Extech Instruments TM500 Guia do Utilizador descarregar pdf (Página 7)

7 TM500-EU-EN v1.1 12/13

Measurementsandrelatedfeatures

BasicThermocoupleMode

ThermocouplesareconnectedatthetopofthemetertothejackslabeledT1throughT12.

Selectthethermocoupletype(J,K,etc.)tomatchthethermocoupletypeused.Innormal

thermocouplemodethemeterwillsimultaneouslydisplaythetemperatureforthermocouples

T1throughT12.Dashesaredisplayedifathermocouple

isnotconnectedorifthemeasurement

isoutofrange.

DataHold

Tofreezeameasurementonthedisplay,presstheHOLDbuttonmomentarily.Themeterwill

emitabeep,thereadingwillhold,andtheHOLDiconwillswitchon.PresstheHOLDbutton

againtoreleasethedisplayandexittheDataHoldmodereturningthemetertothenormal

operatingmode.

TemperatureDisplayOFFSET

TheVPC300allowstheusertosetadisplayoffsetthatappliestoallofthethermocouple

displaysequally.Tosetthedisplayoffsetfollowthestepsbelow:

1. PressandholdtheOFFSETbutton for3secondstoreachtheoffsetscreen.The

temperatureontheleftisthecurrentlydisplayedtemperatureforChannel1andthe

temperatureontherightistheoffsettemperature

2. Use

theupanddownarrowkeystoadjustthedisplayontherighttooffsetthedisplayas

desired.

3. Whenfinished,presstheENTERbuttontostoretheoffsetandreturntonormaloperation.

4. Allofthethermocouplereadingswillnowreflecttheoffsetvalueprogrammedbythe

user.



TocleartheOFFSET,followthestepsbelow:

1. SwitchthemeterpowerOFF

2. PressandholdtheHOLDandRECbuttonswhileswitchingthemeterpowerON

3. ReleasethetwobuttonswhenthemeterswitchesON

4. PressandholdtheOFFSETbutton for5secondsandthe

displaywillshowCODE100

5. UsetheuparrowbuttontochangefromCODE100toCODE125andthenpressENTER

6. UsethearrowbuttonstoselectYESorNOandthenpressENTER

7. IfYESisselected,themeterwillclearthepreviouslyprogrammedoffset.

IfNOisselected,

themeterwillretaintheoffsetprogrammedbytheuser.

MAX‐MINReadings

Foragivenmeasurementsession,thismetercanrecordthehighest(MAX)andthelowest(MIN)

readingsforlaterrecall.

1. PresstheRECbuttonmomentarilytoaccessthismodeofoperation(RECiconappears)

2. ThemeterisnowrecordingtheMAXandMINreadings.

3. PresstheRECbutton

againtoviewthecurrentMAXreadings(MAXiconappears).The

readingsonthedisplayarenowthehighestreadingsencounteredsincetheRECiconwas

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