Extech Instruments EX363 User manual

Category
Measuring, testing & control
Type
User manual

This manual is also suitable for

USERMANUAL
TrueRMSDigitalMultimeters
EX360Series
EX360TrueRMSDigitalMultimeter
EX363TrueRMSDMMwithTemperatureandµAAC/DC
EX365TrueRMSDMMwith10AAC/DCCurrent
AdditionalUserManualTranslationsavailableatwww.extech.com
EX36xenGB_V1.61/17
2
TableofContents
1. INTRODUCTION 3
2. SAFETYINFORMATION 4
3. DESCRIPTIONS 6
4. OPERATION 9
PoweringtheMeter 9
DisableAutoPowerOFF 9
DisplayBacklight 9
SmartDataHold 9
TestLeadConsiderations 9
VoltageMeasurements 10
LoZVoltageMeasurements 12
PEAKMAXMINHOLDMode(AConly) 12
10AAC/DCCurrentMeasurements(EX365only) 13
µAAC/DCCurrentMeasurements(EX363only) 14
NonContactVoltageDetector 15
ResistanceMeasurements 16
ContinuityMeasurements 16
CapacitanceMeasurements 17
RelativeMode 17
DiodeTest 18
TemperatureMeasurements(EX363only) 19
5. MAINTENANCE 20
6. SPECIFICATIONS 22
EX36xenGB_V1.61/17
3
1. Introduction
ThankyouforselectingtheExtechEX360SeriesMeter.
TheEX360SeriesarefeaturepackedTrueRMSdigitalmultimeters.InadditiontostandardDMM
features,theyofferaLowImpedance(LoZ)mode,SmartDataHold,AutomaticAC/DCvoltage
Detectmode,BacklitLCD,andaNonContactVoltageDetectorthatsenseselectricalsources
safely.
Thisdeviceisshippedfullytestedandcalibratedand,withproperuse,willprovideyearsof
reliableservice.Pleasevisitourwebsite(www.extech.com)tocheckforthelatestversionofthis
UserGuide,ProductUpdates,ProductRegistration,andCustomerSupport.
Features
6000countdigitaldisplayand60segmentanalogbargraphdisplay
LargebacklitLEDdisplay
TrueRMSACVmeasurements
LoZmode(withAutoAC/DCVoltagedetect)protectsreadingsfromghostvoltages
AutoandManualRangemodes
0.5%DCVaccuracy
SmartDataHold
PeakHold
Relativemode
AutoPowerOFF(APO)withdisablefunction
Temperaturemeasurements(ModelEX363only)withincludedtemperatureprobe
AC/DCµAfunction(ModelEX363only)
10AAC/DCcurrentmeasurementswith11A/1000Vhighenergyfuse(EX365only)
NonContactVoltageDetector
Visualand
audiblecontinuitymeasurementalert
Segmentedlowbatteryindicator
Includesholsterwithprobeholder,tiltstand,typeKtemperatureprobe(EX363),magnetic
hanger,and9Vbattery.
CATIV600V/CATIII1000V
EX36xenGB_V1.61/17
4
2. SafetyInformation
Toensurethesafeoperationandserviceofthemeter,followtheseinstructionsclosely.Failureto
observewarningscanresultinsevereinjury.
WARNINGS
WARNINGSidentifyhazardousconditionsandactionsthatcouldcauseBODILYHARMorDEATH.
Whenhandlingtestleadsorprobes,keephandsandfingersbehindthefingerguardsatalltimes.
Removetestleadsfromthemeterbeforeopeningthebatterycompartmentormeterhousing.
UsethemeteronlyasspecifiedinthisUserGuideoraccompanyingQuickStarttoavoidcompromising
theprotectionsprovidedbythemeter.
Besuretousetheproperterminals,switchpositions,andrangeswhentakingmeasurements.
Verifythemeter’soperationbymeasuringaknownvoltage.Havethemeterservicedifthemeter
respondsunusuallyoriftherearequestionsregardingthemeter’sfunctionalintegrity.
Donotapplymorethantheratedvoltage,asmarkedonthemeter,betweenterminalsorbetweenany
terminalandearthground.
