TECPEL DMM-129A User manual

OPERATINGINSTRUCTIONS
DIGITALMULTIMETER
MAX 1000V
20A/30sec
FUSED FUSED 750V
COM
mA
20A MAX 400mA Cx(+) Cx(-) mA
µA
Auto power off
Type K +
ΩHz µA
Ω
CAT.III
MAX
V
F
C
20A
SHIFT
MIN/MAXRANGE
cal>2s
REL
±
10020 30
µ
HOLD
40
Ω
µ

CONTENTS
INTRODUCTION---------------------------------------------------------------1
UNPACKINGANDINSPECTION ----------------------------------------- 1
SAFETYINFORMATION---------------------------------------------------- 2
INSTRUMENTLAYOUT-------------------------------------------------- 4
HOWTOMAKEMEASUREMENTS------------------------------------ 10
VoltageMeasurements-------------------------------------------------------- 10
CurrentMeasurements-------------------------------------------------------- 11
Resistance Measurements--------------------------------------------------- 12
ContinuityTesting ------------------------------------------------------------ 13
DiodeTesting ------------------------------------------------------------------ 13
FrequencyMeasurements--------------------------------------------------- 14
Capacitance Measurements------------------------------------------------- 14
TemperatureMeasurements------------------------------------------------- 15
RS232 Operating-------------------------------------------------------------- 15
SPECIFICATIONS----------------------------------------------------------- 16
MAINTENANCE------------------------------------------------------------ 20
Replacing theBattery-------------------------------------------------------- 20
Replacing theFuse----------------------------------------------------------- 21

INTRODUCTION
Thismanualcontainsinformation and warningswhichmustbefollowed
toensuresafeoperation and retainthemeterinsafecondition.
WARNING
READ “SAFETYINFORMATION”BEFOREUSINGTHEMETER.
Thismultimeterisahandheld,4000-countinstrumentthatisdesigned
foruseinthelaboratory,fieldservicing,and athome.Themetercom-
binestheprecision ofadigitalmultimeterwiththehigh speedand ver-
satilityofaanalog display.Thismeterfeaturescompactdesign with
roundedcornersforeasyhandling and hasaruggedcaseinshockresis-
tantand fire-retardant.Electronicoverloadprotection forall functions
and ranges.TheProtectiveHolster(optionalaccessory)combinedwith
ruggedcasemakeit adurableand reliableinstrument.
UNPACKINGAND INSPECTION
Upon removing yournewDigitalMultimeter(DMM)fromitspacking,
you shouldhavethefollowing items:
1.DigitalMultimeter
2.TestLeadSet(oneblack,onered)
3.9-Volt Battery(installedinmeter)
4.KTypebeadedwirethermocouple
5.Instruction Manual
6.OneSpareFuse(500mA/500V,6.3mm ×32mm,fastacting)
7.OneRS232 cable,aPCsoftwaredisk.
If any oftheaboveitemsaremissing orarereceivedinadamaged
condition,pleasecontactthedistributorfromwhomyou purchasedthe
unit.
1

SAFETYINFORMATION
Thefollowing safetyprecautionsmustbeobservedtoensuremaximum
personalsafetyduring theoperation,service and repairofthismeter:
1.Readtheseoperating instructionsthoroughlyand completelybefore
operating yourmeter.Payparticularattention toWARNINGSwhich
will informyou ofpotentiallydangerousprocedures.Theinstruc-
tionsinthesewarningsmustbefollowed.
2.Alwaysinspectyourmeter,testleadsand accessoriesforany sign of
damageorabnormalitybeforeeveryuse.If any abnormalconditions
exist(e.g.-brokentestleads,crackedcases,displaynotreading,etc.),
do notattempttotakeany measurements.
3.Donotexposetheinstrumenttodirectsun light,extremetempera-
tureormoisture.
4.Neverground yourselfwhentaking electricalmeasurements.Donot
touchexposedmetalpipes,outlets,fixtures,etc., whichmightbeat
ground potential.Keepyourbody isolatedfromground by using
dryclothing,rubbershoes,rubbermats,orany approvedinsulating
material.
5.ToavoidelectricshockuseCAUTION whenworking withvoltages
above40Vdcor20Vac.Suchvoltagesposeashockhazard.
6.Neverexceedthemaximumallowableinputvalueofany function
whentaking ameasurement.Refertothespecificationsformaxi-
muminputs.
7.Nevertouchexposedwiring,connectionsorany livecircuit when
attempting totakemeasurements.
8.Donotattempttooperatethisinstrumentinanexplosiveatmosphere
(i.e.inthepresence offlammablegasesorfumes,vaporordust).
9.Whentesting forthepresence ofvoltage,makesurethevoltagefunc-
tion isoperating properlyby reading aknownvoltageinthatfunc-
tion beforeassuming thatazeroreading indicatesano-voltage
condition.Alwaystestyourmeterbeforeand aftertaking measure-
mentson aknownlivecircuit.
10.Calibration and repairofany instrumentshouldonlybeperformed
by qualifiedand trainedservice technicians.
11.Donotattemptcalibration orservice unless trainedand anotherper-
son capableofrendering firstaidand resuscitation ispresent.
12.Remember:Think Safety,ActSafely.
2

