Extech Instruments EX360 User manual

USERMANUAL
TrueRMSDigitalMultimeters
EX360Series

EX360TrueRMSDigitalMultimeter
EX363TrueRMSDMMwithTemperatureandµAAC/DC
EX365TrueRMSDMMwith10AAC/DCCurrent



AdditionalUserManualTranslationsavailableatwww.extech.com

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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.

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.

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.

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.

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.

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

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

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

Fig3‐1METERDESCRIPTION
1
2
3
4
5
6
7
8
9
10
11
12
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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)

Fig3‐2METERDISPLAY
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Push‐ButtonDescriptions

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.

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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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DC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. MovetheFunctionSwitchtotheor
m
position.
3. ReadtheWarningandCautionstatementsatthebeginningofthissectiontodetermine
whetherornottousethetestleadprobecovers.
4. Touchthetestprobetipstothecircuitundertest.Besuretoobservethecorrectpolarity
(redleadtopositive,blackleadtonegative).
5. 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.
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.Ifthepolarityisreversed,thedisplaywillshow(‐)minusbeforethe
value.
7. Notethevoltagealertsymbol whenvoltageispresent.
8. ThemeteriscapableofdetectingDCvoltagesto1000V.

Fig4‐2DCVOLTAGEMEASUREMENTS


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LoZVoltageMeasurements
WhenthefunctionswitchisturnedtotheLoZ position,themeterincorporatesan
automaticvoltagedetectioncircuittoautomaticallydeterminevoltageACorDCandalowZ
(impedance)circuit*thateliminatesghostvoltagecomplications.RefertotheVoltage
MeasurementssectionearlierinthisguideforSafetyinformationandconnectiondiagrams.
*TheLoZimpedanceisapprox.3kΩincreasingtoover100kΩwhenmeasuring1000V.
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. MovetheFunctionSwitchtotheLoZposition.
3. Touchthetestprobetipstothecircuitundertest.Besuretoobservethecorrectpolarity
(redleadtopositive,blackleadtonegative).
4. ThemeterdefaultstotheAutoRangemode(AutodisplayedonLCD).Manualrange
cannotbeusedinthismode.
5. 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.Ifthepolarityisreversed,thedisplaywillshow(‐)minusbeforethe
value.
6. ThemeteriscapableofdetectingAC/DCvoltagesto1000V.
7. Notethevoltagealertsymbol whenvoltageispresent.

PEAKMAX‐MINHOLDMode(AConly)
InthePEAKHOLDmodethemeterrecordsMAXandMINmeasurementvalues.Whenthe
measurementexceedsarecordedMAXorMINvalue,themeterreplacestheexistingvalue
withthenewervalue.
1. PressandholdthePEAKbuttonforatleasttwoseconds.PEAKMAXMINwillbedisplayed
andthemeterwillbeginrecordingMAXandMINvalues.
2. AshortpressofthePEAKbuttonwillshowtheMAXrecordedreading.
3. AnothershortpressofthePEAKbuttonwillshowtheMINrecordedreading.
4. PressthePEAKbuttonagaintoviewrealtimereadingswhileMAXMINrecording
continuesinthebackground.
5. TopauseMAXMINrecording,presstheHbutton.ThedisplaywillfreezeandtheHOLD
iconwillappear.PressHagaintoreturntorealtimereadings(withMAXMINrecording
continuinginthebackground)
6. ToexitthePEAKHOLDMAXMINmode,pressandholdthePEAKbuttonfor>2seconds.
ThemeterwillreturntonormaloperationandthePEAKMAXMINiconswillswitchOFF.

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10AAC/DCCurrentMeasurements(EX365only)
WARNING:Donothandlethetestleadsabovethefinger/handguardbarrier.
CAUTION:ObserveCATIII1000VCATIV600VwithrespecttoEarthGround.
1. InserttheblacktestleadintotheCOMterminalandtheredtestleadintotheAterminal.
2. Turnthemeter’sfunctionswitchtotheorposition.TheAsymbolwillappearonthe
displayindicatingAmperes(Amps).
3. ThemeterdefaultstotheAutoRangemode.WheninAutomode,thedisplayshowstheAuto
iconintheupperleftcorner.UsetheRbuttontomanuallyrangethemeter.Pressandhold
theRbuttontoreturntotheAutoRangemode.
4. ThemeterdisplaywillshowACorDCdependingonthefunctionswitchposition.
5. Currentmeasurementsmustbetakeninserieswiththecircuitundertest.Seeaccompanying
diagram.
6. Touchtheblacktestleadtothenegativesideofthecircuitandtheredtestleadtothe
positivesideofthecircuit.
7. Readthecurrentmeasurementinthedisplayrepresentedbynumericaldigitsandbargraph.
Thedisplaywillindicatetheproperdecimalpointandvalue.InDC,Ifthepolarityisreversed,
thedisplaywillshow(‐)minusbeforethevalue.
8. UsetheMbuttontoviewthefrequency(Hz)ofthemeasuredcurrent.

