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INVERTERWELDINGMACHINESFORTIGANDMMAWELDINGDESIGNEDFOR
INDUSTRIALANDPROFESSIONALUSE.
Note:Inthefollowingtexttheterm“weldingmachine”willbeused.
1.GENERALSAFETYCONSIDERATIONSFORARCWELDING
The operator should be properly trained to use the welding machine safely
andshouldbeinformedabouttherisksrelatedtoarcweldingprocedures,the
associatedprotectionmeasuresandemergencyprocedures.
(Pleaserefertotheapplicablestandard“EN60974-9:Arcweldingequipment.
Part9:InstallationandUse).
- Avoiddirectcontactwiththeweldingcircuit:theno-loadvoltagesuppliedby
theweldingmachinecanbedangerousundercertaincircumstances.
- When the welding cables are being connected or checks and repairs are
carriedout the welding machine should be switched off and disconnected
fromthepowersupplyoutlet.
- Switch off the welding machine and disconnect it from the power supply
outletbeforereplacingconsumabletorchparts.
- Maketheelectricalconnectionsandinstallationaccordingtothesafetyrules
andlegislationinforce.
- Theweldingmachineshouldbeconnectedonlyandexclusivelytoapower
sourcewiththeneutralleadconnectedtoearth.
- Make sure that the power supply plug is correctly connected tothe earth
protectionoutlet.
- Donotusetheweldingmachineindamporwetplacesanddonotweldinthe
rain.
- Donotusecableswithworninsulationorlooseconnections.
- Donotweldoncontainersorpipingthatcontainsorhascontainedammable
liquidorgaseousproducts.
- Donotoperateonmaterialscleanedwithchlorinatedsolventsornearsuch
substances.
- Donotweldoncontainersunderpressure.
- Removeallammablematerials(e.g.wood,paper,ragsetc.)fromtheworking
area.
- Provideadequateventilationorfacilitiesfortheremovalofweldingfumesnear
thearc;asystematicapproachisneededinevaluatingtheexposurelimitsfor
the welding fumes, which will depend on their composition, concentration
andthelengthofexposureitself.
- Keep the gas bottle (if used) away from heat sources, including direct
sunlight.
- Useelectricinsulationthatissuitableforthetorch,theworkpieceandany
metalpartsthatmaybeplacedonthegroundandnearby(accessible).
Thiscannormallybedonebywearinggloves,footwear,headprotectionand
clothingthataresuitableforthepurposeandbyusinginsulatingboardsor
mats.
- Alwaysprotectyoureyeswiththerelativelters,whichmustcomplywithUNI
EN169orUNIEN379,mountedonmasksorusehelmetsthatcomplywithUNI
EN175.
Use the relative re-resistant clothing (compliant with UNI EN 11611) and
weldinggloves(compliantwithUNIEN12477)withoutexposingtheskinto
the ultraviolet and infraredrays producedby thearc; theprotection must
extend to other people who are near the arc by way of screens or non-
reectivesheets.
- Noise:Ifthedailypersonalnoiseexposure(LEPd)isequaltoorhigherthan85
dB(A)becauseofparticularlyintensiveweldingoperations,suitablepersonal
protectivemeansmustbeused(Tab.1).
- The ow of the welding current generates electromagnetic elds (EMF)
aroundtheweldingcircuit.
Electromagneticeldscaninterferewithcertainmedicalequipment(e.g.Pace-
makers,respiratoryequipment,metallicprosthesesetc.).
Adequateprotectivemeasuresmustbeadoptedforpersonswiththesetypesof
medicalapparatus.Forexample,theymustbeforbiddenaccesstotheareain
whichweldingmachinesareinoperation.
Thisweldingmachineconforms to technicalproductstandardsfor exclusive
useinanindustrialenvironmentforprofessionalpurposes.Itdoesnotassure
compliancewiththebasiclimitsrelativetohumanexposuretoelectromagnetic
eldsinthedomesticenvironment.
Theoperatormustadoptthefollowingproceduresinordertoreduceexposure
toelectromagneticelds:
- Fastenthetwoweldingcablesasclosetogetheraspossible.
- Keepheadandtrunkasfarawayaspossiblefromtheweldingcircuit.
- Neverwindweldingcablesaroundthebody.
- Avoidweldingwiththebodywithintheweldingcircuit.Keepbothcableson
thesamesideofthebody.
- Connecttheweldingcurrentreturncabletothepiecebeingwelded,asclose
aspossibletotheweldingjoint.
- Donotweldwhilecloseto,sittingonorleaningagainsttheweldingmachine
(keepatleast50cmawayfromit).
- Do not leave objects in ferromagnetic material in proximity of the welding
circuit.
