ots80pb & ots60pb oil test set - cole-parmer should be placed in the test chamber. n the...
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OTS80PB & OTS60PBOil Test Set
USER GUIDE
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G SAFETY WARNINGS
n SafetywarningsandprecautionsmustbereadandunderstoodbeforetheOTS80PB/OTS60PBisused.Theymust beobservedduringuse.
n TheOTS80PB/OTS60PBmustonlybeusedinthewayintendedandforthestatedpurposesdescribedbyMegger.
n TheOTS80PB/OTS60PBmust not beusedifanypartofitisdamaged.
n TheOTS80PB/OTS60PBmustbeproperlyearthed.Asupplementaryearthterminalisprovided.
n PositiontheOTS80PB/OTS60PBsothatpowercanbeeasilyremoved.
n TheOTS80PB/OTS60PBmust notbeusedinwetlocationsorwithrainfallingontheinstrument.
n TheOTS80PB/OTS60PBmustonlybeusedfortestingelectricalgradesofinsulatingliquids.Nootherobjectsor substancesshouldbeplacedinthetestchamber.
n TheOTS80PB/OTS60PBmustonlybeusedwithoneofMegger’sprecisiontestvesselsorVCM100Dcorrectlyfitted onthesupporthornsinthetestchamber.
n Replacementfusesmustbeofthecorrecttypeandrating.
n Ifbatteriesarefitted,the12VDCchargermustonlybepoweredfromanegativeearthedvehicle12VDCsource usingtheMeggersuppliedlead.
n CalibrationorrepairmustonlybecarriedoutbyaMeggerqualifiedrepairfacility.
n Thetestchambermustbekeptcleanandfreefromlintorotherfibres.
n TheOTS80PB/OTS60PBweighsbetween16kgand23kg.Careshouldbetakenwhenliftingtheinstrument.
n Itisprohibitedtoinsertforeignobjectsintoanygapontheinstrumentbeforeorduringatest.
n Unitmustbeusedinawellventilatedlocation.SmallquantitiesofOzonemaybecreatedafterprolongedtesting.
NOTETHE OTS80PB/60PB MUST ONLY BE USED BY SUITABLY TRAINED AND COMPETENT PERSONS.
IF THESE INSTRUMENTS ARE NOT USED IN THE MANNER SPECIFIED PROTECTION MAY BE IMPAIRED
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Symbols used on this instrument
G Caution:refertoaccompanyingnotes
F Dangerhighvoltage,riskofelectricalshock
DCvoltage
a ACvoltage
c EquipmentcomplieswithcurrentEUDirectives
u Earthterminal
f Fuse
USBterminal
Equipmentcomplieswith‘Ctick’requirements
Donotdisposeofinthewastestream
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ContentsSafetywarnings 2Symbolsusedonthisinstrument 3Generaldescription 5Featuresandbenefits 6Controlpanelandinternalprinterpanel 7 Rearpanel 8Applications 9Preparationsforuse 10 Gettingstarted 10 Supplyvoltage 10 Assembly 10 Instrumentsetupprocedure 10 Calibration 10 Testvesselmortisedstirrer 10 Transportationandstorage 10Instrumentoperation 11 Instrumentmenustructure 11 Maintabicons 12 Navigationandcharacterentry 12Generalinstructions 13 Makingabreakdowntest 13 Testinprogress 13 Testresults 13Managingteststandards 14Memoryfunctionality 15Printqualityandchangingpaper 16 Vesselandelectrodes 16 VCM100D 16 Testvesselmotorisedstirrer 16Preventivemaintenance 17 General 17 Cleaning 17Technicalspecifications 18 OTS80PB/60PBtechnicalspecification 18 VCM100Dvoltagemetertechnicalspecification 19Storageandtransportation 19Accessoriesandequipment 20 Optional 20 Spares 20
Repairandwarranty 21
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General description
Megger’sOTS80PB/60PBOilTestSetsareportableliquiddielectricbreakdowntesters.Theyarefullyauto-matic,poweredbybattery/mainsandfacilitateaccuratebreakdownvoltagetestsonmineral,esterandsiliconinsulatingoils.Usedonsiteaswellasinthelaboratory,theprecisiontestvesselsetstheaccuracystandardfortheliquidinsulationtestindustry.Foreaseofusetheinstrumentscomespre-programmedwitha‘library’ofinternationalbreakdownteststandardsandtheabilitytocreatecustomtests.
TheOTS60PBweighslessthan17kgandtheOTS80PB21.5kgto23.5kgdependingonbatterychoice.Itcomescompletewithoptionalcarrybagandoptionalimpactresistanttransportcase.Thetransportcaseprovidesspacefortheunit,vesselandelectrodeset.