3
SAFETYINFORMATION
Theinstrumentcomplieswithclass II,overvoltageCAT.III 1000Vof
theIEC1010-1(EN61010-1);UL3111-1;and CAN-CSAC22.2No.
1010.010-30 standards.Pollution degree 2inaccordance withIEC-664
indooruse.If theequipmentisusedinamannernotspecified,thepro-
tection providedby theequipmentmaybeimpaired.
Whenservicing,useonlyspecifiedreplacementpartsor
equivalent.
WARNING:Toavoidelectricshockdisconnectmeasuring
terminalsbeforeremoving batterycover.
AVIS:Poureviterlelechocelectrique,debrancherlesbornes
demmeaureavantd’enleverlecapotagearriere.
Thesymbolsusedon thisinstrumentare:
Caution,riskofelectricshock
Caution,refertoaccompanying documents
Equipmentprotectedthroughoutby Doubleinsulation (Class
II)
Alternating current
Directcurrent
Ground
Thisproductcomplieswiththerequirementsofthefollowing European
CommunityDirectives:89/336/EEC(ElectromagneticCompatibility)and
73/23/EEC(LowVoltage)asamendedby 93/68/EEC(CEMarking).
However,electricalnoiseorintenseelectromagneticfieldsinthevicinityoftheequipment
maydisturbthemeasurementcircuit.Measuring instrumentswill alsorespond tounwanted
signalsthatmaybepresentwithinthemeasurementcircuit.Usersshouldexercisecareand
takeappropriateprecautionstoavoidmisleading resultswhenmaking measurementsinthe
presence ofelectromagneticinterference.

INSTRUMENTLAYOUT
MAX 1000V
20A/30sec
FUSED FUSED 750V
COM
mA
20A MAX 400mA Cx(+) Cx(-)
mA
µA
Auto power off
Type K +
ΩHz µA
Ω
CAT.III
MAX
V
F
C
20A
SHIFT
MIN/MAXRANGE
cal>2s
REL
±
100 20 30
µ
HOLD
40
Ω
µ
1
2
4
3
5
6
7
8
14
13
10
9
12
11
4

1.Display.3-3/4digit (3999 maximum)withautomaticdecimalpoint
analog bargraph,lowbatteryand full annunciatorsforfunction and
unit ofmeasurement.
2.RANGEButton
Press (RANGE)button toselecttheManualRangemodeand turn
off the“AUTO”annunciator.(Themeterremainsintherangeit was
inwhenmanualranging wasselected).
IntheManualRangemode,eachtimeyou press (RANGE)button,
therange(and theinputrangeannunciator) increments,and anew
valueisdisplayed.Toexit theManualRangemodeand returnto
autoranging,press and holddown(RANGE)button for2seconds.
The“AUTO”annunciatorturnsbackon.
3.REL Button
WhentheREL button ispressedthepresentreading becomethe
zeroreading and all subsequentreadingsaredisplayedrelativeto
thisvalue.Thisfunction isclearedby pressing theREL button >
1sec whichreturnsthemetertonormaloperation.
4.PEAK±Button
Recordthepeak+orpeak-valueinameasurement.Itisusablewith
AC/DCvoltage,AC/DCcurrentmeasurements.If thepressedtime
>2sec,thePEAK function will entertocalibration mode,theLCD
will show“CAL”and theinternalbufferwill remembertheinternal
OPoff setvoltagethenbacktothemeasuremode.Responsetime:
Morethan1ms.
5.Function/RangeSelectorRotarySwitch
Thisrotaryswitchselectsfunction and rangeneeded.Eachtimethe
rotaryswitchismovedfromOFF toafunction setting,all LCD
segmentswill turnon foronesecond.
5

