KYORITSU KEW 1018 User manual

1.SafetyWarnings
This instrument has been designed, manufactured and
testedaccordingtothefollowingstandards.
IEC61010-1MeasurementCATⅢ300VPollutiondegree2
IEC61010-031
IEC61326
Thisinstructionmanualcontainswarningsandsafety
ruleswhichmustbeobservedbytheuserto ensure
safeoperation of theinstrumentandretainit in safe
condition.Therefore,readthroughtheseoperating
instructionsbeforeusingtheinstrument.
WARNING
●Read through and understand instructions
containedinthis manual before startingusingthe
instrument.
●Saveand keep the manual handy to enable quick
referencewhenevernecessary.
●Thisinstrumentshouldonlybeusedby suitably
trainedpersonandbesureto follow measurement
proceduresdescribedinthemanual.Kyoritsu
assumesno responsibility fordamageandinjury
causedbymisuseornotfollowinginstructionsinthe
manual.
●Besure tounderstandandfollow allsafety
instructionscontainedinthemanual.
Besuretoobservetheaboveinstructions.
Failuretofollowthe aboveinstructionsmaycause
injury, instrument damage and/or damage to
equipmentundertest.
Thesymbol indicatedontheinstrumentmeansthatthe
usermust refertorelatedpartsin themanualforsafe
operationoftheinstrument.
Besuretocarefullyreadtheinstructionsfollowing each
symbolinthemanual.
DANGER isreserved for conditions and actions
thatarelikelytocauseseriousorfatalinjury.
WARNING isreservedforconditionsandactions
thatcancauseseriousorfatalinjury.
CAUTION is reserved for conditions and actions
thatcancauseinjuryorinstrumentdamage.
DANGER
●Nevermakemeasurementonthecircuitinwhich
electricalpotential to ground over 300V AC/DC
exists.
●Donotattempttomakemeasurementinthe
presenceofflammablegasses.Otherwise, the
useoftheinstrumentmaycausesparking,which
canleadtoanexplosion.
●Besureto keep your fingers behind the Finger
barrierpartoftestlead.
●Neverattempttousetheinstrumentifitssurface
oryourhandiswet.
●Donot open the instrument casewhenmaking
measurement.
WARNING
●Neverattempt to make any measurementif any
abnormalconditions are noted, such as broken
case,crackedtestleadsandexposedmetalparts.
●Do not turn the function selector switch with test
leadsconnectedtotheinstrument.
●Donotinstallsubstitutepartsormakeany
modificationtotheinstrument.
●Donottrytoreplacethebatteriesifthesurfaceof
theinstrumentiswet.
●Makesuretodisconnecttestleadsfromthe
deviceundertestwhenopeningthecasefor
batteryreplacement.
CAUTION
●Alwaysmakesureto checkFunctionswitch is
settingto the appropriaterangebeforestarting
measurement.
●Donotexposetheinstrument to the direct sun,
hightemperatureandhumidityordewfall.
●Whentheinstrumentwillnotebeinuseforalong
period,placeitinstorageafterremovingthe
batteries.
●Usea cloth dippedin water or neutral detergent
forcleaningtheinstrument.Donotuseabrasives
orsolvents.
Pleaserefertofollowingexplanationofthesymbols
markedontheinstrumentorinthemanual.
●Symbols
： Ground ： AC ： DC
： ACandDC Ω： Resistance
： Diode ： Buzzer
： Capacitor Hz： Frequency
F： Doubleorreinforcedinsulation
● Measurement
CATⅡ： Primaryelectricalcircuitofequipment
withpowercordforconnectiontooutlet.
CATⅢ： Primary electrical circuit of the
equipment,whichissuppliedpowerfrom
adistributionboard,andcablerunfroma
distributionboardtoanoutlet.
2.Features
ThisisaDigitalMultiMeterprovidingmostportabilityby
meansofstowingtheinstrumentbodytogetherwith
probeinthenotebook-sizecover.
●Designedtointernationalsafetystandards.
