Introduction; Gas Cylinder - Helvi 77611978 Mode D'emploi

3.0
This manual was edited to give some indications on the operation of the welder and was thought to
offer information for its practical and secure use. Its purpose is not teach welding techniques. All
given suggestions are indicative and Iintended to be only guide lines.
To ensure that your welder is in good conditions, inspect it carefully when you remove it from its packing
having care to ascertain that the cabinet or the stocked accessories are not damaged.
Your welder is capable of daily activity of construction and reparation. Its simplicity and versatility and its
excelling welding characteristic are granted by the inverter technology. This welding inverter allows to be
finely set to obtain optimal arc characteristics with a reduced consumption of energy with respect to the
welders based on a traditional transformer.
Respect the duty cycle of the welder making reference to the techncial data label on the welder's back.
Duty cycle is given as percentage on a 10 minute time. During this perido of time the unit can be used at
a defined power regulation. Duty cycle exceeding may cause overheating or welder's damage.
Welder's basic specifications:
Power Voltage:
220/240V, 50/60Hz
Uo:
10÷35V MIG/MAG - 65V MMA/TIG
Current Output Range:
20÷200 MIG/MAG - 5÷200 MMA/TIG
Duty Cycle:
35% 200A MIG/MAG/MMA/TIG
100% 140A MIG/MAG - 100% 120A MMA/TIG
Welding Wire Selection:
This welder can work with Aluminium wire 0,8÷1,2 thick, solid steel wire 0,6÷1,0 thick and stainless steel
wire 0,8÷1,0 thick (Gas Welding) and with flux core wire 0,8÷1,0 thick (No Gas Welding).
Feed Rolls:
groove 0,6-0,8mm for wires 0,6÷0,8mm
groove 1,0-1,2mm for wires 1,0mm
Teflon feed rolls for Aluminium, groove 0,8÷1,0mm for wires 0,8÷1,0mm, groove 1,2 for wires 1,2.
Gas Selection
According to the material to be welded and to the wire you are going to use select the protection gas. The
here below table can give you some useful indications:
MATERIAL TO WELD
Mild steel
Stainless steel
Aluminium

INTRODUCTION

GAS CYLINDER

Argon + CO2
cylinder or CO2
cylinder
Argon cylinder
Argon cylinder
26
WIRE
Copper coated mild steel wire spool.
For no gas welding use
flux-cored wire spool
Stainless steel wire spool.
Aluminium wire spool