Theinstrumentishousedinametalcasewithmouldedendcapsthataccommodateconvenientcarryhandles.Thetestchamberisdesignedwithaneasy-cleansurfaceandprovidesadrainforspiltoilthroughaninternalpiperoutedtotherearoftheinstrument.Abeakerorsimilarcanbeusedforspillagecollection.Thetestareaiscoveredbyaplasticlidwithanelectricallyprotectiveinnerconductivelayerwhich,withthemetalcase,providesasafeequipotentialenclosureforhighvoltagetesting.
Thelidallowsinplentyofambientlightandusersareabletoviewthetestandwitnessstirringandthebreakdown.Thechamberlidisdualredundantsafetyprotectedwithmicro-switchestopreventaccidentalelectrification.
Theadvancedtestvesseldesignyieldshighlyaccurateandrepeatableresultspreviouslyonlyproducedbylaboratoryinstruments.Twostirringoptionsareavailable;aninternalmagneticbeanstirrerwhichisdroppedintotheoilandanoptionallidmountedimpellerthatconformstotheASTMD1816standard.Stirringduringbreakdowntestingisemployedtoproduceanhomogeneousdistributionofcontaminantswithintheoilandtofreeanycarbongeneratedbetweenelectrodesduringtesting.
Electrodegapissetbyprecisionadjustmentwheelsthatlockinpositionensuringthattheelectrodesdonotmoveduringabusydayinthefield.Itis,however,advisabletochecktheelectrodeconditionandgapdailybecauseitisacriticalparameterinbreakdownvoltagetesting.FlatanodisedAluminiumgapsettinggaugesaresuppliedinpopularsizestofacilitateelectrodegapsetting.Electrodesaredetachableandareavailableinshapesthatmeetallinternationalstandards,i.e.disk,sphericalandmushroom(VDE)electrodes.
TheOTS80PBislinepoweredwiththeoptionofinternalbatteries(eitherLeadAcid,NiMHornobattery)buttheOTS60PBonlyoffersNiMHbatteryornobatteryoption.Inadditiontolinepowercharging,a12VDCchargerfacilityisfactoryfittedwitheitherbatteryoption.Avehicle12VDCchargercableisprovidedtochargetheinstrument’sbatteries.Customerswhoorderoneofthebatterypackoptionsshouldbemindfuloftheneedtomaintainbatterycapacity.Asaminimum,leadacidbatteriesshouldbefullychargedevery3months.CustomerswhochosetheNiMHbatteryoptionareadvisedtooperatefrombatterywithoutlinepowerperiodicallytoensuremaximumbatterylife.
AselectionofinternationalbreakdowntestsarechosenfromalibraryofstandardsequencesandstartedfromtheuserfriendlymenuontheLCDdisplay.Thetopleveltestscreendisplaysallpertinenttestinformationtoensurethecorrectelectrodesareusedwiththespecifiedelectrodegapsetting.
ResultsareviewedonscreenandprintedoneitheranexternalUSBprinterortheinternalprinterfollowingatestresult.Intheeventofabreakdownnotoccurringbeforereachingthemaximumvoltage,theinstrumentwillreturnmaximumvoltage.Thisisasafetymeasuretoensuretheinstrumentisnotdrivenoveritsdesignedmaximumvoltage.
Theinstrumentautomaticallyturnsoffthedisplay15minutesaftercompletionofatestsequenceorlastuse.
Safetyfeaturesincorporatedinthedesignincludedualsafetymicro-switchesandzerovolttouchbar,thescreenedchamberlidandconvienentpowersupplyOn/Offswitch.Pressinganybuttonduringatestwillimmediatelyremovethehighvoltageandterminatethetest.Itisimportanttoearththisinstrumentusingthegroundconnectionattherearoftheinstrumenttoensuresafeoperation.
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Features and benefitsn Fullyautomaticbreakdowntesterwithtestvoltagesupto80kV/60kVdependingonmodeln Advanced400mloilvesselwithaccurateelectrodegapsettingandadjustmentlockingmechanismn Flatelectrodegapgaugesthatwillnotdamageelectrodesn Easycleantestchamberwithoildrainn Magneticbeadstirreroroptionallidmountedimpeller(conformingtoASTMD1816)n Directtripcontrolemployingvoltageandcurrentmeasurementn Rapidresponsetotrip(<10μs)n Automaticoiltemperaturemeasurementn IntuitiveuserinterfacewithbacklitQVGAcolourdisplay(visibleoutdoors)n OptionalVCM100Dvoltagecheckunitmeasuresvoltagedirectlyn Optionalcarrycasewithshoulderstrapn Optionaltransportcase
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Control panel and internal printer panelThecontrolpanel,illustratedbelow,islocatedtothefrontrightsideoftheinstrumentandcontainsaQVGAcolourscreen(1),navigationkeypadwith‘OK’(4)buttonanda‘TEST’(5)button.Theoperationisuserfriendlyanddrivenfromsixtoplevelwindows.Astart-upLED(2)isusedduringinstrumentinitialisation.Thelower,verticalsectionofthefrontpanelhousesanON/OFFpowerswitch(6)andaUSBTypeAinterfacesocket
Item Description
1 3.5inch,backlight,brightcolourQVGA display
2 On/offLED
3 ExternalpowerLED/icon
4 TEST’buttonwithassociatedredwarning LED
5 USBsocket 6 Navigationkeypadwith‘OK’selectbutton
Theinstrumentprinterpanel,shownbelow,housestheoptionalinternalprinter.Aflatpanelreplacestheprinterifnotordered.Theprinterisadotmatriximpactprinterwith57.5mmwidepaperroll.Paperresultsprintedonthisprinterwillnotblackeninhightemperatures.