ReplaceblownfuseswithfusesofthesametypeandratingasspecifiedinthisUserGuide.
Usecautionworkingwithvoltagesabove30VACRMS,
42VACpeak,or60VDC.Thesevoltagesposea
shockhazard.
Toavoidmisleadingreadingsthatcouldleadtoelectricshockandinjury,replacethebatteriesassoonas
thelowbatteryindicatorisdisplayed.
Disconnectpowertothecircuitunde rtestanddischargeallhighvoltage
capacitorsbeforetesting
resistance,continuity,diodes,orcapacitance.
Donotusethemeterinthepresenceofexplosivegasorvapor.
Toreduceriskoffireorelectricshock,donotusethemeterifitiswetanddonotexposethemeterto
moisture.
Individualprotective
equipmentshouldbeusedifHAZARDOUSLIVEpartsintheinstallationwhere
measurementsaretobecarriedoutcouldbeaccessible.
CAUTIONS
CAUTIONSidentifyconditionsandactionsthatcouldcauseDAMAGEtothemeterorequipment
undertest.Donotexposethemetertoextremesintemperatureorhighhumidity.
Disconnectthetestleadsfromthetestpointsbeforechangingthepositionofthefunction(rotary)
switch.
Donotexposethemetertoextremesintemperatureortohighhumidity.
Neversetthemetertotheresistance,diode,capacitance,microamp,orampfunctionswhen
measuringthevoltage
ofapowersupplycircuit;thiscouldresultinmeterdamageanddamagetothe
equipmentundertest.
EX36xenGB_V1.61/17
5
SafetySymbolsthataretypicallymarkedonmetersandinstructions
Thissymbol,adjacenttoanothersymbol,indicatestheusermustrefertothe
manualoruserguideforfurtherinformation.
Riskofelectricalshock
Fusesymbol
Equipmentprotectedbydoubleorreinforcedinsulation
Batterysymbol
ConformstoEUdirectives
Donotdiscardthisproductinhouseholdtrash.
ACmeasurement
DCmeasurement
Earthground
UnsafeVoltageAlert
Whenthemeterdetectsavoltageequaltoorgreaterthan30Voravoltageoverload(OL)inV,mV,orLoZ
mode,thesymbol
isdisplayed.Thissystemwasdesignedtoalerttheuserofapotentiallyhazardous
voltage.
PERIEC1010OVERVOLTAGEINSTALLATIONCATEGORY
OVERVOLTAGECATEGORYI
EquipmentofOVERVOLTAGECATEGORYIisequipmentforconnectiontocircuitsinwhichmeasuresare
takentolimitthetransientovervoltagestoanappropriatelowlevel.
NoteExamplesincludeprotectedelectroniccircuits.
OVERVOLTAGECATEGORYII
EquipmentofOVERVOLTAGECATEGORYIIisenergyconsumingequipmentto
besuppliedfromthefixed
installation.
NoteExamplesincludehousehold,office,andlaboratoryappliances.
OVERVOLTAGECATEGORYIII
EquipmentofOVERVOLTAGECATEGORYIIIisequipmentinfixedinstallations.
NoteExamplesincludeswitchesinthefixedinstallationandsomeequipmentforindustrialusewith
permanentconnectiontothefixedinstallation.
OVERVOLTAGECATEGORYIV
EquipmentofOVERVOLTAGECATEGORYIVisforuseattheoriginoftheinstallation.
