDING WITH CUSI & CUAL (BRAZING MODE)
NEOPULSE can weld CuSi and CuAl wire from Ø 0.8 to 1.0 mm.
Just like with steel, the capillary tube must be in place and it must be used with a steel liner. In brazing mode, use pure argon gas (Ar).
MIG/MAG CONNECTION (SEE PAGE 99)
- MIG/MAG welding under gas protection generally requires positive polarity (
- NEOPULSE can weld wire without gas protection (No Gas) from Ø 0.9 to 1.2 mm. This type of wire generally requires a negative polarity (
Welding filled wire with a standard nozzle can cause overheating and damage to the torch. Preferably use a special «No Gas» nozzle or remove the
original nozzle.
In all cases, refer to the wire manufacturer's recommendations for the choice of polarity.

GAS CONNECTION

- Fit a gas regulator on the gas cylinder. Connect it to the welding machine using the hose supplied. Put on the 2 clamps to avoid leaks.
- Ensure that the gas bottle is properly secured using the chain on the welding machine.
- Adjust the gas flow rate by adjusting the knob on the regulator.
NB: To facilitate the adjustment of the gas flow rate, start the motor by pressing the torch trigger (loosen the brake on the motor to avoid feeding
the wire through). Maximum gas pressure: 0.5 MPa (5 bar). This procedure does not apply to welding in «No Gas» mode.
GENERAL ORGANISATION OF THE INTERFACE
Parameter setting
• Information: all product information is available here (Model, S/N......)
• Process: choose the welding process: MIG-MAG, TIG or MMA.
• Settings: the advanced product settings are available here (display mode, device name,
language...)
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• Calibration: allows you to start the calibration of the speed on the wire feeders.
• Portability: allows you to load or download JOBS from a USB key
as well as the machine configuration.
• Traceability: allows you to start saving all welding beads and exporting them to a USB
key.
NEOPULSE 220 C / 220 C XL
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