Extech Instruments EX360 Manuale utente

USERMANUAL

TrueRMSDigitalMultimeters

EX360Series

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EX360TrueRMSDigitalMultimeter

EX363TrueRMSDMMwithTemperatureandµAAC/DC

EX365TrueRMSDMMwith10AAC/DCCurrent

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AdditionalUserManualTranslationsavailableatwww.extech.com

EX36x‐en‐GB_V1.61/17

TableofContents

1.INTRODUCTION3

2.SAFETYINFORMATION4

3.DESCRIPTIONS6

4.OPERATION9

PoweringtheMeter9

DisableAutoPowerOFF9

DisplayBacklight9

SmartDataHold9

TestLeadConsiderations9

VoltageMeasurements10

LoZVoltageMeasurements12

PEAKMAX‐MINHOLDMode(AConly)12

10AAC/DCCurrentMeasurements(EX365only)13

µAAC/DCCurrentMeasurements(EX363only)14

Non‐ContactVoltageDetector15

ResistanceMeasurements16

ContinuityMeasurements16

CapacitanceMeasurements17

RelativeMode17

DiodeTest18

TemperatureMeasurements(EX363only)19

5.MAINTENANCE20

6.SPECIFICATIONS22

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1. Introduction

ThankyouforselectingtheExtechEX360SeriesMeter.

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TheEX360Seriesarefeature‐packedTrueRMSdigitalmultimeters.InadditiontostandardDMM

features,theyofferaLowImpedance(LoZ)mode,SmartDataHold,AutomaticAC/DCvoltage

Detectmode,BacklitLCD,andaNon‐ContactVoltageDetectorthatsenseselectricalsources

safely.

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

reliableservice.Pleasevisitourwebsite(www.extech.com)tocheckforthelatestversionofthis

UserGuide,ProductUpdates,ProductRegistration,andCustomerSupport.

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Features

6000countdigitaldisplayand60segmentanalogbargraphdisplay

LargebacklitLEDdisplay

TrueRMSACVmeasurements

LoZmode(withAutoAC/DCVoltagedetect)protectsreadingsfromghostvoltages

AutoandManualRangemodes

0.5%DCVaccuracy

SmartDataHold

PeakHold

Relativemode

AutoPowerOFF(APO)withdisablefunction

Temperaturemeasurements(ModelEX363only)withincludedtemperatureprobe

AC/DCµAfunction(ModelEX363only)

10AAC/DCcurrentmeasurementswith11A/1000Vhighenergyfuse(EX365only)

Non‐ContactVoltageDetector

Visualandaudiblecontinuitymeasurementalert

Segmentedlowbatteryindicator

Includesholsterwithprobeholder,tiltstand,typeKtemperatureprobe(EX363),magnetic

hanger,and9Vbattery.

CATIV600V/CATIII1000V

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2. SafetyInformation

Toensurethesafeoperationandserviceofthemeter,followtheseinstructionsclosely.Failureto

observewarningscanresultinsevereinjury.

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WARNINGS

WARNINGSidentifyhazardousconditionsandactionsthatcouldcauseBODILYHARMorDEATH.

Whenhandlingtestleadsorprobes,keephandsandfingersbehindthefingerguardsatalltimes.

Removetestleadsfromthemeterbeforeopeningthebatterycompartmentormeterhousing.

UsethemeteronlyasspecifiedinthisUserGuideoraccompanyingQuickStarttoavoidcompromising

theprotectionsprovidedbythemeter.

Besuretousetheproperterminals,switchpositions,andrangeswhentakingmeasurements.

Verifythemeter’soperationbymeasuringaknownvoltage.Havethemeterservicedifthemeter

respondsunusuallyoriftherearequestionsregardingthemeter’sfunctionalintegrity.

Donotapplymorethantheratedvoltage,asmarkedonthemeter,betweenterminalsorbetweenany

terminalandearthground.

ReplaceblownfuseswithfusesofthesametypeandratingasspecifiedinthisUserGuide.

Usecautionworkingwithvoltagesabove30VACRMS,42VACpeak,or60VDC.Thesevoltagesposea

shockhazard.

Toavoidmisleadingreadingsthatcouldleadtoelectricshockandinjury,replacethebatteriesassoonas

thelowbatteryindicatorisdisplayed.

Disconnectpowertothecircuitundertestanddischargeallhigh‐voltagecapacitorsbeforetesting

resistance,continuity,diodes,orcapacitance.