NoteExamplesincludeelectricitymetersandprimaryovercurrentprotectionequipment
EX36xenGB_V1.61/17
6
3. Descriptions
MeterDescription(EX365pictured)
1. NonContactVoltageDetectorandContinuityalertlight
2. LCDmultifunctiondisplay
3. M(MODE)button(also
o
C/
o
FbuttononEX363)
4. RRANGEandLo/Hibutton
5. Rotaryfunctionselectswitch
6. Positiveinputterminal(10ACurrent)forEX365only
7. Common()inputterminal
8. Positiveinputterminal:Voltage,Resistance,Capacitance,Temperature(EX363),andµA
(EX363)
9. LCDBacklightbutton
10. HDataHoldbutton
11. PEAKMAXMIN/
REL(RELATIVE)button
12. Batterycompartmentonbackofmeter
Fig31METERDESCRIPTION
1
2
3
4
5
6
7
8
9
10
11
12
EX36xenGB_V1.61/17
7
DisplayIconDescriptions
AutoVolts:AutomaticAC/DCvoltagedetect(forLoZmodeonly)
Auto: Automatic range mode
HOLD:Displayhold
LoZ:LowImpedancemode
:Relativemode
andAC:AlternatingCurrentMeasurements
andDC:DirectCurrentMeasurements
:Maindisplaydigits
:Bargraph
A:Amperes(Current)
V:Volts(Voltage)
o
C/
o
F:Temperatureunits
F:Farads(Capacitancemeasurementunits)
Hz:Hertz(Frequencymeasurementsunit)
(Ohms):Resistancemeasurementunit
:Batterystatusicon
Minus(negative)sign
:NonContactVoltDetectandhighvoltageicon
PEAKMAXMINPeakMaximumandMinimumreadingmemory
:Diodemeasurementmode
:Continuitymodesymbol
Prefixes:
µ(micro:10
6
),m(milli:10
3
),n(nano:10
9
),k(kilo:10
3
),M(mega:10
6
)
Fig32METERDISPLAY
EX36xenGB_V1.61/17
8
PushButtonDescriptions
Press the M (MODE) button to perform the following. The
o
C/
o
F function is only
available on the EX363 model:
SwitchPosition MODE(M)ButtonFunction
V Hz
(EX365)
A Hz
Ω

µA(EX363) ACDC
TEMP(EX363)
o
C
o
F
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
EX36xenGB_V1.61/17
9
4. Operation
CAUTION:ReadandunderstandalloftheSafetystatementslistedinthesafetysection
ofthismanualpriortouse.
PoweringtheMeter
1. Turntherotaryfunctionswitchtoanypositiontopowerthemeter.Checkthebatteriesifthe
unitfailstopowerON.RefertotheMaintenancesectionforbatteryandfusereplacements.
2. TurnthefunctionswitchtotheOFFpositiontopowerOFFthemeter.
3. Themeterhas
anAutoPowerOFFfeature(APO)wherethemeterswitchesOFFafter20
minutesofinactivity.WhenAPOisenabled,theAPOiconwillshowonthedisplaywhenthe
meterispoweredON.TodisableAPO,refertothenextsection.
Note:Themeterdisplaysthebatterycapacitywhen
poweringup.Thedisplaywilleithershowthe
wordFULL(batteryfullycharged)orapercentagerepresentingremainingbatterypower.The
internationalsegmentedbatterystrengthsymbol
isalsoshownonthedisplayatalltimeswhen
themeterisONandwhenthereissufficientbatterypowertopowerthemeter.
DisableAutoPowerOFF
ThemeterwillautopowerOFFafter20minutesofinactivity.Todefeatthisfeature,followthe
stepsbelow.
1. WiththemeterOFF,pressandholdtheM(MODE)buttonand,whilecontinuingtohold,turn
therotaryfunctionswitchtoanypositiontopowerONthemeter.
2. The
displaywillshowAOFF.
3. Releasethebutton.
4. APOwillnowbedisableduntilthenextcycleofpower.
DisplayBacklight
WiththemeterpoweredON,pressthebacklightbutton toswitchthebacklightONorOFF.Note
thatexcessiveuseofthebacklightwillshortenthebatterylife.
SmartDataHold
TofreezetheLCDmeterreading,presstheH(HOLD)button.Whiledataholdisactive,theHOLD
displayiconappearsontheLCD.PresstheHbuttontoreturntonormaloperation.TheHOLDicon
willswitchOFF.
Themeter’sbeeperwillsoundandtheLCDwillflashifthe
detectedsignalis50countsgreaterthan
theheldreading.
TestLeadConsiderations
TestleadprobecoverscanberemovedforCATII1000Vinstallations.Usethetestleadprobe
coversforCATIII1000VorCATIV600Vinstallations.Donotmeasurevoltages>1000VACorDC.