Fig4‐3AC/DC10ACURRENTMEASUREMENTS

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µAAC/DCCurrentMeasurements(EX363only)
WARNING:Donothandlethetestleadsabovethefinger/handguardbarrier.
CAUTION:ObserveCATIII1000VandCATIV600VwithrespecttoEarthGround.
1. InserttheblacktestleadintotheCOMterminalandtheredtestleadintotheµAterminal.
2. Turnthemeter’sfunctionswitchtotheµAposition.TheµAunitssymbolwillappearonthe
displayindicatingthatmicro‐amperesarebeingmeasured.
3. ThemeterdefaultstotheManualRangemode.Autorangecannotbeusedinthismode.
4. ThemeterdisplaywillshowACorDCdependingonthefunctionswitchposition.
5. Currentmeasurementsmustbetakeninserieswiththecircuitundertest.Seeaccompanying
diagram.
6. Touchtheblacktestleadtothenegativesideofthecircuitandtheredtestleadtothe
positivesideofthecircuit.
7. Readthecurrentmeasurementinthedisplayrepresentedbythenumericaldigitsandthebar
graph.Thedisplaywillindicatetheproperdecimalpointandvalue.InDC,Ifthepolarityis
reversed,thedisplaywillshow(‐)minusbeforethevalue.

Fig4‐4µAAC/DCCURRENTMEASUREMENTS

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Non‐ContactVoltageDetector
WARNING:Itispossibleforvoltagetobepresentinacircuitevenifthemeterdoesnot
beeporlighttheNCVLEDlampatthetopofthemeter.Alwaysverifymeteroperationona
knownliveACcurrentcircuitandverifythatthebatteriesarefreshbeforeuse.
TheaudiblebeepersoundsandtheLEDlampatthetopofthemeterlightswhenthemeter
sensesanelectricalvoltagefield.
IfthemeterdoesnotemitatoneorlighttheLEDinthismode,thereisstillthepossibilitythat
voltageispresent.Pleaseusecaution.
1. TurnthefunctionswitchtotheNCVpositiontoaccesstheNon‐ContactVoltageDetect
mode.
2. UsetheLo/Hibuttontoselectlowsensitivity(160to1000V)orhighsensitivity(80to
1000V).ThedisplaywillshowLoforlowsensitivityorHiforhighsensitivitymode.
3. Notethevoltagedetectiondisplayicon onthedisplaywheninthismode.
4. Totest,placethemeternearasourceofelectricalenergy.Notethatthetipofthemeter
offersthehighestsensitivity.
5. NotetheaudibletoneandtheLEDlightwhenasourceofelectricalenergyisdetected.


Fig4‐5NON‐CONTACTVOLTAGEDETECTOR


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ResistanceMeasurements
Cautions:SwitchOFFpowertothedeviceundertestbeforemeasuring.Donottestoncircuits
ordeviceswhere60VDCor30VACispresent.
1. Inserttheblacktestleadbananaplugintothenegative(COM)jack.Inserttheredtest
leadbananaplugintothepositive(V/Ω)jack.
2. TurntheFunctionSwitchtotheΩposition.
3. UsetheMbuttontoselecttheΩicononthedisplayindicatingresistanceonly(without
theaudiblecontinuityiconshowing).
4. Touchthetestprobetipsacrossthecircuitorpartundertest.Itisbesttodisconnectone
sideofthepartundertestsotherestofthecircuitwillnotinterferewiththeresistance
reading.
5. Readtheresistancevalueinthedisplay.Thedisplaywillindicatetheproperdecimal
pointandvalue.Ifthereadingisoutofrange,theOLdisplayiconwillappear.

Fig4‐6RESISTANCE/CONTINUITYMEASUREMENTS

ContinuityMeasurements
1. InserttheblacktestleadintothenegativeCOMterminalandtheredtestleadintothe
positiveterminal.
2. Setthefunctionswitchtothe position.
3. UsetheMbuttontoselecttheContinuitymode.LookfortheContinuityicononthe
display.
4. Touchthetestprobetipsacrossthewireorcircuitundertest.
5. Iftheresistanceis<20Ω,thebeeperwillsoundandtheLEDlampatthetopofthemeter
willflash.ThebeeperandLEDlampwillswitchoffifthemeasuredsignalrisesabove
approximately200Ω.ForanopencircuitconditionthemeterwilldisplayOL.