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Rear panelTherearpanelillustratedbelowaccommodatesallconnectionstotheinstrumentwiththeexceptionofafrontfacingUSBinterface.
Item Description 1 Groundconnectionwith
cablelug
2 IEClinepowersocket
3 Fuses
4 USBTypeAsocket
5 USBTypeBsocket
6 12VDCchargersocket
Itismandatoryforsafeoperationthatanearthgroundcableisattachedtothisinstrumentbeforeperformingtests.Thegroundconnectionisidentifiedasitem1intheillustration.Attentionmustbepaidtoproductwarningsandmarkings.
LinepowerisappliedviaanIECsocket(2)andisfused(3).Theinternalbatteries,ifsupplied,canbechargedbyajacktypesocket(6)fromavehicleorcorrectlyratedwallplugtransformer.Ifbatteriesareorderedwiththisproductachargerandvehiclechargingcableissupplied.Notethattheinstrumentisnotdesignedtooperatefrom12VDC,onlytochargethebatteries.
TwoUSBinterfaceconnectors,onetypeA(4)andonetypeB(5),offerUSBhostanddeviceinterfaces.AsecondUSBtypeA(host)interfaceislocatedonthefrontoftheinstrumentforuserconvenience.TheUSBtypeAinterface(4)isusedtodriveaprinterorflash/harddiskdriveandtheUSBtypeBinterface(5)canbeusedtoconnecttheinstrumenttoalaptopPCorothercomputinghost.
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3 4 5 6
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ApplicationsTheOTS80PB/60PBisusedfordeterminingthedielectricstrengthofhighvoltageinsulatingliquids,suchastheinsulatingoilsusedintransformers,switchgearandotherelectricalapparatus.Thedielectricbreakdownvoltageisameasureoftheinsulatingabilityofaliquidtowithstandelectricalstress.Contaminantssuchascellulosicfibres,conductingparticles,dirt,andwaterreducebreakdownvoltageofaninsulatingliquid.Alowresultindicatesthepresenceofoneormoreofthesecontaminants.
Thetestsetisfullyautomatic.Theoperatorhassimplytopreparethetestvessel,loaditwithsampleoil,placeitinthetestchamber,selecttheappropriatespecificationforthetestsandthenstartthetestsequence.Thetestsetautomaticallycarriesoutthesequenceoftestsasdefinedbythepre-selectednationalspecifications.Oiltestingspecifications,forwhichthesetsarepre-programmed,areasfollows:
n ASTMD1816-04
n ASTMD877A&B
n BSEN60156
n CEIEN60156
n IEC601561995-05
n IRAM2341-72
n JISC2101-78
n PASEVEN60156
n UNEEN60156
n NFEN60156
n SABSEN60156
n VDE0370Part5
n AS1767.2.1singlemeasurement
Acriticalfactorwithrespecttofieldtestingofoilisitstemperature,becausesamplesfromatransformertakenshortlyafterswitchoffcanbemanydegreeshotterthanequivalentroomtemperaturelaboratorytestsperformedat20ºCto23ºC.TheOTS80PB/60PBinstrumentsmeasuretheoiltemperatureduringthetestsothattemperaturecorrectioncanbeappliedtoresults.
NB:Certainstandardsrequirefieldteststobeperformedbetween20ºCand30ºC.
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Preparations for useGetting startedItisimportanttoreadtheuserguidethoroughlybeforeoperatingtheOTS80PB/60PBforthefirsttime.Thesafetywarningsareparticularlyimportant.
Supply voltageBeforeconnectinglinepowertotheinstrumentthegroundconnectorshouldbeconnectedtoasuitableearthpoint.
TheOTS80PB/60PBisdesignedtooperateon50/60HzAClinepowerintherange90to265VAC.A12VDCpowercircuitforbatterychargingisfittedwheneitherNiMHorleadacidbatterypacksareordered.Thebatterycanbeeitherchargedusingthesupply12Vvehiclechargercableorfrommainspower.