- Minimumdistanced:20cm(Fig.O).
-ClassAequipment:
Thisweldingmachineconforms to technicalproductstandardsfor exclusive
use in an industrial environment and for professional purposes. It does not
assure compliance with electromagnetic compatibility in domestic dwellings
and in premises directly connected to a low-voltage power supply system
feedingbuildingsfordomesticuse.
EXTRA PRECAUTIONS
- WELDINGOPERATIONS:
- Inenvironmentswithincreasedriskofelectricshock.
- Inconnedspaces.
- Inthepresenceofammableorexplosivematerials.
MUSTBEevaluatedinadvancebyan“Expertsupervisor”andmustalwaysbe
carriedoutinthepresenceofotherpeopletrainedtointerveneinemergencies.
Allprotective technicalmeasures MUST be taken asprovided in7.10;A.8;
A.10oftheapplicablestandardEN60974-9:Arcweldingequipment.Part9:
InstallationandUse”.
-The operator MUST NOT BEALLOWED to weld in raised positionsunless
safetyplatformsareused.
-VOLTAGE BETWEEN ELECTRODE HOLDERS OR TORCHES: working with
more than one welding machine on a single piece or on pieces that are
connected electrically may generate a dangerous accumulation of no-load
voltagebetweentwodifferentelectrodeholdersortorches,thevalueofwhich
mayreachdoubletheallowedlimit.
An expert coordinator must be designated to measuring the apparatus
to determine if any risks subsist and suitable protection measures can be
adopted,asforeseenbysection7.9oftheapplicablestandard“EN60974-9:
Arcweldingequipment.Part9:InstallationandUse”.
RESIDUAL RISKS
- OVERTURNING:positiontheweldingmachineonahorizontalsurfacethatis
abletosupporttheweight:otherwise(e.g.inclinedorunevenoorsetc.)there
isdangerofoverturning.
-IMPROPER USE: it is hazardous touse the welding machine for any work
otherthanthatforwhichitwasdesigned(e.g.de-icingmainswaterpipes).
- Donotusethehandletohangtheweldingmachine.
2.INTRODUCTIONANDGENERALDESCRIPTION
2.1INTRODUCTION
This welding machine is a power source for arc welding, made specically for TIG
(DC) (AC/DC) welding with HF or LIFT strike and MMA welding with coated electrodes
ENGLISH
INDEX
1.GENERALSAFETYCONSIDERATIONSFORARCWELDING..........................5
2.INTRODUCTIONANDGENERALDESCRIPTION...............................................5
2.1 INTRODUCTION ..............................................................................................5
2.2 ACCESSORIES ON REQUEST (if not planned) ..............................................6
3.TECHNICALDATA................................................................................................6
3.1 DATA PLATE (FIG. A) .......................................................................................6
3.2 OTHER TECHNICAL DATA ..............................................................................6
4.DESCRIPTIONOFTHEWELDINGMACHINE....................................................6
4.1 BLOCK DIAGRAM ...........................................................................................6
4.2 CONTROL, ADJUSTMENT AND CONNECTING DEVICES............................6
4.2.1 Rear panel (FIG. C) .................................................................................6
4.2.2 Front panel FIG. D...................................................................................6
5.INSTALLATION......................................................................................................7
5.1 PREPARATION (FIG. P) ..................................................................................7
5.1.1 Assembling the return cable-clamp (FIG. E) ...........................................7
5.1.2 Assembling the welding cable-electrode holder clamp (FIG. E) ..............7
5.2 POSITION OF THE WELDING MACHINE .......................................................7
5.3 CONNECTION TO THE MAIN POWER SUPPLY ............................................7
5.3.1 Plug and outlet ........................................................................................7
5.4 CONNECTION OF THE WELDING CABLES ..................................................7
5.4.1 TIG welding .............................................................................................7
5.4.2 MMA WELDING ......................................................................................7
6.WELDING:DESCRIPTIONOFTHEPROCEDURE..............................................7
6.1 TIG WELDING ..................................................................................................7
6.1.1 HF and LIFT strike ...................................................................................8
6.1.2 TIG DC welding .......................................................................................8
6.1.3 TIG AC welding (if installed) ....................................................................8
6.1.4 Procedure ................................................................................................8
6.2 MMA WELDING ...............................................................................................8
6.2.1 Procedure ................................................................................................8
7.MAINTENANCE.....................................................................................................8
7.1 ROUTINE MAINTENANCE ..............................................................................8
7.1.1 Torch ........................................................................................................8
7.2 EXTRAORDINARY MAINTENANCE ...............................................................8
8.TROUBLESHOOTING...........................................................................................8
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