IEC61010-1MeasurementCAT.Ⅲ300V
Pollutiondegree2
IEC61010-031
(probeassemblies)
●RELfunction to check thedifferenceofmeasured
values
●Autopowerofffunctiontosavebatteryconsumption
●Dataholdfunction
●DiodeandContinuitycheckfunction
●Auto-rangingfunction
●Frequencymeasurementfunction
●DUTYmeasurementfunction
(ExpressPulsewidth/Pulseperiodasapercentage)
3.Specification
●Measuringrangesandaccuracy
(23±5℃,underthe45%〜75%RH)
DCVFunction(5Autoranging):Inputimpedanceapprox.10MΩ
ACVFunction(4Autoranging):Inputimpedanceapprox.10MΩ
ResistanceFunction(6Autoranging)
Diodecheck/ContinuitycheckFunction
CapacityFunction(6Autoranging)
Frequency(6Autoranging)/DUTYFunction
Range
400mV
4V
40V
400V
600V
Measuringrange
0〜600V
Accuracy
±0.8%rdg±5dgt
±1.0%rdg±5dgt
Range
4V
40V
400V
600V
Measuringrange
0〜600V
Accuracy
±1.3%rdg±5dgt(50/60Hz)
±1.7%rdg±5dgt(〜400Hz)
±1.6%rdg±5dgt(50/60Hz)
±2.0%rdg±5dgt(〜400Hz)
Range
400Ω
4kΩ
40kΩ
400kΩ
4MΩ
40MΩ
Measuringrange
0〜40MΩ
Accuracy
±1.0%rdg±5dgt
±2.5%rdg±5dgt
Range
4nF
40nF
400nF
4uF
40uF
200uF
Measuringrange
〜200uF
Accuracy
±5.5%rdg±10dgt
±3.5%rdg±10dgt
±3.5%rdg±5dgt
±4.5%rdg±5dgt
Range
10Hz
100Hz
1000Hz
10kHz
100kHz
200kHz
DUTY
Measuringrange
〜200kHz
Inputsensitivity:
morethan1.5V(RMS)
Accuracy
±0.1%rdg±5dgt
0.1〜99.9%
(Pulsewidth/Pulseperiod)
±2.5%rdg±5dgt
Function
Diodecheck
Continuitycheck
Measuringrange
Testcurrentapprox.0.4mA
Buzzerbeepsbelowabout120Ω
Note:
*AtVoltagefunction,theAuto-rangingfunctionisreleased
bypressingtheSELECTkey.Tomeasureavoltage
again,turntheFunctionswitchtothe"OFF"position
once.ThensetittotheVoltagefunctionagain.
●Standards:
IEC61010-1 MeasurementCATⅢ300V,pollutiondegree2
MeasurementCATⅡ600V,pollutiondegree2
IEC61010-031
IEC61326
●Methodofoperation:△∑method
●Indication:
LCDmaximumvalue3999(ACV,DCV,Ω,F)
units,symbols
●Overrangedisplay:
"OL"symbolisdisplayedontheLCD.
Incasethatthevalueisbeyondeffectivemeasuring
rangeat the position ofΩ function range and manual
range.
●Auto-ranging:
Rangeshiftstoupperrangewhenindicatedvalueis
morethan3999.Rangeshiftstolowerrangewhen
indicatedvalueislessthan360.
●Samplingrate: approx.400ms
●OperatingEnvironmentalconditions
−indooruse
−altitudeupto2000m
●
Temperature&Humidityrange(guaranteedaccuracy):
23℃±5℃ Relativehumidity:lessthan75%
●OperatingTemperature&Humidityrange:
0℃〜+40℃ Relativehumidity:lessthan80%
●StorageTemperature&Humidityrange:
-20℃〜+60℃ Relativehumidity:lessthan70%
●InsulationResistance:
Itshouldbemorethan10MΩ/DC1000Vbetween
electricalcircuitandenclosures.
●WithstandVoltage:
ItshouldbemorethanAC3700V/foroneminute
betweenelectricalcircuitandenclosures.
