Extech Instruments GX900 Bedienungsanleitung

USERGUIDE

TRUERMSINDUSTRIALMULTIMETER

MODELGX900

99 Washington Street

Melrose, MA 02176

Phone 781-665-1400

Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

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INTRODUCTION

ThankyouforselectingtheExtechModelGX900TrueRMSMultimeterwithhigh

measurementaccuracy,quickA/Dconversionrates,andbuilt‐indataloggingand

trendingfeatures.Thisdeviceisshippedfullytestedandcalibratedand,with

properuse,willprovideyearsofreliableservice.ExtechInstrumentsisanISO‐

9001certifiedcompany.

KEYFEATURES

MeasuresAC/DCVoltageandCurrent(includingremoteClampcurrent),

Resistance,Capacitance,Frequency(electricalandelectronic),RPM,Duty

Cycle,dBm/dBV,Diode,Continuity,andTemperature

Built‐indataloggerandtrendfeaturesstoremeasurementdatawith

convenientrecallfunctionality

Maximumreading(MAX)andMinimumReading(MIN)memoryfeatures

ReadingHOLDfeatureforfreezingdisplayedinformation(withAutoHold)

IntuitiveTFTcolorLCDdisplayandconvenientkeypadpush‐buttoncontrol

On‐screenHELPutilityforuserhintsandapplicationinformation

QuickA/DconversionsamplerateswithlowpassACfiltering

Internalreal‐timecalendarclockfortimestamping

Industrialstrengthmeterhousing

PleasevisittheExtechInstrumentswebsite(www.extech.com)for

thelatestversionsofManuals,Software,Productupdates,and

othercurrentinformation.

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TABLEOFCONTENTS

INTRODUCTION.......................................................................................2

KEYFEATURES.........................................................................................2

TABLEOFCONTENTS...............................................................................3

SAFETY....................................................................................................6

INTERNATIONALSAFETYSYMBOLS..........................................................6

IEC1010OVERVOLTAGEINSTALLATIONCATEGORIES...............................6

CAUTIONS...............................................................................................7

SAFETYINSTRUCTIONS–INPUTPROTECTIONLIMITS..............................8

FCCCOMPLIANCE....................................................................................9

DESCRIPTIONS.......................................................................................10

METERDESCRIPTION.............................................................................10

INPUTTERMINALDESCRIPTION.............................................................10

KEYPADDESCRIPTION...........................................................................11

LCDDISPLAYDESCRIPTION....................................................................12

QUICKSTARTGUIDE..............................................................................13

MEASUREMENTS...................................................................................14

DCVOLTAGEMEASUREMENTS..............................................................14

ACVOLTAGEMEASUREMENTS..............................................................15

dBm/dBVACMEASUREMENTS..............................................................15

LOWPASSFILTERFORACVMEASUREMENTS........................................16

DC/ACMILLIVOLTMEASUREMENTS......................................................16

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CURRENTCLAMPMEASUREMENTS.......................................................17

DCCURRENTMEASUREMENTS..............................................................18

ACCURRENTMEASUREMENTS..............................................................19

RESISTANCEMEASUREMENTS...............................................................20

CONTINUITYCHECK...............................................................................21

DIODETEST...........................................................................................21

TEMPERATUREMEASUREMENTS..........................................................22

CAPACITANCEMEASUREMENTS............................................................23

FREQUENCY,DUTYCYCLE,PULSEWIDTH,PERIODMEASUREMENTS....23

RPMMEASUREMENTS...........................................................................24

COUNTERMEASUREMENTS...................................................................24

FUNCTIONSANDFEATURES...................................................................25

FUNCTIONMENUBASICS......................................................................25

THE‘HELP’UTILITY................................................................................25

AUTOMATICANDMANUALRANGING...................................................26

ACANDDCSIGNALS..............................................................................26

MINIMUM(MIN)ANDMAXIMUM(MAX)READINGS............................27

CAPTURINGPEAKVALUES.....................................................................28

RELATIVEMODE....................................................................................28

DATAHOLDANDAUTO‐HOLDMODE....................................................29

STORINGINDIVIDUALSCREEN‐SHOTS...................................................29

VIEWINGMEMORYDATA......................................................................29

VIEWTRENDDATA................................................................................30

RECORDINGMEASUREMENTS(DATALOGGING)....................................31

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ZOOMINGONTRENDDATA...................................................................32

