MiTEC super200 - General Safety Precautions; Troubleshooting Welding Issues

 SUPERSeries·User’sManual
-1-
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INTRODUCTION
ThemachineissuppliedwithAC220Vinput.It’susingadvancedinverter
technologytotransfer50/60HZpowerfrequencyelectrictoabove100KHZhigh
frequencyelectricthroughtheinvertercombinedwithpowerfulcomponentssuchas
MOSFETandsoon.Thenaftervoltagereducing-rectifying-wavefilteringitalsoadopts
pulse-widthmodulation(PWM)andclosed-loopbackcircuitcontroltechnologyto
outputstableDCcurrent.Thusthisunithasthefollowingcharacteristics:highefficiency,
lowenergyconsumption,compact,gooddynamiccharacteristics,stablearc,
continuousadjustablecurrentandsoon.Alsoit’swithprotectionfunctionfor
overvoltage,overcurrentandoverheattoensurethesafetyanddurabilityofthewelder.
Thewelderisofconstantcurrentcharacteristics,andweldingcurrentis
stableanddoesn'tchangewiththearc.Andincuttingprocess,thetemperature
canreach10000-15000
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afterthearciscompressedbyhigh-speedflowingair,then
themachineentersintohighionizationstateandgetspowerfulplasmaarc.
Theunitiswithfootpedalconncetorwhichisforremotecurrentcontrol
andmoreconvenientforoperation.Andit'swidelyusedinaluminum,carbon
steel,stainlesssteel,cooperandtitaniumwelding,etc.
Welcometopurchasingourproductandgivingusmorevaluableadvice.Andwe
willbecommittedtoperfectproductsandservicestocreatethetopbrandamongthe
weldingindustry.
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1.
Creepage-protectingswitchshouldbeusedwhenyouoperatethemachine! 
2.
Withinindoorenvironmentthemachinemayproduceradiowave,sotheuser
shouldmakefullofpreventivemeasures.
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3.
Pleasemakesurethepowersupplyiscutoffbeforeanyconnectingoperation. 
4.
Ifdistancebetweenwork-pieceandmachineistoofar(

50m),andwelding
cablesaretoolong,pleaseselectthecablewithbiggersectiontoreducethe
voltagedropping.
 SUPERSeries·User’sManual
-14-
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SOLUTIONTOFAULT 
Belowphenomenonisrelatedtofittings,weldingmaterials,environmentfactor,
supplypowers,pleasetrytoimprovetheweldingenvironment.
1.Currentisunstableduringweldingprocessanditmaybecaused
bythefollowings
1.1Electricnetworkvoltagechanges.
1.2Harmfulinterferencesfromelectricnetworkorotherequipments.
1.3Undersizeofexternalinputcable.
2.Outputcurrentnotuptoratedvalue
Currentwillnotmatchthesettingvaluewhenpowervoltagedepartsfromtherated
value.Whilevoltageislowerthantheratedvalue,themaxoutputmaybelowerthan
theratedvalue.
3.Arc-strikingdifficultandeasilypausesunderMMAorTIG
3.1Makesuretherodortungstenisofgoodqualityotherwiseitisdifficulttomeetthe
requestofthehighqualitywelding.
3.2Itwillbehardtostrikearciftherodisnotdryenoughorthetungstenisnot
sharpened.Itwillalsocauseunstablearcandtheweldingqualitywillbe
influencedbyincreaseddefect.
4.ToomuchspatterunderMMAwelding
4.1Highcurrentwithrodofsmalldiameter.
4.2Theoutputterminalpolarityisreversed.Fornormaluseyoucanadoptpositive
connectionwhichmeanstheholderconnectsto“-”polarityandwork-piecetothe
“+”polarity,sopleaseexchange.
5.Unsmoothcuttingappearanceandunsatisfactorycuttingeffect
5.1 Make sure the compressed air source is stable and with enough pressure.
Normallytheairpressureshouldbenotlessthan0.3Mpa(around3Kgf/cm²),and
therangeoffluctuationshouldbeunder±0.05Mpa.
5.2Theelectrodeandtipdiameterdonotmatchthecuttingcurrentverywell.
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Tipstandard 
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Currentrange 10
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30A 30
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40A 60
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100A
Tipdiameter 1.0mm 1.2mm 1.3mm
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