●OverloadProtection:
Voltagefunction: 720V(RMS.)10seconds
Resistancefunction: 250V(RMS.)10seconds
Diode/Continuity: 250V(RMS.)10seconds
Capacityfunction: 250V(RMS.)10seconds
Frequencyfunction:250V(RMS.)10seconds
●Dimensions: approx.107(L)x54(W)x10(D)mm
●Weight: approx.70g(includingbatteries)
●Powersource: TwoLR44(SR44)1.5Vorequivalent
●Accessories: TwoLR44(SR44)batteries
Portableholder
Instructionmanual
CAUTION
Thevoltageshownaboveisthe overloadprotection
(overvoltageprotection)fortheinstrument.
Makesurenottoexceedthevalueofvoltageshown
above.
4.InstrumentLayout
①FunctionSelectorSwitch ④DATAHOLDKey
②Display ⑤TestLeads
③SELECTKey
5.Preparation
5-1CheckingBatteryVoltage
SettheFunctionSelectorSwitchtootherpositions
excepttheOFFposition.
BatteryVoltageisenoughifindicationisclearandBT
symbolisnotindicatedinthisbout.
IfBTsymbolisindicatedornoindicationonthe
display,followtotheBatteryReplacementprocedures
showninitem9inthisdocumentandreplacewithnew
batteries.
INSTRUCTIONMANUAL
6.Measurements
6-1VoltageMeasurement(DCV,ACV)
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermakemeasurementonacircuitover600V
AC/DC.(electricalpotentialtoground300VAC/DC)
●DonotoperateFunctionSelectorSwitchduring
measurement.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
6-1-1DCVoltageMeasurement(DCV)
(1)SettheFunctionSelectorSwitchto" "position.
(Then, "AUTO"," "and"mV" symbols are indicated
onthedisplay.)
(2)Connectthe black test lead to the negative side of
thecircuitunderthetestandtheredtestleadtothe
positivesideofthecircuit,thenthemeasuredvalue
isindicatedonthe display. If you connect thetest
leadstheother way, "
- "symbolis indicated on the
display.
6-1-2ACVoltageMeasurement(ACV)
(1)SettheFunctionSelectorSwitchto" "position.
(Then,"AUTO"," ",and"V"symbolsareindicated
onthedisplay.)
(2)Connectthetestleadstothecircuitundertest.
Measuredvalueisindicatedonthedisplay.
Note)Evenif short-circuit theinputlineattherange of
AC4V,2〜5dgtmayremainindicated.
6-2ResistanceMeasurement
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuit inwhich
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
(1)SettheFunctionSelectorSwitchto"Ω"position.
(Then,"AUTO"and"MΩ"symbolsareindicatedon
thedisplay.)Makesurethatthe"OL"symbolis
indicatedon the display at thisbout, then short the
testleadtipsandcheck"0"isindicatedonthe
display.
(2)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.
Note)Evenifshortthetestleadtips,indicatedvaluemay
notbe "0". But this isbecause of the resistanceof
testleadsandnotafailure.
6-3ContinuityCheck/DiodeCheck
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuit inwhich
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
6-3-1ContinuityCheck
(1)SettheFunctionSelectorSwitchto" / "position.
(Then," "and Ω symbols are indicated on the
display.)
(2)Makesure that the"OL"symbol is indicated on the
displayatthisbout,thenshortthetestleadtipsand
check"0"isindicatedonthedisplayandcheckifthe
buzzerbeeps.
(3)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.The
buzzerbeepsbelowabout120Ω.
Note)Evenifshortthetestleadtips,indicatedvaluemay
notbe "0". But this isbecause of the resistanceof
testleadsandnotafailure.
6-3-2DiodeCheck
(1)SettheFunctionSelectorSwitchto" / "position.
(Then," "and"Ω"symbolsareindicatedonthe
display.)
(2)PresstheSELECTKeytwiceandsettheinstrument
toDiodeCheckmode.(Then," "and"V"
symbolsare indicated onthedisplay.)Makesure
thatthe "OL" symbol is indicatedon the display at
thisbout,thenshortthetestleadtipsandcheck"0"
isindicatedonthedisplay.