6.Temperature Jack
Thetemperaturejackislocatedinthelowerleft-hand cornerofthe
frontpanel.Tomeasureawiderangeoftemperature(-50°Cto
+1300°C),plug inaK-typethermocoupleand takethereading di-
rectfromthedigitaldisplay.
7.CX (+)/mAµAInputTerminal
Thisisthepositiveinputterminalforcurrentmeasurement(ac or
dc)up to400mA.Capacitance measurementup to40mF.Connec-
tion ismadetoit using theRedtestlead.
8.20A20 AmperesInputTerminal
Thisisthepositiveinputterminalforcurrentmeasurement(ac or
dc)up to20A.Connection ismadetoit using theRedtestlead.
9.VΩHz
Thisisthepositiveinputterminalforall functionsexceptcurrent
capacitance measurements.Connection ismadetoit using thered
testlead.
10.COMCommonTerminal
Thisisthenegative(ground)inputterminalforall measurement
modes.Connection ismadetoit using theBlacktestlead.
11.Shift Boutton.ShiftDCA/ACA,Ω //function.
12.RS232 Button
Press thebutton toshow“RS232”annunciatoron LCDand tostart
sending datatocomputerbeing connected.
13.MAX/MINButton
TheMAX/MINbutton activatessaving themaximumand minimum
readingsfordisplayintheLCD.Press MAX/MINonce and theMAX
readingwill displayand beupdatedwitheachnewmaximumreading.
Press MAX/MINagainand theminimumreading will bedisplayed
inthesamemannerasthemaximum.
6

7
Press thebutton athirdtimeand bothMAX and MINindicators
blink,indicating thatthemeterisstill saving bothmaximumand
minimumreadings,butisdisplaying thereal-timereading.Eachsuc-
cessivepress ofMAX/MINpermitslooking ateithervalueorthe
real-timereading.TodisableMAX/MIN,press and holdtheMAX/
MINbutton for2seconds.TheLCDindicatorswill disappearand
themeterwill readreal-timeonly.
14.HOLDButton
Press (HOLD)button totoggleinand outoftheDataHoldmode.In
theDataHoldmode,the“HOLD”annunciatorisdisplayedand the
lastreading isfrozenon thedisplay.Press the(HOLD)button again
toexit and resumereadings.
15.Other Functions
•AUTOPOWEROFF
1.Themeterwill automaticallyshutoff iftheFunction/Rangeswitch
position isnotchangedwithin30 minutes.
2.Theautopoweroff modeisactivatedwithan“APO”symbol
indicating on LCD.
3.Afterautopoweroff,press any button on DMM (exceptHOLD
button),orchangerangeposition oftherotaryknob toturnthe
DMM backon again.
4.Disableautopoweroff,settheDMM tooff position,press any
button (excepttheHOLDbutton)on DMM,and holdthebutton
whileturning therotaryknob tothedesiredrangeposition.Re-
leasethebutton whenLCDdisplaysnormally.Note“APO”an-
nunciatorismissing formtheLCD.