Donotusethemeterinthepresenceofexplosivegasorvapor.

Toreduceriskoffireorelectricshock,donotusethemeterifitiswetanddonotexposethemeterto

moisture.

IndividualprotectiveequipmentshouldbeusedifHAZARDOUSLIVEpartsintheinstallationwhere

measurementsaretobecarriedoutcouldbeaccessible.

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CAUTIONS

CAUTIONSidentifyconditionsandactionsthatcouldcauseDAMAGEtothemeterorequipment

undertest.Donotexposethemetertoextremesintemperatureorhighhumidity.

Disconnectthetestleadsfromthetestpointsbeforechangingthepositionofthefunction(rotary)

switch.

Donotexposethemetertoextremesintemperatureortohighhumidity.

Neversetthemetertotheresistance,diode,capacitance,micro‐amp,orampfunctionswhen

measuringthevoltageofapowersupplycircuit;thiscouldresultinmeterdamageanddamagetothe

equipmentundertest.

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SafetySymbolsthataretypicallymarkedonmetersandinstructions

Thissymbol,adjacenttoanothersymbol,indicatestheusermustrefertothe

manualoruserguideforfurtherinformation.

Riskofelectricalshock

Fusesymbol

Equipmentprotectedbydoubleorreinforcedinsulation

Batterysymbol

ConformstoEUdirectives

Donotdiscardthisproductinhouseholdtrash.

ACmeasurement

DCmeasurement

Earthground

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UnsafeVoltageAlert

Whenthemeterdetectsavoltageequaltoorgreaterthan30Voravoltageoverload(OL)inV,mV,orLoZ

mode,thesymbolisdisplayed.Thissystemwasdesignedtoalerttheuserofapotentiallyhazardous

voltage.

PERIEC1010OVERVOLTAGEINSTALLATIONCATEGORY

OVERVOLTAGECATEGORYI

EquipmentofOVERVOLTAGECATEGORYIisequipmentforconnectiontocircuitsinwhichmeasuresare

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

Note–Examplesincludeprotectedelectroniccircuits.

OVERVOLTAGECATEGORYII

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

installation.

Note–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.

Note–Examplesincludeelectricitymetersandprimaryover‐currentprotectionequipment

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3. Descriptions

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MeterDescription(EX365pictured)

1. Non‐ContactVoltageDetectorandContinuityalertlight

2. LCDmulti‐functiondisplay

3. M(MODE)button(alsooC/oFbuttononEX363)

4. RRANGEandLo/Hibutton

5. Rotaryfunctionselectswitch

6. Positiveinputterminal(10ACurrent)forEX365only

7. Common(‐)inputterminal

8. Positiveinputterminal:Voltage,Resistance,Capacitance,Temperature(EX363),andµA

(EX363)

9. LCDBacklightbutton

10. HDataHoldbutton

11. PEAKMAX‐MIN/REL(RELATIVE)button

12. Batterycompartmentonbackofmeter

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Fig3‐1METERDESCRIPTION

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DisplayIconDescriptions

AutoVolts:AutomaticAC/DCvoltagedetect(forLoZmodeonly) 

Auto: Automatic range mode

HOLD:Displayhold

LoZ:LowImpedancemode

:Relativemode

andAC:AlternatingCurrentMeasurements

andDC:DirectCurrentMeasurements

:Maindisplaydigits

:Bargraph

A:Amperes(Current)

V:Volts(Voltage)

oC/oF:Temperatureunits

F:Farads(Capacitancemeasurementunits)

Hz:Hertz(Frequencymeasurementsunit)

Ω(Ohms):Resistancemeasurementunit

:Batterystatusicon

‐Minus(negative)sign

:Non‐ContactVoltDetectandhighvoltageicon

PEAKMAX‐MINPeakMaximumandMinimumreadingmemory

:Diodemeasurementmode

:Continuitymodesymbol

Prefixes:µ(micro:10‐6),m(milli:10‐3),n(nano:10‐9),k(kilo:103),M(mega:106)

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Fig3‐2METERDISPLAY

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Push‐ButtonDescriptions

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Press the M(MODE) button to perform the following. The oC/oFfunction is only

available on the EX363 model:

SwitchPositionMODE(M)ButtonFunction

V Hz

(EX365)A Hz

ΩΩ  



µA(EX363)ACDC

TEMP(EX363)oC oF

Press R(Range) to switch from Auto to Manual Range. Hold to return to Auto Range.