Removethestoragecapsfromthemeterendoftestleadsbeforeconnectingleadstothemeter.
EX36xenGB_V1.61/17
10
VoltageMeasurements
WARNING:RemovethetestleadprobecoversforCATII1000Vinstallations.Usethetest
leadprobecoversforCATIII1000VorCATIV600Vinstallations.Donotmeasurevoltages
greaterthan1000V.
CAUTION:Whenconnectingthetestleadstothecircuitordeviceundertest,connectthe
blackleadbeforethered;whenremovingthetestleads,removetheredbeforetheblacklead.
ACVoltageMeasurements
1. Inserttheblacktestleadbananaplugintothenegative(COM)jackandtheredtestlead
bananaplugintothepositive(V/)jack.
2. Turnthefunctionswitchtothe
position.
3. ThemeterdefaultstotheAuto Rangemode(AutodisplayedonLCD).PresstheRbuttonto
accessthemanualrangemode.PressandholdtheRbuttontoreturntotheAutoRange
mode(Autowillbedisplayed).
4. ReadtheWarningandCautionstatementsaboveto
determinewhetherornottousethe
testleadprobecovers.
5. Touchthetestprobetipstothecircuitundertest.
6. Readthedigitalvalueandthebargraphrepresentationofthemeasurementinthedisplay.
Thedisplaywillalsoindicatetheproperdecimalpointandmeasurementtype/unitssymbols.
7. Notethevoltagealertsymbol
whenvoltageispresent.
8. UsetheMbuttontoviewthefrequency(Hz)ofthemeasuredvoltage.
Fig41ACVOLTAGEMEASUREMENTS
EX36xenGB_V1.61/17
11
DCVoltageMeasurements
1. Inserttheblacktestleadbananaplugintothenegative(COM)jackandtheredtestlead
bananaplugintothepositive(V/)jack.
2. MovetheFunctionSwitchtothe or
m
position.
3. ReadtheWarningandCautionstatementsatthebeginningofthissectiontodetermine
whetherornottousethetestleadprobecovers.
4. Touchthetestprobetipstothecircuitundertest.Besuretoobservethecorrectpolarity
(redleadtopositive,blackleadtonegative).
5. ThemeterdefaultstotheAutoRangemode(AutodisplayedonLCD).PresstheRbutton
toaccessthemanualrangemode.PressandholdtheRbuttontoreturntotheAuto
Rangemode.
6. Readthedigitalvalueandthebargraphrepresentationofthe
measurementinthe
display.Thedisplaywillalsoindicatetheproperdecimalpointandmeasurement
type/unitssymbols.Ifthepolarityisreversed,thedisplaywillshow()minusbeforethe
value.
7. Notethevoltagealertsymbol whenvoltageispresent.
8. ThemeteriscapableofdetectingDCvoltagesto1000V.
Fig42DCVOLTAGEMEASUREMENTS
EX36xenGB_V1.61/17
12
LoZVoltageMeasurements
WhenthefunctionswitchisturnedtotheLoZ position,themeterincorporatesan
automaticvoltagedetectioncircuittoautomaticallydeterminevoltageACorDCandalowZ
(impedance)circuit*thateliminatesghostvoltagecomplications.RefertotheVoltage
MeasurementssectionearlierinthisguideforSafetyinformationandconnectiondiagrams.
*TheLoZimpedanceisapprox.3kΩincreasingtoover100kΩwhenmeasuring1000V.
1. Inserttheblacktestleadbananaplugintothenegative(COM)jack
andtheredtestlead
bananaplugintothepositive(V/)jack.
2. MovetheFunctionSwitchtotheLoZ
position.
3. Touchthetestprobetipstothecircuitundertest.Besuretoobservethecorrectpolarity
(redleadtopositive,blackleadtonegative).
4. ThemeterdefaultstotheAutoRangemode(AutodisplayedonLCD).Manualrange
cannotbeusedinthismode.
5. Read
thedigitalvalueandthebargraphrepresentationofthemeasurementinthe
display.Thedisplaywillalsoindicatetheproperdecimalpointandmeasurement
type/unitssymbols.Ifthepolarityisreversed,thedisplaywillshow()minusbeforethe
value.