•INPUTWARNINGBEEPER
TheInputWarning Beeperisafeaturetoprotectthemeterand you
fromunintentionalmisuse.If theDMM issettomeasureavoltage
whilethetestleadsarepluggedintoacurrentjack,veryhigh current
couldresult whenthetestleadtipsareplacedtothevoltagetest
point.
Thisfeaturewarnsyou thatthetestleadneedstobechangedfroma
currentjacktothevoltagejack.
All currentrangesarefusedwithfastacting ceramicfusesasan
addedprotection.
•TrueRMSMeasurements
ThismultimeterpermitsdirectmeasurementofthetrueRMSvalue
ofasignal.Thisisthebestwaytomeasureparametersusedfor
measurementsrelating topower.
TherelationshipbetweenthetotaltrueRMS(AC+DC)and thecom-
ponentACand DCsignalsisgivenby thefollowing expression:
TrueRMS=√(ACRMSComponent)2+(DCComponent)2
RMSisequivalenttothatDCvaluewhichdissipatesthesameamount
ofpowerinaresistorastheoriginalsignaland canbevisualizedby
therelationshipsVRMS2VDC2
Power==
RR
“Average-responding “metersprovideaccurateRMSreadingsfor
sinusoidalsignals,butcanintroduce significanterrorswhenmea-
suring nonsinusoidalwaveforms.
8

9
ThismultimeterisACcoupledand will accuratelymeasuretheACRMS
componentofaninputsignal.TheDCvoltagefunction will measurethe
DCcomponent.ToobtainthetotaltrueRMSvalue,measuretheRMS
ACcomponenton theACfunction and theDCcomponenton theDC
function.Then,calculatetheTrueRMSvalue,using themeasuredAC
and DCcomponentsand theTrueRMSexpression givenabove.
ACconvertersofall typesarelimitedby theirfrequencyresponseand
inputdynamicrange.Measurementsofcomplexwaveformswill notbe
affectedby converterbandwidthlimitations,providethatall significant
ACcomponentscontainedwithinthewaveformsarewithintheband-
widthoftheconverter.
CrestfactorisameasureoftheinputdynamicrangeofanACconverter.
Itexpressestheabilityoftheconvertertoacceptasignalthathaslarge
peakvaluescomparedtoitsRMSvaluewithoutsaturating theconverter
circuitryand degading thespecifiedaccuracy.Crestfactorisdefinedas
theratioofthepeakvoltagetothetotalACRMSvoltage.
V(PEAK)
CrestFactor=
V(ACRMS)
PowerCalculations(watts)fromVoltageMeasurements
(Vpk=100V,Load=1kΩresistor)
Sinewave
Squarewave
Trianglewave
5.0
12.3
3.1
5.0
10.0
3.1
0%
+23%
-6%
ACRMS
average
responding
ACRMS
AC
TrueRMS
ACRMS
average
Error
Thefollowing tableshowstheerrorsthatresult whentheaverage-
responding measurementisusedinsteadoftheTrueRMSvalue.

HOW TOMAKEMEASUREMENTS
Beforemaking any measurementsalwaysexaminetheinstrumentand
accessoriesusedwiththeinstrumentfordamage,contamination
(excessivedirt,grease,ect.)and defects.Examinethetestleadsfor
crackedorfrayedinsulation and makesuretheleadplugsfit snuglyinto
theinstrumentjacks.If any abnormalconditionsexistdo notattemptto
makeany measurements.
VOLTAGEMEASUREMENTS
1.Inserttheblackand redtestleadsintotheCOMand V-Ωinput
terminalsrespectively.
2.SelectthedesiredACvoltagerange(V),orDCvoltagerange
(V).
WARNING
Toavoidpossibleelectricshock,instrumentdamageand /orequip-
mentdamage,do notattempttotakeany voltagemeasurementsif
thevoltageisabove1000Vdc/750Vac.1000Vdcand 750Vac are
themaximumvoltagesthatthisinstrumentisdesignedtomeasure.
The“COM”terminalpotentialshouldnotexceed500Vmeasured
toground.
3.Connectthetestleadtipsinparallelwiththecircuit tobemeasured
(e.g.across aloadorpowersupply).Becarefulnottotouchany
energizedconductors.Notethereading.
4.Whenall measurementsarecompleter,disconnectthetestleadsfrom
thecircuit undertest.Removetestleadsfromthemultimeter.
ForDCvoltagereadings,theREDleadtipshouldbeconnectedto
thepositivesideofthecircuit,theBLACKleadtothenegativeside.
10

