Helvi GLOBUS 201 Manuel utilisateur

INSTRUCTIONS MANUAL

MANUALE DI ISTRUZIONE

PLEASE READ THESE INSTRUCTIONS BEFORE INSTALLING, OPERATING,

OR SERVICING THIS PRODUCT. DO NOT DISTROY THIS MANUAL.

LEGGETE LE ISTRUZIONI PRIMA DI INSTALLARE, UTILIZZARE O

RIPARARE QUESTO IMPIANTO. CONSERVATE QUESTO MANUALE.

GLOBUS 201

GLOBUS 201C

GLOBUS 211

index

ENGLISH pag

1.0 Instruction 4

2.0 Safety worning 4

3.0 Overal features 10

4.0 Installation of the equipment 12

5.0 Globus 13

6.0 Stick welding 14

7.0 Quality of the weld 15

8.0 Tig welding 15

9.0 Tig welding by scratch arc 16

10.0 Tig welding by lift arc 17

11.0 Possible welding defects 18

12.0 Trouble shooting 18

13.0 Ordinary maintenance 19

14.0 Technical data information guide 20

ITALIANO pag

1.0 Introduzione 22

2.0 Precauzioni sulla sicurezza 22

3.0 Caratteristiche generali 28

4.0 Installazione dell’apparecchiatura 30

5.0 Globus 31

6.0 Saldatura ad arco 32

7.0 Qualità della saldatura 33

8.0 Saldatura a Tig 33

9.0 Saldatura a Tig con partenza a striscio 34

10.0 Saldatura a tig con partenza in lift arc 35

11.0 Possibili difetti in saldatura 36

12.0 Possibili inconvenienti di funzionamento 36

13.0 Manutenzione ordinaria 37

14.0 Guida alla lettura dei dati tecnici 38

indice

IMPORTANT

CAREFULLY READ THE FOLLOWING INSTRUCTIONS BEFORE INSTALLING

THE UNIT AND MAKE SURE THAT THE YELLOW/GREEN GROUNDING

CONDUCTOR IS DIRECTLY CONNECTED TO THE GROUND IN THE WELDING

LOCATION.

THE UNITMUST NEVERBE OPERATEDWITHOUT PANELSAS THISCOULD BE

DANGEROUS FOR THE OPERATOR AND COULD CAUSE SERIOUS DAMAGE

TO THE EQUIPMENT.

THE UNIT WORKS ONLY WITH INPUT VOLTAGE OF 230Vac -50 Hz-1Ph.

ALWAYS TURN THE POWER SWITCH OFFAND UNPLUG THE WELDER FROM

THE POWER SOURCE BEFORE SERVICING THE UNIT.

THIS WELDER CAN BE USED ONLY WITH DIESEL GENERATING

SETS WITH POWER HIGHER THAN 11 KVA AT 230 V 50 HZ.

1.0 INTRODUCTION

1.1 Equipment identiﬁcation

Theunit’sidentiﬁcationnumber(speciﬁcationorpart number)model,and serialnumber

usually appear on a nameplate attached to the rear panel. Equipment which does

not have a control panel such as gun and cable assemblies is identiﬁed only by the

speciﬁcation or part number printed on the shipping container. Record these numbers

for future reference.

1.2 Receipt of equipment

When you receive the equipment, compare it with the invoice to make sure it is

complete and inspect the equipment for possible damage due to shipping. All

machines dispatched have been scrupulously checked. However, should your

machine not work properly, consult the section on TROUBLE SHOOTING in this

manual. If the fault persists, consult your authorized dealer.

2.0 SAFETY WARNING

2.1 General instructions

This manual contains all the necessary instructions for:

- the installation of the equipment;

- a correct operating procedure;

- an adequate maintenance of the equipment.

Therefore,besure this manual iscarefullyreadand understood by themaintenance

and technical operators.

2.2 Location

Weldingprocessesofanykindcanbedangerousnotonlytotheoperatorbuttoanyperson

situated near the equipment if safety and operating rules are not strictly observed.

Therefore the owner and the operator must

be aware of all possible risks so that they may

takethe necessarysafetyprecautionstoavoid

any kind of accident at work.