Assembly
n Unpackinstrumentandcontentsofthepackingbox.
n Ensurethattheinstrumentisplacedonasolidsurfaceortablewithsufficientworkingspace.
n Connectgroundtoasuitableearthconnector.
n Fitselectedelectrodestothethreadedshaftsinthetestvesseltakingcarenottoscratchelectrodesurfaces. Electrodesshouldbehandtightenedontotheshaftstopreventanymovementduringuse.
n Adjustmentoftheelectrodegapshouldbedonewiththefeelergaugesprovided,adjustmentwheelslockedand thegaprechecked.
n Fittestvesselintoinstrumentchamber.
n Ifbatteriesarefitted,beforeswitchingontheinstrumentforthefirsttime,connectpowerandleaveforaperiodof atleastfourhours.Thiswillensureafullchargeofthebattery.
n Readthesectioninthisdocumententitled,“InstrumentOperation”beforepoweringuptheOTS80PB/60PBforthe firsttime.
n Connectlinepower.
n Turnontheinstrument.
n Followtheinstrumentsetupproceduredetailedbelow.
Instrument setup procedureTherequiredlanguageoptionisselectedfromthetopleveltabbedwindow.Usetherightarrowkeytonavigateacrossthetabstothelanguagescreen.Theflagsymbolisusedasaniconrepresentinglanguageoption.Simplyusetheup/downarrowbuttonstoselecttherequiredlanguageandpress‘OK’.Thefollowingactions,accessedfromtheSettingstabwindow,shouldbetakenbeforerunningatest:1. Setdateandtime–Time/Dateoption.2. Adjustthedisplaybacklightforoptimumlegibility–DisplaySetupoption.3. Selectunits-metricorimperial.4. Setprinteroptions.
CalibrationTheOTS80PB/60PBarecalibratedinthefactorypriortodeliverysothereisnoneedtocalibrateoninitialsetup.
AVCM100Dvoltagecheckdevicecanbeusedtoconfirmtheoutputvoltageoftheinstrumentbyreadingthevoltagedirectlyattheelectrodebeforerunningtests.PeriodiccheckingofactualtestvoltageusingtheVCM100Disrecommended.ThevoltagechecktestisaccessedfromtheToolstabwindow.
Test vessel motorised stirrer Unpacktheoptionalmotorisedstirrerassemblyfromitsboxandfitthestirrershafttotheundersideofthestirrerassembly.Theunitisreadyforuse.Theoiltestvessellidisremovedandthestirrerassemblyusedasalidforteststhatrequirestirring.
Whennotinusecareshouldbetakentostorethestirrershaftandstirrerlidassemblyinthecarrybagprovidedwiththeinstrument.
Transportation and storageTheOTS80PB/60PBareprecisioninstrumentsthatgeneratesHVto80kVandneedstobetransportedandstoredcarefully.AtransportationcaseisavailableasanoptionandrequiredbycustomerswantingtotransporttheOTS80PB/60PBbyroad,railorair.
Theunitshouldbestoredinaroomorareawheretheenvironmentiswithinthetemperaturerangeof-30ºCto65ºCandmaximumhumidityof95%at45ºC.
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Instrument operationInstrument control structureTheuserispresentedwithasetofsixtabbed,toplevelwindowsasdepictedbelowwhichfacilitateinstrumentcontrol.Leftandrightarrowkeysnavigatebetweentabs.
Home Setup File
Information Tools Language
Thehometabcontainssummaryinformationforeachshowingtheselectedautomaticteststandard,IDoftheassettheinsulatingliquidcomesfrom,thetypeofinsulator,electrodegapandthestirrerifrequired.Thisisthemainscreenfromwhichtestsarerun.
Setupwindowoffersinstrumentsettingsoflanguage(canalsobesetfromlanguagewindow–overcomesdifficultywheninstrumentissettounknownlanguages),time/date,display,units,printerandasettingtoselectfastdetectionofbreakdown.
Userscanprint,save,recall,deleteanddownloadresultstoPCorUSBdrivefromthefilewindow.
TheInformationwindowoffersdetailsabouttheinstrumentsoftwareconfiguration/versionaswellasahelpfunctionthatservesasanindexeduserguide.
Thetoolswindowofferstheabilitytomanageteststandardsincludingtheabilitytodefinecustomtests,favouritetestsandaddandremovenewstandardsandstandardupgradesviaUSBdiskorcomputerconnection.Anautomaticelectrodecleanfunctionisincludedasameansofremovingdepositsfromelectrodesurfaces.ThiswindowalsorunsatestusingtheVCM100Dvoltagetestertocheckoutputvoltageattheelectrodebarrier.
Theflagsymbolisusedasaniconrepresentinglanguageoption.Simplyusetheup/downarrowbuttonstoselecttherequiredlanguageandpress‘OK’.