(3)Connectthe black testlead to the cathode sideof
theDiodeandtheredtestleadtotheanodesideof
theDiode.
ForwardvoltageofDiodeisindicatedonthedisplay.
(4)Connecttheblacktestleadtotheanodesideofthe
Diodeandtheredtestleadtothecathodesideofthe
Diode.Normally,"OL"symbolisindicatedonthe
display.
Conclusion:Diodeis OK if the instrument complieswith
aboveitems(3)and(4).
Note)Open-circuitvoltagebetweenmeasuringterminalsis
approx.1.5V.(measuringcurrentapprox.0.4mA)
6-4CapacitanceMeasurement
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuit inwhich
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
●Makesuretodischargethecapacitorbeforemaking
measurement.
(1)SettheFunctionSelectorSwitchto" "position.
(Then,"AUTO"and "nF" symbols are indicatedon
thedisplay.)
(2)PresstheSELECTkeyand"0"shallbeindicated.
(Then,"△"symbolisindicatedonthedisplay.)
(3)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.
Measuringunit"nF" / "uF" is automatically chosen
andindicatedduetothemeasuredvalue.
Note)Itmay take some time according to the measuring
capacitance.
Measuringcapacitance<4uFMeasuringtimeis
about2seconds
Measuringcapacitance < 40uF Measuringtimeis
about7seconds
Measuringcapacitance < 100uF Measuringtime is
about15seconds
6-5FrequencyMeasurement
DANGER
●Toavoid the dangerofgettingelectrical shocks,
nevermakemeasurementonacircuitover300V
AC/DC.(electricalpotentialtoground300VAC/DC)
●DonotoperateFunctionSelectorSwitchduring
measurement.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
FrequencycanbemeasuredatACVfunctionsby
pressing"Hz/DUTY"Switch.Concerningwiththe
directionforuseof"Hz/DUTY"Switch,please
referencetotheitem7-1Hz/DUTYinthisdocument.
Note)Theminimuminput canbemeasuredisapprox.
1.5V.
7.HowtouseFunctionSwitches
7-1SELECT,Hz/DUTYKey
Ateachfunction,theactionsofSELECT,Hz/DUTYkey
aredifferentsopleaserefertofollowingitemsandmake
activeuseofthem.
●ACVfunction
(AbovetwokeysactasHz/DUTYswitchkey.)
CapableofselectingtheVoltage,Frequencyor
DUTYmeasurementmode.
Attheinitialcondition,Voltagemeasurementhas
beenselectedfortheACVfunction.
Bypressing"Hz/DUTY"key,measuringmode
changes.
"Voltage"→ "Frequency"→ "DUTY"
●DCV,Ω andCapacitancemeasurement
(AbovetwokeysactasREL△ key.)
Indicatethedifferencebetweenmeasuredvalues.
Whenany function ("DCV", "Ω" and "Capacitance")
selected,themeasuredvaluecanbestoredby
pressingSELECT key and after that, the difference
betweenstoredvalueandmeasuringvalueis
indicatedonthedisplay
(△markiskeeplightingonthedisplaywhileavalue
isstored)
Thestoredvaluecanbereleasedbypressing
"SELECT"keyagain.
"Release"→ "Memory"
●Continuitycheck/Diodecheckfunction
(ChangebetweenContinuitycheckandDiodecheck)
At the initial condition, "Continuity check" mode has
beenselectedfortheContinuitycheck/Diodecheck
function.
Bypressing "SELECT"key,measuringmode
changes.
"Continuitycheck"→ "Diodecheck"
Therelativemeasurementisallowedinthefollowing
range.
*Measuringrange=Fullscalevalue at a range−
initialvalue
7-2DATAHOLDKey
Themeasuredvaluecanbeholdatallfunctions.
Bypressing "DATA HOLD" key,"DH"symbolindicated
onthedisplayandtheindicatedvaluecanbeheld.