6. ThemeteriscapableofdetectingAC/DC
voltagesto1000V.
7. Notethevoltagealertsymbol whenvoltageispresent.
PEAKMAXMINHOLDMode(AConly)
InthePEAKHOLDmodethemeterrecordsMAXandMIN measurementvalues.Whenthe
measurementexceedsarecordedMAXorMINvalue,themeterreplacestheexistingvalue
withthenewervalue.
1. PressandholdthePEAKbuttonforatleasttwoseconds.PEAKMAXMINwillbedisplayed
andthemeterwillbeginrecordingMAXandMINvalues.
2. AshortpressofthePEAKbuttonwillshowtheMAXrecordedreading.
3. AnothershortpressofthePEAKbuttonwillshowtheMINrecordedreading.
4. PressthePEAKbuttonagaintoviewrealtimereadingswhile
MAXMINrecording
continuesinthebackground.
5. TopauseMAXMINrecording,presstheHbutton.ThedisplaywillfreezeandtheHOLD
iconwillappear.PressHagaintoreturntorealtimereadings(withMAXMINrecording
continuinginthebackground)
6. ToexitthePEAKHOLDMAX
MINmode,pressandholdthePEAKbuttonfor>2seconds.
ThemeterwillreturntonormaloperationandthePEAKMAXMINiconswillswitchOFF.
EX36xenGB_V1.61/17
13
10AAC/DCCurrentMeasurements(EX365only)
WARNING:Donothandlethetestleadsabovethefinger/handguardbarrier.
CAUTION:ObserveCATIII1000VCATIV600VwithrespecttoEarthGround.
1. InserttheblacktestleadintotheCOMterminaland theredtestleadintotheAterminal.
2. Turnthemeter’sfunctionswitchtothe
or position.TheAsymbolwillappearonthe
displayindicatingAmperes(Amps).
3. ThemeterdefaultstotheAutoRangemode.WheninAutomode,thedisplayshowstheAuto
iconintheupperleftcorner.UsetheRbuttontomanuallyrangethemeter.Pressandhold
theR
buttontoreturntotheAutoRangemode.
4. ThemeterdisplaywillshowACorDCdependingonthefunctionswitchposition.
5. Currentmeasurementsmustbetakeninserieswiththecircuitundertest.Seeaccompanying
diagram.
6. Touchtheblacktestleadtothenegativesideofthe
circuitandtheredtestleadtothe
positivesideofthecircuit.
7. Readthecurrentmeasurementinthedisplayrepresentedbynumericaldigitsandbargraph.
Thedisplaywillindicatetheproperdecimalpointandvalue.InDC,Ifthepolarityisreversed,
thedisplaywillshow(
)minusbeforethevalue.
8. UsetheMbuttontoviewthefrequency(Hz)ofthemeasuredcurrent.
Fig43AC/DC10ACURRENTMEASUREMENTS
EX36xenGB_V1.61/17
14
µAAC/DCCurrentMeasurements(EX363only)
WARNING:Donothandlethetestleadsabovethefinger/handguardbarrier.
CAUTION:ObserveCATIII1000VandCATIV600VwithrespecttoEarthGround.
1. InserttheblacktestleadintotheCOMterminaland theredtestleadintotheµAterminal.
2. Turnthemeter’sfunctionswitchtotheµAposition.TheµAunitssymbolwillappearonthe
displayindicatingthatmicroamperesarebeingmeasured.
3. Themeterdefaultstothe
ManualRangemode.Autorangecannotbeusedinthismode.
4. ThemeterdisplaywillshowACorDCdependingonthefunctionswitchposition.
5. Currentmeasurementsmustbetakeninserieswiththecircuitundertest.Seeaccompanying
diagram.
6. Touchtheblacktestleadtothe
negativesideofthecircuitandtheredtestleadtothe
positivesideofthecircuit.
7. Readthecurrentmeasurementinthedisplayrepresentedbythenumericaldigitsandthebar
graph.Thedisplaywillindicatetheproperdecimalpointandvalue.InDC,Ifthepolarityis
reversed,
thedisplaywillshow()minusbeforethevalue.
