XITRON XT2640 - Page 99

XT2640OperatingManual 13July2016 Page99of187
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mustconsiderwhethertoassumethattheseconditionsarepresentornotdependingontheconstructionoftheEUT
independentlyoftheindicationsoftheXT2640).
5.
Which“circumstances”requiredforthetableselectionweredetected(EN61000‐3‐12only,doesnotincludecircumstanceb).
18.4.4.4 TEXTUALRESULTS–ASSESSME NT
TheASSESSMENTareashowsthestatusofanongoingassessment,orthefinalassessmentafteranassessmenthasbeencompleted.
PASS(orPASSINGduringanassessment)isshowncoloredgreeniftheresultofcheckingthelimitsisapass,otherwiseFAIL(or
FAILINGduringanassessment)isshowncoloredred.Theassessmentpass/failshownisthetotalassessment,forallphasesofthe
EUT.
Ifafailureisdetectedwithinthechannelselectedtobedisplayed,thenbelowthisisalistingofthelowestnumberedharmonics(up
tothreearelisted)whicharecausingthefailure.Thefailuresshownare‐
AVG>LIMIT:Thisindicatesthattheindicatedharmoniccurrentinthischannelhasanaveragemeasuredvalueabovethe
applicablelimitandnoexemptionwasfoundwhichwouldallowthis.
MAX>LIMIT:Thisindicatesthattheindicatedharmoniccurrentinthischannelhadoneormoremeasuredvaluesduring
theassessmentwhichwereabovetheapplicablelimitandnoexemptionwasfoundwhichwouldallowthis.
THC>LIMIT:ThisindicatesthattheTHC(TotalHarmonicCurrent,ascalculatedfromtheaverageharmonicsoverthe
entireassessment)forthischannelwasabovetheallowablelimit(EN61000‐3‐12only).
PWHC>LIMIT:ThisindicatesthatthePWHC(PartialWeightedHarmonicCurrent,ascalculatedfromtheaverage
harmonicsovertheentireassessment)forthischannelwasabovetheallowablelimit(EN61000‐3‐12only).
Note:
IfnothingisshownbelowaFAILorFAILINGstatusthenthechannelselectedtobedisplayedisnotcausingthefailure
AlthoughaPASSING/FAILINGstatusisshownfortheEUTduringanassessment,thisisnotthefinalstatusandmaychange
laterduringtheassessment.Similarly,thelistedfailuresshownformeasuredharmonicsisnotthefinallistandmaychange
laterduringtheassessment.
ThepresenceorabsenceofAVG>LIMITandMAX>LIMITindicationsdonotmeanthattherespectivedataisaboveorbelow
thelimitascontainedinthetableofthestandard,butitspresenceindicatesthatitisabovethemaximumamountallowedby
thestandardforthatspecificdataafterincludinganyallowableexemptions,seeEN61000‐3‐2clause6.2.3.4orEN61000‐3‐12
clause4.2.5fordetailsregardinghowthetablelimitsareappliedaslimitsonmeasuredharmonicdataandanyexemptions
whichmaybeapplied.
IfanindicatedharmonicfailsforbothAVG>LIMITandMAX>LIMITreasonsthenonlytheAVG>LIMITreasonisshownin
thislist.
TheTHCandPWHC>LIMITindicationsareasrequiredbyEN61000‐3‐12andsodonotusethemeasurementsofTHCand
PWHCbutareinsteadcalculatedfromtheaverageindividualharmonicsthroughouttheassessment(includingdisregarding
harmonicsinthecalculationofTHCandPWHCiftheiraveragemeasuredvalueisbelowtherequireddisregardlevel,see
EN61000‐3‐12clause4.2.5).
18.4.4.5 GRAPHICALLYCH ARTEDRESULTS
Belowthetextualresultsisachartwhichshowsoneofvariousmeasurementsmadebytheselectedchannelastheyhavebeentaken
duringtheassessment.
YoucanselectwhichofthefollowingmeasurementsistobetracedonthischartbyusingtheUPandDOWNarrowkeystotheleftof
thechart.
Arms:theRMSmeasurementsofRMScurrentarechartedandtheMax,AvgandMinnumericaldatashownarethemaximum,
averageandminimummeasurementsduringtheentireassessment.
Watts:themeasurementsofpowerarechartedandtheMax,AvgandMinnumericaldatashownarethemaximum,average
andminimummeasurementsduringtheentireassessment.
THC:themeasurementsofthetotalharmoniccurrent(thecombinationofallharmonicsotherthanthefundamental)are
charted.NotethatthechartdoesnotshowthedatawhichischeckedagainstaEN61000‐3‐12limitasthatdataistheTHCof
theaverageharmonicsthroughouttheassessment,howevertheLimandAvgnumericaldatashownarethelimitandthatdata
respectivelyandifperformingEN61000‐3‐12assessmentthentheAvgdataiscoloredredorgreenaccordingtoifitfailsor
passesrespectivelyandthelimitvalueisplottedonthechartasahorizontallineatthatcurrentlevelforreferencepurposes.
AlthoughthismeasurementisnotusedforEN61000‐3‐2assessmentsitisstillavailableasausefulreference.
POHC:themeasurementsofthepartialoddharmoniccurrent(thecombinationofalloddharmonics21
st
andabove)are
charted.NotethatthechartdoesnotshowthedatawhichisusedtodefinethePOHCbasedexemptionforEN61000‐3‐2
harmonicsasthatdataisthePOHCoftheaverageharmonicsthroughouttheassessment,howevertheLimandAvgnumerical
datashownarethelimitandthedatarespectivelywhichareusedforthatexemptionandifaEN61000‐3‐2assessmentis
beingperformedthelimitvalueisplottedonthechartasahorizontallineatthatcurrentlevelforreferencepurposes.
AlthoughthismeasurementisnotusedforEN61000‐3‐12assessmentsitisstillavailableasausefulreference.
PWHC:themeasurementsofthepartialweightedharmoniccurrent(thecombinationofallharmonics14
th
andabove,each
weightedbytheirharmonicnumber)arecharted.Notethatthechartdoesnotshowthedatawhichischeckedagainsta
EN61000‐3‐12limitasthatdataisthePWHCoftheaverageharmonicsthroughouttheassessment,howevertheLimandAvg
numericaldatashownarethelimitandthatdatarespectivelyandifperformingEN61000‐3‐12assessmentthentheAvgdata
iscoloredredorgreenaccordingtoifitfailsorpassesrespectivelyandthelimitvalueisplottedonthechartasahorizontal
lineatthatcurrentlevelforreferencepurposes.AlthoughthismeasurementisnotusedforEN61000‐3‐2assessmentsitis
stillavailableasausefulreference.