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Navigation and Character EntryThekeypadconsistsofarrowkeyssurroundingan‘OK’buttonusedfornavigatingthescreensandselectingfunctionsandoptions.Thesesixbuttonsfullycontroltheinstrument.
Withineachuserinterfacewindowtheupanddownarrowbuttonsareusedtonavigateupanddownthefunctionslistedontheleftsideofthescreen.The‘OK’keyeitherscrollsthroughoptionsassociatedwitheachfunctionorentersalowerlevelwindowtoperformafunction.
Leftandrightarrowbuttonsnavigatebetweentabsonthetoplevelwindowforoptimumspeed.Individualtabwindowssavethehighlightfunctionandreturntothesamepositiononeachscreen.
Userscannavigateintolowerlevelwindowsusingtheup/downarrowbuttonsandthe‘OK’buttontoreach,forexample,the‘DisplaySetup’function.Pressingthe‘OK’buttonbringsupawindowthatenablesthebrightnesstobeadjusted.Thefollowingimagesillustratethisfunctionality.
Theusernavigatesto‘DisplaySetup’andpresses‘OK’togettothedisplaysetupwindow.Theup/downortheleft/rightbuttonsadjustbrightnesswithabarindicatorshowingbrightnesspercentage.The‘OK’buttonisusedtosetbrightnessafteradjustmentandsubsequentreturntothesettingswindow.
AvirtualQUERTYkeypadthatfacilitatesalphanumericentrytospecifyassetID,filenameandcustomtestname.Acharacterisselectedbynavigatingtoit,currentcharactershowswithabluebackground,andpressingthe‘OK’button.Aftertypingtherequiredcharactersthevirtualkeyboard‘OK’isselectedtoreturntopreviouswindow.
Numericentryisviaavirtualkeypadasshowntotheright.Digitentryisthesameasthefullvirtualkeypadwithakeypad‘OK’activatingareturntopreviouswindow.
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General instructions
Making a breakdown testSelectthe‘Home’tabwindowusingthearrowkeysand‘OK’button.Thiswindowoffersasummaryofinformationrequiredforameasurement.Thefollowingimageshowsatypicalsetupwiththeselectedstandardtest,thetestidenti-ficationorassetIDcomprisedofanassetnumberandtwodigitserialnumber,thetypeofoil,requiredelectrodegap,electrodeshapeandfinallythestirrer.
Whentheuserselectsaparticularstandardonlyvalidoptionsarepresentedwithrespecttogapsetting,electrodesandstirreroptions.
Navigationissimple;upanddownarrowbuttonsmoveupanddowntheleftsideofthewindowwhilstoptionsforeachlinecanbescrolledthroughusingthe‘OK’key,orinformationenteredinthecaseofTestID.
Test in progressDuringatestthescreenflashesredwarningHVsymbolstoremindtheuserthatahighvoltagetestisinprogress.Asasafetymeasure,anykeypresswillimmediatelyhaltthetest.
Theelectrodepotentialdifferenceisdisplayedasitrampsupinover-sizeddigitstoemphasisethepresenceofhighvoltage.
Betweenteststhereisadwelltimeandpossiblyastirringaction.Acountdowntimerindicatesperiodofdwellorstirringremaining.
Test resultsAttheendofanytestresultsareshownonthescreen.AtypicalexampleistheIEC60156test.Thisimageshowsthecompleteinformationpresentedtotheuserhoweverthescreensizeisnaturallysmallersoasliderfunctionenablestheusertonavigatethroughtheresultandprintitifrequired.
ThetestresultforIEC60156containsresultsofsixsequentialbreakdowntestswithteststatisticsofaveragebreakdownvoltage,datadispersionandstandarddeviation.
Theresultswindowfacilitatesadirectprintfunctionatthebottomoftheresultwindow.
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Managing test standards
Customtestsareteststhatcanbedefinedbyauserbygivingtheusercontrolovertherangeofparameterssetinatest.Twocustomtestshavebeenpre-programmedforuserdefinition;
n Custom(5)–thistestcontainsfivesuccessivebreakdowntests
n Custom(6)–thistestcontainssixsuccessivebreakdowntests
NavigatetotheToolstoplevelscreenasillustratedbelow.Select,“ManageTestStandards”bypressingtheOKbutton.Godownto,“EditCustomTestParameters”andpresstheOKbutton.Thecustomparametersscreenshowsasetofvariablesthatcontrolabreakdowntest.Eachvariableisusersettable,simplynavigatedowntotherequiredsetting,presstheOKbuttonandproceedtochangethevalueasrequired.FornumericentryontheOTSAFmodelsthedecimalpointcanbeenteredbyquicklypressingthedigit‘1’twice.Sotoenter2.5mmgapsettingtheuserentersthefollowingsequence:
n 2
n 1,1
n 5
n OK
Inthecustomstestparametersscreen‘setmax.kV’mayappearas,‘setkV(max.xxx)’incertainversionsoffirmware.Allentryfieldsinthecustomtestparametersscreenarerangecheckedtoensureitisvalid.WhenallvaluesaresettheusernavigatesbacktotheToolsscreenviatheRETURNfunction.TheusershouldensurethatCustom(5)andCustom(6)areselectedasfavouritetestsbeforeleavingthemanageteststandardsscreen.