The main precautions to be observed are:

-Operators should protect their body by

wearingnon ﬂammable,close ﬁttingprotective

clothing,withoutpocketsorturned-uptrousers.

Oilorgreaseshouldbecarefullyremovedfrom

all articles, before wearing. Operators should

also wear closed safety boots with steel toe

caps and with rubber soles ( Fig. 1).

1. Leather gloves

2. Leather aprons

3. Shoes cover

4. Security shoes

5. Face masks

-Operators should wear a non- ﬂammable welding helmet or face shield

designed so as to shield the neck and the face, also on the sides. The helmet

or the face shield should be ﬁtted with protective glasses adequate to the

welding process and current used. Glass screens must always be kept clean,

and immediately replaced if they are broken or cracked (Fig.2). It is good

practice to install a pane of transparent glass on top of the adiactinic glass,

between it and the welding area. This pane can be frequently replaced when

incandescent spatters and deposits greatly reduce visibility. When working

with coated plates that emit toxic fumes when heated, use an air-supplied

respirator.

- Welding should be done in a closed area that does not open onto other working

areas, in order to protect all workers against radiation and fumes. If such an area

cannotbe provided,the weldingarea mustbe delimitedbyprotectivescreenspainted

in opaque black large enough to restrain the visibility of any person situated near

the area (Fig. 3).

- Remove all chlorinated solvents from the welding area before welding. Certain

chlorinated solvents decompose when exposed to ultraviolet radiation to form

phosgene gas.

- Never, under any circumstances, look at an electric arc without suitable eye

protection (Fig. 4).

FIG.2

FIG.3

FIG.4

- Always wear protective goggles with transparent lenses to prevent splinters or

other foreign particles from harming the eyes (Fig. 5).

- Adequate local exhaust ventilation must be used in the area. It should be provided

through a mobile hood or through a built-in system on the workbench that provides

exhaust ventilation from the sides, the front and below, but not from above the bench

so as to avoid raising dust and fumes. Local exhaust ventilation must be provided

together with adequate general ventilation and air virculation, particularly when work

is done in a conﬁned space. (Fig.6). Any symptom of stain or soreness to the eyes,

the nose or the throat may be cause by inadequate ventilation; work must be stopped

immediately and all necessary steps must be taken to rpovide adequate ventilation.

- Welding process must be performed on metal coatings thoroughly cleaned from

layers of rust or paint, to avoid production of harmful fumes. The parts degreased

with a solvent must be dried before welding.

- Do not weld metal or painted metal containing zinc, lead, cadmiun or beryllium

unless the operator, or anyone else subjected to the fumes, is wearing respiratory

equipment or an air-supplied helmet.

- Technical and sanitary protection of all welding operators-directly or indirectly

involved in welding processes is provided by the regulations in force for sanitation

and prevention of employment related injuries.

FIG.5

FIG.6

- do not use damaged welding or input cables (Fig. 8); FIG.7

FIG.8

2.3 Safety instructions

For your safety, before connecting the source to the line, closely follow these instructions:

- an adequate two-pole switch must be inserted before the two-pole main outlet; this

switch must be equipped with time-delay fuses and it must match the data speciﬁed

in the chapter “Technical Speciﬁcation”;

- the mono-phase connection with ground must be made with a two-pole plug

compatible with the above mentioned socket;

- two wires of the two-pole input cable are used for the connection with the mono-

phase line and the yellow-green wire for the compulsory connection to the ground

in the welding location;

-connectall themetal partswhich arenear theoperator inthe weldinglocation byusing

cables bigger or of the same cross section of the welding cable to a ground terminal;

- when working in a conﬁned space, the power source must be kept outside the

welding area and the ground cable should be welded to the workpiece; do not work

in a damp or wet area in these conditions (Fig. 7).

2.4 Fire prevention

The working area should conform to the Safety Regulations, and therefore, ﬁre

extinguishers should be provided in the area and walls, ceiling and ﬂoor should be

non-ﬂammable.All combustible material must be moved from the welding area (Fig.

10). If combustibles cannot be moved, they must be protected with ﬁre-resistant

cover. Ventilate potentially ﬂammable atmospheres before welding. Never operate

in an atmosphere which contains heavy concentrations of dust, ﬂammable gas or

combustibleliquidvapor.The powersourcemust belocatedin asafearea witha ﬁrm

andﬂatﬂoor; itshouldnot be putagainsta wall. Donotweldcontainers inwhichfuel,

lubricant or any other ﬂammable material have been stored.After having completed

your work, always check that the area is free of glowing or smouldering material.

