Extech Instruments TM500 - Page 8

8 TM500-EU-EN v1.1 12/13
switchedon(whentheMAX‐MINbuttonwasfirstpressed).TodeletetheMAXvalue,press
theHOLDbutton.ThedisplaywillshowjusttheRECicon.
4. PresstheRECbuttonagaintoviewthecurrentMINreadings(MINiconappears). The
readingsonthedisplayarenowthelowestreadingsencounteredsincetheRECiconwas
switchedon(whe
ntheMAX‐MINbuttonwasfirstpressed).Todeletethe MINvalue,press
theHOLDbutton.ThedisplaywillshowjusttheRECicon.
5. ToexittheMAX‐MINmode,pressandholdtheRECbuttonforatleast1.5seconds.The
meterwillbeep,theREC‐MAX‐MINiconswillswitch
off,theMAX‐MINmemorywillclear,
andthemeterwillreturntothenormaloperatingmode.
DisplayBacklight
ToturnthedisplaybacklightONorOFF,pressthebacklight buttonmomentarily.Themeter
willbeepwhenswitchingthebacklightONorOFFunlessthebeeperisdisabledasdescribedin
theSetupModesectionofthisuserguide.
TimeCheck
MomentarilypresstheSETbuttonandthemeterscurrentDateandTimewillappearinthe
lowerleftcornerofthedisplay.
SamplingTimeCheck
Wheninnormalmode,presstheLOGGERbuttonmomentarily.TheSampleratesettingwill
appearinthelowerleftcornerofthedisplay.
RS‐232/USBPCInterface
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.
ACPowerAdaptor
Thismeterisnormallypoweredbyeight(8)1.5V‘AA’batteries.Anoptional9Vpoweradaptoris
available.Whentheadaptorisused,themeterispermanentlypoweredandthepowerbutton
willbedisabled.
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