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Memory functionalityBasic memory functionsTheinternalmemoryislimitedtofiftytestrecordswherearecordrepresentsafullresultofoneoftheprogrammedstandardtests.BestpracticeistobackupinternalresultsonadailybasisbyeitherdownloadingdataviaUSBcabletoPowerDBLiteorsavingontoaUSBmemorydevice.WhensavingtoUSBmemorydevice,afilenameintheformatofamaximumeightcharactersisrequiredandthefilenameenteredmustonlycontaincharactersA-Z,a-zand0-9.
Memoryfunctionsareaccessiblefromthefilesmenuandincludethefollowing:• Save• Recall• Delete• Printlastresult
TheusercanselectbetweeninternalmemoryandaUSBmemorydeviceforthesave,recallanddeletefunctions.Afterselectionofamemorylocationtherelevantfilesaredisplayedonscreen.Navigationisviathearrowkeysasfollows:
Upanddownarrowmoveupanddownoneitematatime.Leftandrightarrowsimplementapageupandpagedownfunctiontoassistnavigationwherelargenumbersoffilearepresent.
Inthedeletefunctionwindowtheusercanselectall,deselectallorselectonefileatatime.Selectasinglefilebynavi-gatingtothefile(bluehighlight)andpressingOKtoselect(redhighlightchangingtogreywhennavigatingawayfromtheselectedfile.)
Therecallfunctionoperatesononefileatatime.
Copying results from internal to USB memoryUsersmaywanttocopyresultsfrominternalmemorytoaUSBmemorydeviceaseitheranend-of-dayprocedureorwheneverthe50resultfilelimitisreached.ThefollowingprocedurewillbackupfilestoaUSBmemorydevice:
1. Fromthefilemenu,select‘Save’2. Then‘SelectUSB’3. EnterafilenameusingonlycharactersA-Z,a-zand0-9andreturntosavefunctionscreen4. Navigatedownto‘SelectResults’–afulllistofinternallysavedresultsarepresentedbyTestID.5. Selectrequiredresultsandthen‘SAVE’totransfertheresultstofilename(asentered)onthememorydevice.6. Navigatebacktotoplevelfunctionsandremovethememorydevice(ifrequired)
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Print quality and changing paperTheprintercoverisremovedbyturningthetwofastenersthroughaquarterturnandpullingthepaneloff.
Theprinterribbonmayneedtobemovedontoimproveprintquality.Todothis,removetheprintercoverandturntherighthandrotarywinderindirectionindicatedontheribboncase.Tochangetheprinterribbon,simplypresstheribbonassemblywhereitsays,“PUSHEJECT,”toremovetheoldribbonandreplacewithanewone.ThepartisanEpsonERC-09,Meggerpartnumber25995-002.
Paperisfedintothehousingwiththelosepaperfacingtherearoftheinstrument.Ensurethatthepaperisneatlycutandnotcurledupattheend.
Holdingtheendofthepaperroll,insertthepaperunderthecrossbarandintotheprinterslotasshown(bluearrows)inthedrawingopposite.Presstheprintfeedkeyrepeatedlyuntilthepaperisjustvisiblefeedingthroughtheprintmechanism.
Replacetheprinterfrontcoverbyfirstlocatingitatthebaseofthepanelandsecureitwiththefastenerswhichareturnedbackaquarterturntosecurethepanelinplace.Finallypressthepaperfeedbuttontoadvancethepaperthroughthefrontcoverpaperslot.
Vessel and ElectrodesTheoiltestvesselandelectrodesrequirenomaintenanceotherthancleaning.Electrodescanbeunscrewedandreplacedwithanothershapeelectrode.Electrodesshouldbeexaminedregularlytoensurenopittinghasoccurredandtheelectrodesrenewedwherepittingisevident.
Theinstrumentincludesabuiltinelectrodecleaningfunctionwhichcanbeactivatedfromthetoolsmenu.Thisfunctionwillperform24sequentialbreakdownstoremovedepositsonelectrodesurfaces.
VCM100DTheVCM100DisnotauserserviceableitembutmayrequireperiodiccleaningusingacleanclothdampenedwithIsopropylAlcohol(IPA).