METERSETUPOPTIONS.........................................................................32

RESETTHEMETERSETUPOPTIONS........................................................32

METERINFORMATIONSCREEN..............................................................33

SETTINGTHEEVENTTHRESHOLDVALUE...............................................33

CHANGECALIBRATIONPASSWORD.......................................................33

CALIBRATIONACCESS............................................................................34

BLUETOOTHTMCAPABILITY....................................................................34

GX900SOFTWARE.................................................................................34

SETTINGTHEDATEANDTIME...............................................................35

AUTOMATICPOWEROFF......................................................................35

TIMEANDDATEFORMATS....................................................................36

NUMERICFORMAT................................................................................36

LANGAUGEFORMAT.............................................................................36

BATTERYANDFUSEREPLACEMENT.......................................................37

BATTERYREPLACEMENT........................................................................37

FUSEREPLACEMENT..............................................................................38

SPECIFICATIONS.....................................................................................39

GENERALSPECIFICATIONS.....................................................................39

ELECTRICALSPECIFICATIONS.................................................................40

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SAFETY

INTERNATIONALSAFETYSYMBOLS

Thissymbol,adjacenttoanothersymbolorterminal,indicatestheusermust

refertothemanualforfurtherinformation.



Thissymbol,adjacenttoaterminal,indicatesthat,undernormaluse,

hazardousvoltagesmaybepresent



Doubleinsulation



Thissymboladvisestheuserthattheterminalssomarkedmustnotbe

connectedtoacircuitpointatwhichthevoltagewithrespecttoearthground

exceeds(forthisspecificinstrument)1000VACorVDC



WARNINGThissymbolindicatesapotentiallyhazardoussituation,whichifnot

avoided,couldresultindeathorseriousinjury.

CAUTIONThissymbolindicatesapotentiallyhazardoussituation,whichifnot

avoided,couldresultindamagetotheinstrument.

IEC1010OVERVOLTAGEINSTALLATIONCATEGORIES

OVERVOLTAGECATEGORYI

EquipmentofOVERVOLTAGECATEGORYIisequipmentforconnectiontocircuitsinwhich

measuresaretakentolimitthetransientover‐voltagestoanappropriatelowlevel.Examples

includeprotectedelectroniccircuits.

OVERVOLTAGECATEGORYII

EquipmentofOVERVOLTAGECATEGORYIIisenergy‐consumingequipmenttobesuppliedfrom

thefixedinstallation.Examplesincludehousehold,office,andlaboratoryappliances.

OVERVOLTAGECATEGORYIII

EquipmentofOVERVOLTAGECATEGORYIIIisequipmentinfixedinstallations.

Note–Examplesincludeswitchesinthefixedinstallationandsomeequipmentforindustrialuse

withpermanentconnectiontothefixedinstallation.

OVERVOLTAGECATEGORYIV

EquipmentofOVERVOLTAGECATEGORYIVisforuseattheoriginoftheinstallation.Examples

includeelectricitymetersandprimaryover‐currentprotectionequipment.

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CAUTIONS

Improperuseofthismetercancausedamage,shock,injuryordeath.Readand

understandthisusermanualbeforeoperatingthemeter.

Alwaysremovethetestleadsbeforereplacingthebatteryorfuses.

Inspecttheconditionofthetestleadsandthemeteritselfforanydamagebefore

operatingthemeter.

Usegreatcarewhenmakingmeasurementsifthevoltagesaregreaterthan25VAC

rmsor35VDC.Thesevoltagesareconsideredashockhazard.

Warning!ThisisaclassAequipment.Thisequipmentcancauseinterferencein

residentialareas;inthesecasestheoperatormayberequiredtotakestepsto

avoidorminimizetheinterference.

Alwaysdischargecapacitorsandremovepowerfromthedeviceundertestbefore

performingDiode,Resistance,orContinuitytests.

Voltagechecksonelectricaloutletscanbedifficultandmisleadingbecauseofthe

uncertaintyofconnectiontotherecessedelectricalcontacts.Othermeansshould

beusedtoensurethattheterminalsarenot"live".

Iftheequipmentisusedinamannernotspecifiedbythemanufacturer,the

protectionprovidedbytheequipmentmaybeimpaired.

Thisdeviceisnotatoyandmustnotreachchildren’shands.Itcontainshazardous

objectsaswellassmallpartsthatthechildrencouldswallow.

