XITRON XT2640 - Recording Inrush Data

XT2640OperatingManual 13July2016 Page74of187

peakcurrentsurgeandameasureoftheshort‐termRMScurrentsurge(whichistypicallymuchlowerthanthepeak
surge).
c.
TheVpk,andVdatashowsthehighestpeakvoltageandhighestRMSvoltagerespectively.Thisistypicallynot
particularlyimportantforinrushcurrentmeasurements,butifitshowsveryhighvoltagesthenthiscouldindicatethat
thesupplyhasexcessiveovershootwhenrecoveringfromthesurgecurrentsoitmightnotbesuitableforthistypeof
testing.
d.
TheWdatashowsthehighestsinglemeasurementperiodpowersurge.Typicallythisisnotusedforinrush
applications.
Note:
ThemeasurementsobtainedforinrusharenotaffectedbytheRESPONSEsettingfortheVPA.
Ifitisdesiredtoperformnormalpowermeasurementsafterperforminginrushmeasurementsusingthismethod,thenyoumustnot
forgettoreturntotheMEASCONFIGscreenandre‐applytheoriginalsettingsifanywerealteredfortheinrushmeasurement.
14.3 RECORDINGINRUSHDATA
Themethodsforperformingthisarefullydescribedinsection23.
Whichevermethodisusedtoobtaintheinrushmeasurement,theresultingdatacanberecordedbysavinganimageofthescreen
showingtheresultstoagraphicfileonanexternalUSBdriveattachedtothefrontpanelUSBport.
Briefly,thisisperformedby–
 InsertthedriveintothefrontpanelUSBportandwaitforittobeREADY.
 Displaythescreentoberecorded.
 PresstheDRIVEINFOareaofthescreen,thescreenshowsthefileexport/importscreen.
 PresstheSCREENIMAGEbutton.Thescreenchangestoallowingyoutoenterafilename.
 Enterthedesiredfilename(theextensionisautomaticallyprovided).
 Ifthefilealreadyexiststhenyouarepromptedtorespondifyouwishtooverwriteitornot.
 Thefileisthenwritten.
IftheinrushwaveformwascapturedusingtheSCOPEVIEWscreenthenthatdatacanbeexportedtoa.CSVformattextualfileonan
externalUSBdriveattachedtothefrontpanelUSBport.ThisfilecontainsatabulationofthepointsineachSCOPEVIEWwaveform
forallchannels.
Briefly,thisisperformedby–
7.
InsertthedriveintothefrontpanelUSBportandwaitforittobeREADY.
8.
PresstheDRIVEINFOareaofthescreen,thescreenshowsthefileexport/importscreen.
9.
PresstheSCOPEDATAbutton.Thescreenchangestoallowingyoutoenterafilename.
10.
Enterthedesiredfilename(theextensionisautomaticallyprovided).
11.
Ifthefilealreadyexiststhenyouarepromptedtorespondifyouwishtooverwriteitornot.
12.
Thefileisthenwritten.