Test vessel motorised stirrerMegger’smotorisedstirrerisintegratedintoamodifiedlidassemblyandsimplyreplacesthevessellid.Powerisconnectedviaaflushmountedrearinsertandisdisconnectedasthestirrerassemblyislifted.Thisunitisnotuserserviceable.
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Preventive maintenance
GeneralTheOTS80PB/60PBisaHVinstrumentgeneratingupto80kVandisnotuserserviceable.Theusershouldensurethatthelidisnotcrackedordistortedbeforeuse.Theonlyinternalpartoftheinstrumentthatisaccessibletotheuseristheprinterpaperhousingallowingrenewalofpaperandribbonwhenrequired.OpeningtheOTS80PB/60PBisstrictlyforbiddenandwillconstituteabreachofwarrantee.Thereisnoneedforanytoolstobeusedwiththisinstrumentotherthanthesuppliedgaugesandmagneticbeanretriever.
CleaningTocleantheoutersurfacesoftheOTS80PB/60PB,firstdisconnectfromlinepowerandthenwipetheinstrumentusingacleanclothdampenedwithIsopropylAlcohol(IPA).
Theusermustensurethatthetestchamberisalwayskeptclean,particularlypriortoatest.Wipeawayanyspiltoilinthechamberorontheoutsideofthetestvesselwithalintfreecloth.
Tocleantheinsideofthetestvesselfollowtheinstructionsgivenintherelevanttestspecificationor,inthecaseofnoinstructions,cleanedwithasmallvolumeofthenextsampleofoiltobemeasured.
Whenalotofoilisspiltinthetestchambertheunitisdesignedwithadrainfacilityattherear.Simplyunclipthecleartubeanddrainoilintoabeakerorothersuitablecontainer.
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OTS80PB/OTS60PBTechnical SpecificationThefollowingtechnicalspecificationsapplytotheOTS80PB/60PB:
Test voltage -40to0to40kV,[email protected]
Voltage resolution 0.1kV
Voltage accuracy ±1%±2digits
Vessels400ml(standard)150ml(option) Thermoplasticpolyamidechamberprovidesprecisionelectrode alignment,adjustmentwheelslockelectrodesinposition
Temperature sensor resolution 1ºC
Power supply Linevoltage/power 90to264VAC,300VA Linefrequency 48/63Hz
Fuses 2x4ACFSTceramic,20mmx5mm,for250V
Batteries (optional) LeadAcid2x12V4Ah,orNiMH24V2Ah
DC power supply 12VDC,60VA–fittedwithbatteryoption,usedtochargebatteryonly
Internal printer (option) Dotmatriximpactprinterwithgraphicaloutput Paper57.5mmwide,weight52gmperroll EpsonblackribboncassetteERC-09B
Protection Safetyinterlockontestchamber Dischargebarrieronpolycarbonatetestchambercover
Display 320x240QVGAcolourdisplaywithbacklight
Dimensions (W x H x D) OTS80PB 520mmx380mmx250mm
OTS60PB 520mmx330mmx250mm
Weight OTS80PB 20.5kg(nobattery) 21kg(NiMHbattery) 23.5kg(withLeadacidbatteries)
OTS60PB 16.3kg(nobattery) 16.8kg(NiMHbattery)
Operating temperature 0ºCto+50ºC
Storage temperature -30ºCto+65ºC
Humidity 80%RHat40ºCoperation 95%RHat40ºCstorage
Altitude 1000m
Safety DesignedinaccordancewithIEC61010
EMC LightindustrialIEC61326-1ClassB,CISPR22,CISPR16-1andCISPR16-2
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VCM100D Calibration meter Technical SpecificationTheVCM100DisanOTSaccessoryenablesthevoltageoutputoftheoiltestsettobecheckedbymeasuringtheactualvoltageattheHVelectrodes.ThecalibrationmeterfitsintheoiltestsetchamberinplaceofastandardvesselandisdesignedtoensurethattheloadontheOTStransformerissimilartotheloadduringanoildielectricstrengthtest.
Meter type Proprietary100kVMeggerOTSvoltmeterwith4seven-segmentdigit digitalreadout
Accuracy at 23 °C 2.0%plus2digitsto50kVrms 2.5%plus2digits>50kVrmsto75kVrms 3.0%plus2digits>75kVrmsto100kVrms
Temperature range Operational 0°Cto40°C
Storage -30°Cto+70°C
Humidity range Operational 80%RHat40°C
Storage 93%RHat40°C
Safety ThemeterisonlyapprovedforusewithMeggeroiltestsets
Dimensions (W x H x D) 250mmx150mmx115mm
Weight 1.8kg
Storage and transportationTheOTS80PB/60PBareprecisioninstrumentthatgeneratesHVto80kVandneedstobetransportedandstoredcarefully.AtransportationcaseisavailableasanoptionandrequiredbycustomerswantingtotransporttheOTS80PB/60PBbyroad,railorair.Asoft,shouldercarrycaseisprovidedasanoptionwiththeOTS80PB/60PB.Itopensuptofacilitaterunningatestwithoutremovaloftheinstrumentandprovidestwosidepouchesforstorage.