Aminussign on thelefthand sideoftheLCDwill appearifthe
leadsareconnectedtheotherwayround.
CURRENTMEASUREMENTS
Thesearemadeinserieswiththetestcircuit.All thecurrenttobemea-
suredflowsthrough themultimeter.
WARNING
Donotattempttomeasurecurrentsinhigh energy circuitscapable
ofdelivering greaterthan600V.Since thefuseisratedat600V
damageorinjurycouldoccur.The20Ainputterminalisprotected
by a20A/600Vhigh energy,fastblowfuse.ThemAinputterminal
isprotectedby a500mA/500Vfastblowfuse.
Donotexceedthelimitsofeachcurrentinputterminal.Thisis20A
(maximumtimelimit of30 secondsforcurrentsgreaterthan10A)for
the20Aterminaland 400mAforthemAterminal.
All currentragesarefused.If acurrentgreaterthan20Aon the20A
rangeorgreaterthan500mAon all otherrangesflows,thefusewill
blowcausing anopencircuit betweenthecurrentmeasuring terminals.
1.InserttheBLACKtestleadintheCOMinputterminal.
2.Formeasuring currentsless than400mA,connecttheREDtestlead
tothemAinputterminal.Formeasuring currentsbetween400mA
and 20AconnecttheREDtestleadtothe20Aterminal.
3.SelectthedesiredACcurrentrangeorDCcurrentrange.
NOTE:If the20Arangeisselectedthenthe20Ainputterminal
mustbeselectedinstep2.If theµA,mArangesisselectedthemA
inputterminalmustbeselectedinstep2.
11

4.SwitchOFF ordisconnectthecircuit tobemeasuredfromall power
sources,connectthemultimeterinserieswiththeconductorinwhich
thecurrenttobemeasuredflows.
5.SwitchON thecircuit.Notethereading.
6.SwitchOFF ordisconnectthecircuit and removethetestleadsfrom
multimeter.
CAUTION
Acommon abuseofmultimetersintoattempttomeasureavoltage
whilethetestleadsarestill pluggedintothecurrentinputterminals.
Thisbasicallyputsashortcircuit across thevoltagesource since
currentrangeshavealowimpedance.If thevoltagesource istypi-
cally240VACora3-phaseindustrialvoltage(415V),veryhigh
fault currentscanresult.Thisiswhy all currentinputterminalare
fused.If thefusesblowtheymustonlybereplacedby theequiva-
lentonesotherwisethesafetyoftheinstrumentmaybeimpaired.
7.NeverapplyavoltagebetweentheCOMterminaland current
terminals.
8.Whenswitching betweencurrentrangestoobtaingreateraccuracy
and betterresolution,completelyde-energize thecircuit tobemea-
suredbeforechanging therange.
RESISTANCEMEASUREMENTS
CAUTION
Turnoff poweron thetestcircuit and dischargeall capacitorsbefore
attempting in-circuit resistance measurements.If anexternalvolt-
ageispresentacross acomponent,it will beimpossibletotakean
accuratemeasurementoftheresistance ofthatcomponent.
12

1.InserttheBLACKand REDtestleadsintotheCOMand VΩinput
terminalsrespectively.
2.Settherotaryselectorswitchtothe(Ω)position.
3.ConnecttheBLACKand REDtestprobetipstothecircuit ordevice
undertest,making sureit isde-energizedfirst.
4.Theresistance inthetestleadscandiminishaccuracyon thelowest
(400Ω)range.Theerrorisusually0.1to0.2Ωforastandardpairof
testleads.Todeterminetheerror,shortthetestleadstogetherand
thenusethe(REL)Relativemodetoautomaticallysubtractthelead
resistance fromresistance measurements.
CONTINUITYTESTING
1.Selectthe( ) position by turning therotaryselectorswitch.
2.Followsteps1and 3asforresistance measurements.Anaudible
tonewill sound forresistance less thanapproximately40Ω.Afterall
measurementsarecompleted,disconnectthetestleadsfromthecir-
cuit and fromthemultimeterinputterminals.
DIODETESTING
CAUTION
Measurementsmustonlybemadewiththecircuit powerOFF.
1.Settherotaryselectorswitchtothe( ) position.
2.Followsteps1and 3asforresistance measurements.
3.TheREDleadshouldbeconnectedtotheanodeand theBLACK
leadtothecathode.Forasilicon diode,thetypicalforwardvoltage
shouldbeabout0.6V.
13