Donotleavebatteriesandpackingmaterialunattended;theycanbedangerousin

thehandsofchildren.

Intheeventthatthedeviceisgoingtobeunusedforanextendedperiodoftime,

removethebatteries.

Expiredordamagedbatteriescancausecauterizationoncontactwiththeskin.

Always,therefore,usesuitableglovesinsuchcases.

Ensurethatthebatteriesarenotshort‐circuited.Neverincineratebatteries.

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SAFETYINSTRUCTIONS–INPUTPROTECTIONLIMITS

Thismeterhasbeendesignedforsafeuse,butmustbeoperatedwithcaution.The

ruleslistedinthissafetysectionmustbecarefullyfollowedforsafeoperation.

1. NEVERapplyvoltageorcurrenttothemeterthatexceedsthespecifiedmaximum:

InputProtectionLimits

FunctionMaximumInput

VDCorVAC1000VDC/ACrms

mAAC/DC800mA1000Vfastactingfuse

AAC/DC10A1000Vfastactingfuse

Frequency,Resistance,

Capacitance,DutyCycle,Diode

Test,Continuity

1000VDC/ACrms

Temperature1000VDC/ACrms

2. USEEXTREMECAUTIONwhenworkingwithhighvoltages.

3. DONOTmeasurevoltageifthevoltageonthe"COM"inputjackexceeds1000V

aboveearthground.

4. NEVERconnectthemeterleadsacrossavoltagesourcewhilethefunctionswitchis

inthecurrent,resistance,ordiodemode.Doingsocandamagethemeter.

5. ALWAYSdischargefiltercapacitorsinpowersuppliesanddisconnectthepower

whenmakingresistanceordiodetests.

6. ALWAYSturnoffthepoweranddisconnectthetestleadsbeforeopeningthecovers

toreplacethefuseorbatteries.

7. NEVERoperatethemeterunlessthebackcoverandthebatteryandfusecoversare

inplaceandfastenedsecurely.

8. Iftheequipmentisusedinamannernotspecifiedbythemanufacturer,the

protectionprovidedbytheequipmentmaybeimpaired.

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FCCCOMPLIANCE

Thisdevicecomplieswithpart15oftheFCCRules.Operationissubjecttothefollowing

twoconditions:



1.Thisdevicemaynotcauseharmfulinterference.

2.Thisdevicemustacceptanyinterferencereceived,includinginterferencethatmay

causeundesiredoperation.



ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigital

device,pursuanttopart15oftheFCCRules.Theselimitsaredesignedtoprovide

reasonableprotectionagainstharmfulinterferenceinaresidentialinstallation.This

equipmentgenerates,uses,andcanradiateradiofrequencyenergyand,ifnotinstalled

andusedinaccordancewiththeinstructions,maycauseharmfulinterferencetoradio

communications.However,thereisnoguaranteethatinterferencewillnotoccurina

particularinstallation.



Ifthisequipmentdoescauseharmfulinterferencetoradioortelevisionreception,which

canbedeterminedbyturningtheequipmentoffandon,theuserisencouragedtotryto

correcttheinterferencebyoneormoreofthefollowingmeasures:



•Reorientorrelocatethereceivingantenna.

•Increasetheseparationbetweentheequipmentandreceiver.

•Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthe

receiverisconnected.

•Consultthedealeroranexperiencedradio/TVtechnicianforhelp.



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DESCRIPTIONS

METERDESCRIPTION

1. LCDdisplay

2. Sub‐functionkeysF1,F2,F3,andF4

3. DataHOLDbutton

4. MAX‐MINmemorybutton

5. RotaryPrimaryFunctionSelectSwitch

6. InputjackforAmperes(A)

7. InputjackmA,uA(milli‐&micro‐Amperes)

8. Inputjack(COM)negative

9. Inputjack(positive)forallfunctions

10. DisplayBacklightcontrol

11. Informationbutton

12. NavigationarrowkeysandOKconfirmationbutton

Note:Batterycompartmentandtiltstandarelocatedontherearoftheinstrument

INPUTTERMINALDESCRIPTION

Allfunctions,exceptingcurrent,usetheVandCOMinputterminals.Separate

terminalsareprovidedforcurrentabove500mAandforcurrentbelow500mA.

Input for 0 A to 10.00 A current

Input for 0 A to 500 mA current measurements

Return terminal for all measurements

Input for voltage, continuity, resistance, diode

test, conductance, capacitance

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