XITRON XT2640 - Page 50

XT2640OperatingManual 13July2016 Page50of187
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ThisscreenshowsthemeanVolts,meanAmps,totalWatts,totalVA,totalVAR,totalPFandFrequencymeasurementsforthe
selectedVPA.
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Theprimarymeasurementresultsareshownusingalargefontandcoloredyellow‐gold.
CAUTION:IfVand/orAsignalshaveRMSvalueswhicharebeyondthemeasurementcapabilityofthechannelthenthe
respectiveprimarydataiscoloredred.Youshouldensurethatthesignalsarewithinthecapabilitiesofthechanneland
shouldreducethesignallevelsassoonaspossibleotherwisethechannelmaybedamaged.
TheprimaryWatts,VA,VARandPFdataisthetotaldatafortheVPA.
TheprimaryVoltsandAmpsdataistheaverageforallphases/channelsintheVPA.
Whetherthecurrentisleadingorlaggingthevoltagecanbedeterminedbythedirectionofanarrowshownimmediatelyafterany
PFdatashown.Ifthearrowispointingupwardsthenthecurrentisleading,ifdownwardsthenitislagging.
TheWatts,VA,VAR,PF,VoltsandAmpsresultsaregroupedwiththeirrespectivesecondaryresults.
Thesecondaryresultsareshowninasmallerfontandarecoloredwhiteandthesemaybedisabledorenabledbypressing
theDETAILED/BASICButton.
ForalldatathesecondaryresultsshowtheindividualchannelresultsforeachchannelintheVPA.
For3ø3w(2ch)and3ø3w(3ch)WIRINGsettingsthesecondaryvoltagesarethephase‐to‐phasevoltagesandtheprimary
voltageistheaverageofthethreephase‐to‐phasevoltages.
For3ø3w(2ch)and3ø3w(3ch)WIRINGsettingstheWyevoltageconversionisalsoshown.
For3ø4wWIRINGsettingtheDeltavoltageconversionisalsoshown.
Whetherthecurrentisleadingorlaggingthevoltagecanbedeterminedbythedirectionofanarrowshownimmediately
afteranyPFdatashown.Ifthearrowispointingupwardsthenthecurrentisleading,ifdownwardsthenitislagging.
ThePHSdatainthePFgroupsecondarydataistheinversecosineofthePFdatawiththepolaritysetfromthelead/lag
determination.
Thefrequencyshown(ifany)isthefundamentalfrequencyobtainedforthischannel,fromthesourceconfiguredbytheFUND
settingintheMEASCONFIGscreenforthischannel.
IfMEASURINGisshownforfrequencywithnoothermeasurementresults,thenthisindicatesthatthefirstmeasurementis
beingmadewithanewconfiguration.Thisistemporary(unlessmeasurementsareheld);assoonasthefirstmeasurement
resultsareavailabletheywillbeshown.
IfNOFUNDAMENTALisshownforfrequency,thenthisindicatesthatthesignalprovidingthefundamentalfrequency
measurement(theFUNDsettingintheMEASCONFIGscreenforthischannel)iseithernotpresentorhasnotbeen
measuredyetfollowingachangetothemeasurementconfiguration.
IfconfiguredforLForVLFmeasurements(bytheLF/PERIODsettingintheMEASCONFIGscreenforthischannel)thena
measurementprogressbarisincludedinthelowerrightcornerofthedatawindow.
12.5.2.2 INRUSHDATA
ThisisviewedbyselectingtheINRUSHselectionintheDataSelectButton.
ThisscreenshowsthehighesttotalACDCWatts,highestphaseACDCVolts,highestphasePeakVolts(largestexcursionfromzero),
highestphaseACDCAmps,andthehighestphasePeakAmps(largestexcursionfromzero)fortheselectedVPA.Thedatashownon
thisscreenisresetbypressingtheCLEARbutton.
Note:
ThemeasurementsobtainedforinrusharenotaffectedbytheRESPONSEsettingfortheVPA.