Fig44µAAC/DCCURRENTMEASUREMENTS
EX36xenGB_V1.61/17
15
NonContactVoltageDetector
WARNING:Itispossibleforvoltagetobepresentinacircuitevenifthemeterdoesnot
beeporlighttheNCVLEDlampatthetopofthemeter.Alwaysverifymeteroperationona
knownliveACcurrentcircuitandverifythatthebatteriesarefreshbeforeuse.
The audible beeper sounds and the LED lamp at the top of the meter lights when the meter
sensesanelectricalvoltagefield.
IfthemeterdoesnotemitatoneorlighttheLEDinthismode,thereis still the possibilitythat
voltageispresent.Pleaseusecaution.
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).ThedisplaywillshowLoforlowsensitivityorHiforhighsensitivitymode.
3. Notethevoltagedetectiondisplayicon onthedisplaywheninthismode.
4. To test, place the meternear asourceof electricalenergy. Notethat thetip ofthe meter
offersthehighestsensitivity.
5. NotetheaudibletoneandtheLEDlightwhenasourceofelectricalenergyisdetected.
Fig45NONCONTACTVOLTAGEDETECTOR
EX36xenGB_V1.61/17
16
ResistanceMeasurements
Cautions:SwitchOFFpowertothedeviceundertestbeforemeasuring.Donottestoncircuits
ordeviceswhere60VDCor30VACispresent.
1. Inserttheblacktestleadbananaplugintothenegative(COM)jack.Inserttheredtest
leadbananaplugintothepositive(V/)jack.
2. TurntheFunctionSwitchtotheΩposition.
3. UsetheMbuttontoselecttheicononthedisplayindicatingresistanceonly(without
theaudiblecontinuityiconshowing).
4. Touchthetestprobetipsacrossthecircuitorpartundertest.Itisbesttodisconnectone
sideofthepartundertestsotherestofthecircuitwillnotinterferewiththeresistance
reading.
5. Readtheresistancevalueinthe
display.Thedisplaywillindicatetheproperdecimal
pointandvalue.Ifthereadingisoutofrange,theOLdisplayiconwillappear.
Fig46RESISTANCE/CONTINUITYMEASUREMENTS
ContinuityMeasurements
1. InserttheblacktestleadintothenegativeCOMterminalandtheredtestleadintothe
positiveterminal.
2. Setthefunctionswitchtothe position.
3. UsetheMbuttontoselecttheContinuitymode.LookfortheContinuityicononthe
display.
4. Touchthetestprobetipsacrossthewireorcircuitundertest.
5. Iftheresistanceis<20Ω,thebeeperwillsoundandtheLEDlampatthetopofthemeter
willflash.ThebeeperandLEDlampwillswitchoffifthemeasuredsignalrisesabove
approximately200Ω.Foranopencircuitconditionthemeterwilldisplay OL.
EX36xenGB_V1.61/17
17
CapacitanceMeasurements
WARNING:Toavoidelectricshock,removepowertothecircuitundertestanddischargethe
capacitorundertestbeforemeasuring.Donottestoncircuitsordeviceswhere60VDCor
30VACispresent.
1. Setthefunctionswitchtothe
capacitanceposition.
2. InserttheblacktestleadbananaplugintothenegativeCOMjack
andtheredtestleadbananaplugintothepositive jack.
3. PresstheMbuttontoselecttheunitofmeasuresymbolF.
4. Touchthetestprobetips acrossthepartundertest.
5. UsetheRelativemode
tocomparemeasurementstoasaved,knowncapacitancevalue.
SeenextsectionforRelativemodeinstructions.
6. Readthecapacitancevalueinthedisplay.
7. Thedisplaywillindicatetheproperdecimalpointandvalue.
Note:Forlargevaluesofcapacitanceseveralsecondsmayberequiredbeforethereading
stabilizes.
Fig47CAPACITANCEMEASUREMENTS
RelativeMode
InRelativemodeareferencereadingcanbestoredwithwhichtocomparesubsequentreadings.