Theunitshouldbestoredinaroomorareawheretheenvironmentiswithinthetemperaturerangeof-30ºCto65ºCandmaximumhumidityof95%at45ºC.
IftheOTS80PB/60PBhasbatteriesfitteditshouldbefullychargedatleastonceeverythreemonthstomaintainfullbatterycapacity.
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Factory fitted accessoriesn Internalprintern Battery–eitherLeadacid(OTS80PBonly),NiMHbatteryornobattery(linepoweronly)optionn Internal12Vchargerand12Vvehiclecabletochargebatteries(nottooperatetheinstrument)n Electrodesets–IEC,ASTMandfullelectrodesetcontainingoneofeachtypeofelectroden Vessellidmountedimpellerforusewith400mlvesseln Powerlead
Optional accessories & sparesn Transportationcasen VCM100Dvoltagemetern Vesselassembly400mln Vesselassembly150mln Vessellidmountedimpellerforusewith400mlvesseln ElectrodesetsIEC156n ElectrodesetASTMD877/1816n Fullelectrodeset–containsallelectrodesn Printerpapern Barcodereader,USB
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Repair and warranty
TheTestsetcircuitcontainsstaticsensitivedevices,andcaremustbetakeninhandlingtheprintedcircuitboard.Iftheprotectionofaproducthasbeenimpaireditshouldnotbeused,andbesentforrepairbysuitablytrainedandqualifiedpersonnel.Theprotectionislikelytobeimpairedif,forexample,theproductshowsvisibledamage,failstoperformtheintendedmeasurements,hasbeensubjectedtoprolongedstorageunderunfavourableconditions,orhasbeenexposedtoseveretransportstresses.
New products are guaranteed for 1 year from the date of purchase by the user.Note: Any unauthorized prior repair or adjustment will automatically invalidate the warranty.
InstrumentrepairandsparepartsForservicerequirementscontact:–
MeggerLimited or Megger ArchcliffeRoad ValleyForgeCorporateCenter Dover 2621VanBurenAvenue Kent,CT179EN Norristown,PA194 England U.S.A.
Tel:+44(0)1304502243 Tel:+1(610)676-8579 Fax:+44(0)1304207342 Fax:+1(610)676-8625
oranapprovedrepaircompany.
Approved repair companiesAnumberofindependentcompanieshavebeenapprovedforrepairworkonmostMeggerproducts,usinggenuineMeggerspareparts.ConsulttheAppointedDistributor/Agentregardingspareparts,repairfacilitiesandadviceonthebestcourseofactiontotake.
Returning a test set for repairIfreturningatestsettothemanufacturerforrepair,itshouldbesentfreightpre-paidtotheappropriateaddress.Acopyoftheinvoiceandofthepackingnoteshouldbesentsimultaneouslybyairmailtoexpediteclearancethroughcustoms.Arepairestimateshowingfreightreturnandotherchargeswillbesubmittedtothesender,ifrequired,beforeworkontheinstrumentcommences.
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MeggerLimitedArchcliffeRoad,DoverKentCT179ENEnglandT+44(0)1304502101F+44(0)[email protected]
Megger4271BronzeWay,Dallas,Texas75237-1019USAT+18007232861(USAONLY)[email protected]
MeggerValleyForgeCorporateCentre2621VanBurenAvenueNorristown,[email protected]
MeggerSARLZ.A.DuBuissondelaCouldre23rueEugèneHenaff78190TRAPPESFranceT+33(0)130.16.08.90F+33(0)[email protected]
Megger110MilnerAvenueUnit1ScarboroughOntarioM1S3R2CanadaT+14162989688(Canadaonly)[email protected]
Megger501CrystalParadiseMallOffVeeraDesaiRoadAndheri(w),Mumbai-400053MaharashtraIndiaT+912226740468F+912226740465
MeggerSweedenABEldarvägen4Box2970SE-18729TÄBYSwedenT+46851019500F+46851019595
MeggerPtyLimitedUnit269HudsonAvenueCastleHillSydneyNSW2125AustraliaT+61(0)296592005F+61(0)[email protected] ProgrammaGmbH
MeggerABObereZeil261440OberurselGermanyT06171-92987-0F06171-92987-19
ProgrammaElectricAGOb.Haselweg6305727Oberkulm,AargauSwitzerlandT+41627682030F+41627682033
ThisinstrumentismanufacturedintheUnitedKingdom.Thecompanyreservestherighttochangethespecificationordesignwithoutpriornotice.
Meggerisaregisteredtrademark
PartNo.OTS80PB_OTS60PB_en_V010210www.megger.com
M