Extech Instruments TM500-NIST - Page 10

10 TM500-EU-EN v1.1 12/13
AutomaticDatalogging
Inautomaticdataloggingmodethemetertakesandstoresareadingatauser‐specifiedsampling
rateontoanSDmemorycard.Themeterdefaultstoasamplingrateoftwoseconds.Tochange
thesamplingrate,refertotheSetupModesection(thesamplingratecannotbe‘0’for
automatic
datalogging):
1. PressRECbuttontoturnonrecordmode.TheRECiconwillappearintheupperleftcorner
ofthedisplay.
2. StartanautomaticDataloggingsessionbypressingtheLOGGERbutton.
3. ThemeterwillscanforanSDcardandverifythatitcanbeused
tostoredata.Ifacardis
notinsertedorifthecardisdefective,themeterwilldisplaySCANSDindefinitely.Inthis
case,switchthemeterOFFandtryagainwithavalidSDcard.
4. IftheSDcardisvalid,thedisplaywillshowtheDATALOGGERicon
andthenthe
DATALOGGERandtheRECiconswillflasheachtimethatareadingisstored.
5. TopausethedataloggerpresstheLOGGERbuttonmomentarily.TheDATALOGGERandREC
iconswillstopflashing.ToresumeloggingsimplypresstheLOGGERbuttonagain
momentarily.
6. Toterminatethedatalogging
sessionpresstheLOGGERbuttontostoptheloggingandthen
presstheRECbuttonforatleast1.5seconds.
7. WhenanSDcardisusedforthefirsttimeafolderiscreatedonthecardandnamed
TMD01.Upto99spreadsheetdocuments(eachwith30,000readings)
canbestoredinthis
folder.
8. WhendataloggingbeginsanewspreadsheetdocumentnamedTMD01001.xlsiscreatedon
theSDcardintheTMD01folder.Thedatarecordedwillbe placedintheTMD01001.xls
documentuntil30,000readingsarereached.
9. Ifthemeasurementsessionexceeds30,000readings,anew
documentwillbecreated
(TMD01002.xls)whereanother30,000readingscanbestored.Thismethodcontinuesfor
upto99documents,afterwhichanotherfolderiscreated(TMD02)whereanother99
spreadsheetdocumentscanbestored.Thisprocesscontinuesinthissamefashionwith
foldersTMD03throughTMD10(lastallowablefolder).