Extech Instruments TM500-NIST User Manual

9 TM500-EU-EN v1.1 12/13
DataloggingandPCInterface
TypesofDataRecording
 ManualDatalogging:Manuallylogupto99readingsontoanSDcardviapush‐buttonpress.
Thesampleratemustbesetto0toimplementthismode.
 AutomaticDatalogging:AutomaticallylogdataontoanSDmemorycardwherethenumber
ofdatapointsisvirtuallylimitedonlybythecardsize.Readingsareloggedataratespecified
bytheuserfrom1to3600seconds.
 RS‐232/USB:ThemeterincludesanRS‐232/USBPCinterfacejacklocatedonthelowerright
sideofthemeterunderthesn
ap‐offcompartmentcover.ForstreamingofdatatoaPCvia
theRS232Outputjack,theoptional407001‐USBkit(USBcableanddriverCD)alongwiththe
407001softwareare required.
SDCardInformation
 InsertanSDcard(from1Gsizeupto16G)intotheSDcardslotatthebottomofthemeter.
Thecardmustbeinsertedwiththefrontofthecard(labelside)facingtowardtherearofthe
meter.
 IftheSDcardisbeingusedforthefirsttimeitisrecommendedthatthecardbeformatted
andthelogger’sclocksettoallowforaccuratedate/timestampingduringdatalogging
sessions.RefertotheSetupModesectionforSDcardformattingandtime/datesetting
instructions.
 EuropeanandUSAnumericalformatsdiffer.ThedataontheSDcardcanbe formattedfor
eitherformat.ThemeterdefaultstoUSAmodewhereadecimalpointisusedtoseparate
unitsfromtenths,i.e.20.00.TheEuropeanformatusesacomma,i.e.20,00.Tochangethis
setting,refertotheSetupModesection.
ManualDatalogging
InthemanualmodetheuserpressestheLOGbuttontomanuallylogareadingontotheSDcard.
1. Setthesamplingrateto‘0’secondsasdescribedintheSetupModesection.
2. PressRECbuttontoturnonmanualrecordmode.TheRECiconwillappearintheupper
leftcornerofthedisplay.Thelowerportionofthedisplaywillshowp‐n(n=memory
positionnumber1‐99).
3. PresstheENTERbutton momentarilytologareadingintomemory.TheLOGGERiconwill
flasheachtimeadatapointisstored(theSCANSDiconwillapp earwhenthe meter
accessesthecard).
4. Advancetothenextmemorylocationusingtheuparrow▲button.
5. Toexitthemanualdataloggingmode,pressandholdtheRECbuttonforatleast1.5
seconds.
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Extech Instruments TM500-NIST Specifications

General

Humidity Range	0 to 100% RH
Humidity Accuracy	±3% RH
Sampling Rate	1 second to 24 hours
PC Interface	USB
Battery	3.6V Lithium Battery
Type	Thermo-Hygrometer Data Logger
Temperature Range	-4 to 140°F (-20 to 60°C)
Temperature Accuracy	±0.5°C (±0.9°F)
Resolution	0.1°F/°C; 0.1%RH
Battery Life	1 year (typical)
Certification	NIST-traceable calibration