FIG.10

- the operator should never touch, with any part of his body, high temperature or

electrically hot metal parts (Fig. 9);

- the operator should never wind the welding cables around his body;

- the welding gun should never be pointed at the operator or at another person. The

power source has a protection level IP 22; therefore, it prevents:

- any manual contact with hot or moving internal parts;

- the insertion of any solid body with more than 12mm diameter;

- protected against vertically falling drops of water (condensation).

The source must never be operated without its panels; this could cause serious

injury to the operator and could damage the equipment itself.

FIG.9

5- Check the immunity of any other equipment operating in the same environment.

In certain cases additional protective measures may be required.

Interference can be reduced in the following ways:

1- If there is interference in the power supply line, an E.M.C. ﬁlter should be

inserted between the mains and the unit.

2- The output cables of the unit should be shortened; these should be kept close

together and stretched along the ground.

3- All the panels of the unit should be correctly closed after carrying out

maintenance.

2.8 Medical and ﬁrst aid treatment

First aid facilities and a qualiﬁed ﬁrst aid person should be available for each shift

forimmediatetreatment of electricalshockvictims.Amedical facilityshouldbe close

by for immediate treatment of ﬂash burns of the eye and skin burns.

EMERGENCY FIRST AID:

Call physician and ambulance immediately.

Use First Aid techniques recommended by The Red Cross.

DANGER: ELECTRIC SHOCK CAN BE FATAL

If person is unconscious and electric shock is suspected , do not touch the

person if he or she is in contact with welding equipment, or other live electrical

parts. Disconnect (open) power at wall switch and then use FirstAid. Dry wood,

wooden broom, or other insulating material can be used to move

cables, if necessary, away from the person.

2.5 Shielding gas

Use the correct shielding gas for the welding process. Be sure that the regulator/

ﬂowmeter mounted on the cylinder is working well.

Remember to keep away the cylinder from any source of heat.

2.6 Permitted noise levels 86/188/EEC Rule.

Under normal circumstances the equipment used for electric arc welding does

not exceed the permitted 80 dBA. However in certain conditions eg. high welding

parameters in conﬁned spaces, noise levels may exceed the permitted level. For this

reason it is strongly recommended that operatives wear appropriate ear protection.

2.7 Electromagnetic compatibility.

Before installing the STICK/TIG welding unit, carry out an inspection of the

surrounding area, observing the following guidelines:

1- Make sure that there are no other power supply cables, control lines, telephone

leads or other equipment near the unit.

2- Make sure that there are no radio receivers or television appliances.

3- Make sure there are no computers or other control systems.

4- Make sure that there is no-one with a pacemaker or hearing aid in the area

around the unit.

3. OVERALL FEATURES

The new inverters GLOBUS 201/201C and Globus 211 have been designed

to work with unstable input voltages. The use of power components and of

electrolytic capacitors with higher voltage and a special control circuit grant a

high welding current stability in spite of the mains voltage ﬂuctuations. These

units allow coated electrode (MMA) welding by scratch starting tungsten inert

gas (TIG) welding. GLOBUS 201C allows also cellulosic electrode welding.

The technology used to manufacture the generator, combined to both MMA

and TIG functions, make it particularly easy to be used since the beginning.

The generator is composed by a control and power p.c. board, by a switching

transformer and a levelling inductance. In the p.c.board are included different

electronic functions in order to improve the arc striking and the dynamic of the

welding, so that we can achieve an optimum weld with any type of electrode

and top simplicity of performance.

An IGBT bridge guarantees a fast speed of response and greater precision,

together witha drastic reductionof allmagnetic componentswith aconsequent

great reduction of the generator weight.All the above characteristics, including

a handle that enable the unit to be carried easily, and the low electricity

consumption, make this generator ideal for all types of welding applications.

In order to obtain satisfactory results, in conformity with all safety standards,

the operator should have a good knowledge of the following:

Stick/Tig process.

Welding parameter adjustments .

Welding performance.

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