Extech Instruments GX930 Manuale utente

USERGUIDE

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MODELGX900–GRAPHICALDMM

MODELGX930–DMM/DIGITALOSCILLOSCOPE

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INTRODUCTION

ThankyouforselectingtheExtechModelGX900TrueRMSDigitalMultimeteror

GX930TrueRMSDigitalMultimeterwithDigitalOscilloscope.Thesedevicesare

shippedfullytestedandcalibratedand,withproperuse,willprovideyearsof

reliableservice.ExtechInstrumentsisanISO‐9001certifiedcompany.

GX900‐KEYFEATURES

TheGX900measuresAC/DCVoltage/Current(includingremoteClamp

current),Resistance,Capacitance,Frequency(electricalandelectronic),

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

TheGX930DMMmeasuresAC/DCVoltage/Current(includingremote

Clampcurrent),Resistance,Capacitance,Frequency(electricaland

electronic),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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GX930‐KEYFEATURES

MeasuresAC/DCVoltage/Current,Resistance,Capacitance,Frequency

(electricalandelectronic),DutyCycle,Diode,Insulation,Continuity,and

ThermocoupleTemperature

Newdesign,compactsize/portable

TFTcolorLCDwithclearandstablewaveformdisplay

Realtimesamplerate:500—50Msamples/second

Internalmemorystorage:3000datapoints

Triggerfunction:Risingedge,Fallingedge

Automaticsearchutility

10setsofwaveformstorage/output;waveformdatacanbe

transmittedviaBluetooth

USBPCinterface

Cursorbasedoperation

Multi‐screendisplayforchannelwaveformandFFTwaveform

SimpleMenunavigation

On‐screenHelputility

Includes1:1probewithadaptorandbatterycharger

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TABLEOFCONTENTS

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

GX900‐KEYFEATURES.....................................................................................2

GX930‐KEYFEATURES.....................................................................................3

TABLEOFCONTENTS........................................................................................4

SAFETY..............................................................................................................7

INTERNATIONALSAFETYSYMBOLS..................................................................7

IEC1010OVERVOLTAGEINSTALLATIONCATEGORIES......................................7

CAUTIONS.........................................................................................................8

SAFETYINSTRUCTIONS–INPUTPROTECTIONLIMITS......................................9

FCCCOMPLIANCE...........................................................................................10

INDUSTRYCANADA(IC)COMPLIANCE...........................................................11

DIGITALMULTIMETERINSTRUCTIONS.............................................................12

DESCRIPTIONS................................................................................................12

METERDESCRIPTION......................................................................................12

INPUTTERMINALDESCRIPTION.....................................................................12

KEYPADDESCRIPTION.....................................................................................13

LCDDISPLAYDESCRIPTION.............................................................................14

QUICKSTARTGUIDE.......................................................................................15

MEASUREMENTS............................................................................................16

DCVOLTAGEMEASUREMENTS.......................................................................16

ACVOLTAGEMEASUREMENTS.......................................................................17

dBm/dBVACMEASUREMENTS.......................................................................17

LOWPASSFILTERFORACVMEASUREMENTS................................................18

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DC/ACMILLIVOLTMEASUREMENTS..............................................................18

CURRENTCLAMPMEASUREMENTS...............................................................19

DCCURRENTMEASUREMENTS......................................................................20

ACCURRENTMEASUREMENTS......................................................................21

RESISTANCEMEASUREMENTS........................................................................22

CONTINUITYCHECK........................................................................................23

DIODETEST.....................................................................................................23

TEMPERATUREMEASUREMENTS...................................................................24

CAPACITANCEMEASUREMENTS....................................................................25

FREQUENCY,DUTYCYCLE,PULSEWIDTH,andPERIODMEASUREMENTS

(ELECTRONIC).................................................................................................25

RPMMEASUREMENTS...................................................................................26

COUNTERMEASUREMENTS...........................................................................26

FUNCTIONSANDFEATURES............................................................................27

FUNCTIONMENUBASICS...............................................................................27

THE‘HELP’UTILITY.........................................................................................27

AUTOMATICANDMANUALRANGING...........................................................28

ACANDDCSIGNALS.......................................................................................28

MINIMUM(MIN)ANDMAXIMUM(MAX)READINGS....................................29

CAPTURINGPEAKVALUES..............................................................................30

RELATIVEMODE.............................................................................................30

DATAHOLDANDAUTO‐HOLDMODE............................................................31

STORINGINDIVIDUALSCREEN‐SHOTS.............................................................31

VIEWINGMEMORYDATA...............................................................................31

VIEWTRENDDATA.........................................................................................32

RECORDINGMEASUREMENTS(DATALOGGING)..............................................33

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ZOOMINGONTRENDDATA...........................................................................34

METERSETUPOPTIONS...................................................................................34

RESETTHEMETERSETUPOPTIONS................................................................34

METERINFORMATIONSCREEN......................................................................35

SETTINGTHEEVENTTHRESHOLDVALUE.......................................................35

CHANGECALIBRATIONPASSWORD.................................................................35

CALIBRATIONACCESS.....................................................................................36

BLUETOOTHTMCAPABILITY..............................................................................36

GX900SOFTWARE...........................................................................................36

SETTINGTHEDATEANDTIME.........................................................................37

AUTOMATICPOWEROFF................................................................................37

TIMEANDDATEFORMATS..............................................................................38

NUMERICFORMAT.........................................................................................38

LANGAUGEFORMAT.......................................................................................38

DIGITALOSCILLOSCOPEINSTRUCTIONS...........................................................39

MAINOSCILLOSCOPEDISPLAYDESCRIPTION.................................................39

OSCILLOSCOPEFUNCTIONTEST.....................................................................40

OSCILLOSCOPEPROBEANDCONNECTOR......................................................40

BATTERYANDFUSEREPLACEMENT.................................................................41

BATTERYREPLACEMENT................................................................................41

FUSEREPLACEMENT.......................................................................................41

SPECIFICATIONS..............................................................................................42

GENERALSPECIFICATIONS..............................................................................42

ELECTRICALSPECIFICATIONS..........................................................................43

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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.

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

hazardousvoltagesmaybepresent

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Doubleinsulation

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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

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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(20Afor30

secondsmaxevery15minutes)

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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.

FCCRadiationExposureStatement

1. Thistransmittermustnotbeco‐locatedoroperatinginconjunctionwithanyotherantenna

ortransmitter.

2. This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled

environment.

3. To maintain compliance with FCC RF exposure compliance requirements, avoid direct contact

to the transmitting antenna during transmission.

WARNING:Changesormodificationsnotexpresslyapprovedbythepartyresponsiblefor

compliancecouldvoidtheuser'sauthoritytooperatetheequipment.

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