14
FREQUENCY MEASUREMENTS
1.SettheFunction/RangeswitchtoHzforfrequencymeasurement.
2.ConnecttheredtestleadtotheVΩ Hzjackand theblacktest
leadtotheCOMjack.
3.Connectthetestleadstothepointofmeasurementand readthe
frequencyfromthedisplay.
CAPACITANCEMEASUREMENTS
CAUTION
Turnoff powerand dischargethecapacitorbeforeattempting aca-
pacitance measurement.UsetheDCVfunction toconfirmthatthe
capacitorisdischarged.
1.SettheFunction/Rangeswitchto(capacitance).
2.ConnecttheCOMand theCx(+)µAmAleadstothecapacitor.
Observepolaritywhenmeasureing polarizedcapacitors.
3.Readthecapacitance directlyfromthedisplay.Ashortedcapacitor
will indicateanoverrange.Anopencapacitorwill indicatenearzero
on all ranges.
4.Formaximumaccuracy,steptothedesiredrangeinmanualranging,
thenpress theREL button tozeroouttestleadcapacitance before
themeasurement.
5.Thebargraph isdisabledincapacitance measurementmode.
6.In4mFand 40mFranges,thebargraph on LCDwill beinaction
vackand forth.Theisacharging modeduring,notaindication of
themeasuredreading.

15
7.Whenthecapacitortobetestedisconnected,if“disc”symbolindi-
cateson LCD,it meansthereisvoltageexisting thetestedcapaci-
torand needtobedischargedbeforetesting.
TEMPERATUREMEASUREMENTS
1.Selecttherequiredtemperaturerangeand unit ofmeasurement(°C
or°F)by turning therotaryselectordialtooneofthe“TEMP”
positions.
2.ConnectatypeKthermocoupletothethermocoupleinputterminal
(yellowterminal)on thelefthand sideofthefrontpanel.
3.Place thethermocouplejunction tipatthepointwherethetem-
peratureistobemeasured.
NOTE:forveryhigh temperaturesthemultimetermustbekeptfar
enough awayfromthesource oftemperaturetoavoidheatdamage.
Athigh temperatures,thelifeofthetemperatureprobewill be
reduced.
RS232 OPERATING
1.ConnecttheDMM tothePCusing theserialcableprovided.
2.AttheDMM,rotatethefunction selectorswitchtotherange.
3.Press theRS232 button toactivatetheserialportoutput.
4.AtthePC,opentheDMM softwareby double-clicking on theicon
theDMM directoryorfilefolder.(Disk1and Disk2).
5.Operating system:MswindowsversionsWIN95 orWIN98.
6.OperationsofRS232 software
Pleaserefertooperationsofeachfunction describedinthesoftware.

16
SPECIFICATIONS
•Display:3¾ digit (4000 counts),42 segmentsanalog bargraph and
function/unitssign annunciators.
•Polarity:Automatic,(-) negativepolarityindication.
•Overrangeindication:(OL)or(-OL)isdisplayed.
•Lowbatteryindication:The“ ” isdisplayedwhenthebattery
voltagedropsbelowaccurateoperating level.
•Measurementrate:2/sec,nominal; Bargraph:20/sec nominal.
•Operatingenvironment: 0°Cto50°Cat<70%R.H.
•Storagetemperature:-20°Cto60°C,0to80%R.H.withbattery
removedfrommeter.
•Temperature coefficient: 0.1×(specifiedaccuracy)/°C(0°Cto
18°Cor28°Cto50°C).
•Autopower off: 30 minutesafterrotaryswitchormodechanges.
•Altitude:6561.7feet(2000M)
•Battery:Single9Volt battery,NEDA 1604,IEC6F22,JIS006P.
•Batterylife:500 hourstypicalwithalkalinebattery.
•Size (H×W×D): 7.8×3.6×1.7inches(198×90×44mm)
•Weight: Approx.14.1oz(400 g)including battery.
*Accuracyisgivenas±([%ofreading]+[numberofleastsignificant
digits]) at18°Cto28°C,withrelativehumidityup to70%.
DC Volts
OverloadProtection:1000VDC/750VACRMS
RangeResolutionAccuracyInputImpedance
400mV
4V
40V
400V
1000V
100µV
1mV
10mV
100mV
1V
±(0.1%rdg +2d)
±(0.1%rdg +2d)
±(0.1%rdg +2d)
±(0.1%rdg +2d)
±(0.1%rdg +2d)
>100MΩ
10MΩ
9.1MΩ
9.1MΩ
9.1MΩ