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CapacitanceMeasurements
WARNING:Toavoidelectricshock,removepowertothecircuitundertestanddischargethe
capacitorundertestbeforemeasuring.Donottestoncircuitsordeviceswhere60VDCor
30VACispresent.
1. Setthefunctionswitchtothecapacitanceposition.
2. InserttheblacktestleadbananaplugintothenegativeCOMjack
andtheredtestleadbananaplugintothepositive jack.
3. PresstheMbuttontoselecttheunitofmeasuresymbolF.
4. Touchthetestprobetipsacrossthepartundertest.
5. UsetheRelativemodetocomparemeasurementstoasaved,knowncapacitancevalue.
SeenextsectionforRelativemodeinstructions.
6. Readthecapacitancevalueinthedisplay.
7. Thedisplaywillindicatetheproperdecimalpointandvalue.
Note:Forlargevaluesofcapacitanceseveralsecondsmayberequiredbeforethereading
stabilizes.

Fig4‐7CAPACITANCEMEASUREMENTS
RelativeMode
InRelativemodeareferencereadingcanbestoredwithwhichtocomparesubsequentreadings.
Pressthe buttontostorethedisplayedreadinginmemory,thisbecomesthereference.The
symbolwillbedisplayedwhentheRelativemodeisactive.Subsequentreadingswillnowbe
comparedtothestoredreference(DisplayedReading=MeasurementminusReference).Pressthe
buttonagaintoexittheRelativemode;theRelativesymbolwillswitchoff.
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DiodeTest
1. InserttheblacktestleadbananaplugintothenegativeCOMjackandtheredtest
leadbananaplugintothepositivejack.
2. Turnthefunctionswitchtoposition.UsetheMbuttontoselectthediodefunctionif
necessary(thediodeandvoltagesymbolswillappearontheLCDwheninDiodetestmode).
3. Touchthetestprobetipstothediodeorsemiconductorjunctionundertest.Notethe
meterreading.
4. Reversethetestleadpolaritybyreversingtheredandblackleads.Notethisreading.
5. Thediodeorjunctioncanbeevaluatedasfollows:
Ifonereadingdisplaysavalue(typically0.400Vto0.900V)andreversereadingdisplays
OL,thediodeisgood.
IfbothreadingsdisplayOLthedeviceisopen.
Ifbothreadingsareverysmallor‘0’,thedeviceisshorted.

Fig4‐8DIODETESTING
1
2
2
11
2
1
2

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TemperatureMeasurements(EX363only)
1. InsertthesuppliedtemperatureprobedintotheCOMandpositiveterminalsobserving
correctpolarity.
2. Turnthefunctionswitchtothetemperatureposition.UsetheoC/oFbuttontoselectthe
desiredunitofmeasure.
3. Touchthetemperatureprobetiptothedeviceundertestorleavethetemperatureprobe
intheopenairtomeasureambienttemperature.
4. ReadthetemperaturemeasurementontheLCD.
5. Tosetthecurrentlyselectedunitofmeasureasdefault,pressandholdthebacklightbutton
whileturningthemeterON.
TEMP

Fig4‐9TEMPERATUREMEASUREMENTS
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5. Maintenance
WARNING:Toavoidelectricalshock,removethetestleads,disconnectthemeterfrom
anycircuitandturnOFFthemeterbeforeopeningthecase.Donotoperatewithanopencase.
BatteryReplacement
1. Removethetestleadsfromthemeter.
2. Removethemeter’sprotectivecover.
3. RemovethetwoPhillipsheadscrewsthat
securethebatterycompartmentatthe
backofthemeter.
4. Openthebatterycompartmentandreplace
the9Vbatteryobservingcorrectpolarity.
Re‐assemblethemeterbeforeuse
Safety:Pleasedisposeofbatteriesresponsibly;
neverdisposeofbatteriesinafire,batteries
mayexplodeorleak.Ifthemeterisnottobe
usedfor60daysormore,removethebattery
andstoreseparately.







Fig5‐1BATTERYREPLACEMENT



Neverdisposeofusedbatteriesorrechargeablebatteriesinhouseholdwaste.
Asconsumers,usersarelegallyrequiredtotakeusedbatteriestoappropriatecollection
sites,theretailstorewherethebatterieswerepurchased,orwhereverbatteriesaresold.
Disposal:Donotdisposeofthisinstrumentinhouseholdwaste.Theuserisobligatedtotakeend‐of‐
lifedevicestoadesignatedcollectionpointforthedisposalofelectricalandelectronicequipment.
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