Press to select Non-Contact Voltage Detector Sensitivity Lo (low) or Hi (high).

Short press activates Relative mode; long press access/exit PEAK MAX-MIN mode.

Press to turn Smart Data Hold ON or OFF.

Press to turn the LCD backlight ON or OFF

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4. Operation

CAUTION:ReadandunderstandalloftheSafetystatementslistedinthesafetysection

ofthismanualpriortouse.

PoweringtheMeter

1. Turntherotaryfunctionswitchtoanypositiontopowerthemeter.Checkthebatteriesifthe

unitfailstopowerON.RefertotheMaintenancesectionforbatteryandfusereplacements.

2. TurnthefunctionswitchtotheOFFpositiontopowerOFFthemeter.

3. ThemeterhasanAutoPowerOFFfeature(APO)wherethemeterswitchesOFFafter20

minutesofinactivity.WhenAPOisenabled,theAPOiconwillshowonthedisplaywhenthe

meterispoweredON.TodisableAPO,refertothenextsection.

Note:Themeterdisplaysthebatterycapacitywhenpoweringup.Thedisplaywilleithershowthe

wordFULL(batteryfullycharged)orapercentagerepresentingremainingbatterypower.The

internationalsegmentedbatterystrengthsymbolisalsoshownonthedisplayatalltimeswhen

themeterisONandwhenthereissufficientbatterypowertopowerthemeter.

DisableAutoPowerOFF

ThemeterwillautopowerOFFafter20minutesofinactivity.Todefeatthisfeature,followthe

stepsbelow.

1. WiththemeterOFF,pressandholdtheM(MODE)buttonand,whilecontinuingtohold,turn

therotaryfunctionswitchtoanypositiontopowerONthemeter.

2. ThedisplaywillshowAOFF.

3. Releasethebutton.

4. APOwillnowbedisableduntilthenextcycleofpower.

DisplayBacklight

WiththemeterpoweredON,pressthebacklightbuttontoswitchthebacklightONorOFF.Note

thatexcessiveuseofthebacklightwillshortenthebatterylife.

SmartDataHold

TofreezetheLCDmeterreading,presstheH(HOLD)button.Whiledataholdisactive,theHOLD

displayiconappearsontheLCD.PresstheHbuttontoreturntonormaloperation.TheHOLDicon

willswitchOFF.

Themeter’sbeeperwillsoundandtheLCDwillflashifthedetectedsignalis50countsgreaterthan

theheldreading.

TestLeadConsiderations

TestleadprobecoverscanberemovedforCATII1000Vinstallations.Usethetestleadprobe

coversforCATIII1000VorCATIV600Vinstallations.Donotmeasurevoltages>1000VACorDC.

Removethestoragecapsfromthemeterendoftestleadsbeforeconnectingleadstothemeter.

EX36x‐en‐GB_V1.61/17

VoltageMeasurements

WARNING:RemovethetestleadprobecoversforCATII1000Vinstallations.Usethetest

leadprobecoversforCATIII1000VorCATIV600Vinstallations.Donotmeasurevoltages

greaterthan1000V.

CAUTION:Whenconnectingthetestleadstothecircuitordeviceundertest,connectthe

blackleadbeforethered;whenremovingthetestleads,removetheredbeforetheblacklead.

ACVoltageMeasurements

1. Inserttheblacktestleadbananaplugintothenegative(COM)jackandtheredtestlead

bananaplugintothepositive(V/Ω)jack.

2. Turnthefunctionswitchtotheposition.

3. ThemeterdefaultstotheAutoRangemode(AutodisplayedonLCD).PresstheRbuttonto

accessthemanualrangemode.PressandholdtheRbuttontoreturntotheAutoRange

mode(Autowillbedisplayed).

4. ReadtheWarningandCautionstatementsabovetodeterminewhetherornottousethe

testleadprobecovers.

5. Touchthetestprobetipstothecircuitundertest.

6. Readthedigitalvalueandthebargraphrepresentationofthemeasurementinthedisplay.

Thedisplaywillalsoindicatetheproperdecimalpointandmeasurementtype/unitssymbols.

7. Notethevoltagealertsymbol whenvoltageispresent.

8. UsetheMbuttontoviewthefrequency(Hz)ofthemeasuredvoltage.



Fig4‐1ACVOLTAGEMEASUREMENTS

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