17
AC Volts(TRUERMS)
*Thefrequencyresponsefor400mVrangeare50Hzto100Hzonly
InputImpedance:SameasDCVfunction withless than100pF
Crestfactor:≤ 3
OverloadProtection:1000VDCor750VACRMS
DC Current
OverloadProtection:500mA/500Vfuseon mAinputs(fastblowce-
ramicfuse).20A/600Vfuseon 20Ainputs(fastblowceramicfuse).
** 10Acontinuous,20Afor30 secondsmaximum.
AC Current(TRUERMS)
OverloadProtection:500mA/500Vfuseon mAinputs(fastblowce-
ramicfuse).20A/600Vfuseon 20Ainputs(fastblowceramicfuse).
** 10Acontinuous,20Afor30 secondsmaximum.
Crestfactor:≤ 3
RangeResolutionAccuracy(50Hzto500Hz)500Hzto1kHz
400mV
4V
40V
400V
750V
100µV
1mV
10mV
100mV
1V
*±(1.2%rdg +5d)
*±(1.0%rdg +3d)
*±(1.0%rdg +3d)
*±(1.0%rdg +3d)
*±(1.2%rdg +5d)
Unspecified
±(1.5%rdg +5d)
±(1.2%rdg +5d)
±(1.2%rdg +5d)
±(1.5%rdg +5d)
RangeResolutionAccuracyBurdenVoltage
400µA
4mA
40mA
400mA
20A**
0.1µA
1µA
10µA
100µA
10mA
±(1.0%rdg +1d)
±(1.0%rdg +1d)
±(1.0%rdg +1d)
±(1.0%rdg +1d)
±(2.0%rdg +3d)
500mVmax.
2.0Vmax.
500mVmax.
2.0Vmax.
500mVmax.
RangeResolutionAccuracy(50Hzto500Hz)BurdenVoltage
400µA
4mA
40mA
400mA
20A**
0.1µA
1µA
10µA
100µA
10mA
±(1.5%rdg +4d)
±(1.5%rdg +4d)
±(1.5%rdg +4d)
±(1.5%rdg +4d)
±(2.5%rdg +4d)
500mVmax.
2.0Vmax.
500mVmax.
2.0Vmax.
500mVmax.

Resistance
OverloadProtection:500VDCorRMSAC
Continuity Test
OverloadProtection:500VDCorRMSAC
DiodeTest
AudibleIndication:<0.2V
OverloadProtection:500VDCorRMSAC
Capacitance
RangeAudibleThresholdResponseTimeOpenCircuitVolts
400ΩLess than40ΩApprox.100ms-1.2Vdc
18
RangeResolutionAccuracyOpenCircuitVolts
400Ω
4kΩ
40kΩ
400kΩ
4MΩ
40MΩ
0.1Ω
1Ω
10Ω
100Ω
1kΩ
10kΩ
±(0.5%rdg +4d)
±(0.4%rdg +2d)
±(0.4%rdg +2d)
±(0.4%rdg +2d)
±(0.7%rdg +4d)
±(1.5%rdg +4d)
-1.2Vdc
-0.45Vdc
-0.45Vdc
-0.45Vdc
-0.45Vdc
-0.45Vdc
RangeResolutionAccuracyTestCurrent
4V1mV±(1.5%rdg +3d)1.2mA
OpenCircuitVolts
3.0Vdctypical
RangeResolutionAccuracy*
4nF
40nF
400nF
4µF
40µF
400µF
4mF
40mF
1pF
10pF
100pF
1nF
10nF
0.1nF
1µF
10µF
±(3.0%rdg +20 dgts)
±(3.0%rdg +5dgts)
±(3.0%rdg +5dgts)
±(3.0%rdg +5dgts)
±(3.0%rdg +5dgts)
±(5.0%rdg +10 dgts)
±(5.0%rdg +10 dgts)
±(5.0%rdg +10 dgts)