Pressthe buttontostorethedisplayedreadinginmemory,thisbecomesthereference.The
symbol willbedisplayedwhentheRelativemodeisactive.Subsequentreadingswillnowbe
comparedtothestoredreference(DisplayedReading=MeasurementminusReference).Pressthe
buttonagaintoexittheRelativemode;theRelativesymbolwillswitchoff.
EX36xenGB_V1.61/17
18
DiodeTest
1. InserttheblacktestleadbananaplugintothenegativeCOMjackandtheredtest
leadbananaplugintothepositivejack.
2. Turnthefunctionswitchtoposition.UsetheMbuttontoselectthediodefunctionif
necessary(thediodeandvoltagesymbolswillappearonthe
LCDwheninDiodetestmode).
3. Touchthetestprobetips tothediodeorsemiconductorjunctionundertest.Notethe
meterreading.
4. Reversethetestleadpolaritybyreversingtheredandblackleads.Notethisreading.
5. Thediodeorjunctioncanbeevaluatedasfollows:
Ifonereadingdisplaysavalue(typically0.400Vto0.900V)andreversereadingdisplays
OL,thediodeisgood.
IfbothreadingsdisplayOLthedeviceisopen.
Ifbothreadingsareverysmallor0’,thedeviceisshorted.
Fig48DIODETESTING
1
2
2
1
1
2
1
2
EX36xenGB_V1.61/17
19
TemperatureMeasurements(EX363only)
1. InsertthesuppliedtemperatureprobedintotheCOMandpositiveterminalsobserving
correctpolarity.
2. Turnthefunctionswitchtothetemperatureposition.Usethe
o
C/
o
Fbuttontoselectthe
desiredunitofmeasure.
3. Touchthetemperatureprobetiptothedeviceundertestorleavethetemperatureprobe
intheopenairtomeasureambienttemperature.
4. ReadthetemperaturemeasurementontheLCD.
5. Tosetthecurrentlyselectedunitofmeasureasdefault,pressandholdthebacklightbutton
whileturningthemeterON.
TEMP
Fig49TEMPERATUREMEASUREMENTS
EX36xenGB_V1.61/17
20
5. Maintenance
WARNING:Toavoidelectricalshock,removethetestleads,disconnectthemeterfrom
anycircuitandturnOFFthemeterbeforeopeningthecase.Donotoperatewithanopencase.
BatteryReplacement
1. Removethetestleadsfromthemeter.
2. Removethemeter’sprotectivecover.
3. RemovethetwoPhillipsheadscrewsthat
securethebatterycompartmentatthe
backofthemeter.
4. Openthebatterycompartmentandreplace
the9Vbatteryobservingcorrectpolarity.
Reassemblethemeterbeforeuse
Safety:Pleasedisposeofbatteriesresponsibly;
neverdisposeofbatteriesinafire,batteries
mayexplodeorleak.Ifthemeterisnottobe
usedfor60daysormore,removethebattery
andstoreseparately.
Fig51BATTERYREPLACEMENT
Neverdisposeofusedbatteriesorrechargeablebatteriesinhouseholdwaste.
Asconsumers,usersarelegallyrequiredtotakeusedbatteriestoappropriatecollection
sites,theretailstorewherethebatterieswerepurchased,orwhereverbatteriesaresold.
Disposal:Donotdisposeofthisinstrumentinhouseholdwaste.Theuseris
obligatedtotakeendof
lifedevicestoadesignatedcollectionpointforthedisposalofelectricalandelectronicequipment.

  • Page 1 1
  • Page 2 2
  • Page 3 3
  • Page 4 4
  • Page 5 5
  • Page 6 6
  • Page 7 7
  • Page 8 8
  • Page 9 9
  • Page 10 10
  • Page 11 11
  • Page 12 12
  • Page 13 13
  • Page 14 14
  • Page 15 15
  • Page 16 16
  • Page 17 17
  • Page 18 18
  • Page 19 19
  • Page 20 20
  • Page 21 21
  • Page 22 22
  • Page 23 23
  • Page 24 24
  • Page 25 25

Extech Instruments EX363 User manual

Category
Measuring, testing & control
Type
User manual
This manual is also suitable for

Ask a question and I''ll find the answer in the document

Finding information in a document is now easier with AI