Bypressing"DATAHOLD"keyagain,"DH"symbol
disappearsfromthedisplayandhelddataisreleased.
8.AutoPowerOff
Autopowerofffunctionoperateswhenabout15minutes
passedafterpoweronthisinstrument.WhenAuto
powerofffunctionoperatesandtheinstrumentpowered
off,the power-off statuereturns to normalby pressing
anykey.
9.BatteryReplacement
DANGER
●Neveropentheinstrumentcasewhenmaking
measurement.
●Toavoidgettingelectricalshock,besuretoremove
testleads from the instrumentwhenopeningthe
instrumentcaseinordertoreplacebatteries.
(1)RemovethePortableholderfromtheinstrument.
(2)Loosenone screw on the bottomof the instrument
andopenthebatterycover,thenreplacebatteries.
Battery:TwoLR44(SR44)1.5Vorequivalent
10.Maintenance
Useaclothdipped inwateror neutraldetergentfor
cleaningtheinstrument.Donotuseabrasivesor
solvents.
①
③
②
④
⑤
DISTRIBUTOR
KYORITSUELECTRICAL
INSTRUMENTSWORKS,LTD．
No.5-20,Nakane2
― chome,Meguro-ku,
Tokyo,152-0031Japan
Phone：81
― 3 ― 3723 ― 0131
Fax
：81 ― 3 ― 3723 ― 0152
URL：http://www.kew-ltd.co.jp
E-mail：[email protected]
Factories：Uwajima＆Ehime
Kyoritsureservestherightstochangespecifications
orDesignsdescribed in this manual without notice
andwithoutobligations.
CARDTYPEAUTORANGEDIGITALMULTIMETER
KEW1018
KYORITSUELECTRICALINSTRUMENTS
WORKS,LTD.TOKYO,JAPAN

1.SafetyWarnings
This instrument has been designed, manufactured and
testedaccordingtothefollowingstandards.
IEC61010-1MeasurementCATⅢ300VPollutiondegree2
IEC61010-031
IEC61326
Thisinstructionmanualcontainswarningsandsafety
ruleswhich must be observedbytheuserto ensure
safeoperation of theinstrumentandretainit in safe
condition.Therefore,readthroughtheseoperating
instructionsbeforeusingtheinstrument.
WARNING
●Read through and understand instructions
containedinthis manual before startingusingthe
instrument.
●Saveand keep the manual handy to enable quick
referencewhenevernecessary.
●Thisinstrumentshouldonlybeusedby suitably
trainedpersonandbesureto follow measurement
proceduresdescribedinthemanual.Kyoritsu
assumesno responsibility fordamageandinjury
causedbymisuseornotfollowinginstructionsinthe
manual.
●Besure tounderstandandfollow allsafety
instructionscontainedinthemanual.
Besuretoobservetheaboveinstructions.
Failuretofollowthe aboveinstructionsmaycause
injury, instrument damage and/or damage to
equipmentundertest.
Thesymbol indicatedontheinstrumentmeansthatthe
usermust refertorelatedpartsin themanualforsafe
operationoftheinstrument.
Besuretocarefullyreadtheinstructionsfollowing each
symbolinthemanual.
DANGER isreserved for conditions and actions
thatarelikelytocauseseriousorfatalinjury.
WARNING isreservedforconditionsandactions
thatcancauseseriousorfatalinjury.
CAUTION is reserved for conditions and actions
thatcancauseinjuryorinstrumentdamage.
DANGER
●Nevermakemeasurementonthecircuitinwhich
electricalpotential to ground over 300V AC/DC
exists.
●Donotattempttomakemeasurementinthe
presenceofflammablegasses.Otherwise, the
useoftheinstrumentmaycausesparking,which
canleadtoanexplosion.
●Besureto keep your fingers behind the Finger
barrierpartoftestlead.
●Neverattempttousetheinstrumentifitssurface
oryourhandiswet.
●Donot open the instrument casewhenmaking
measurement.
WARNING
●Neverattempt to make any measurementif any
abnormalconditions are noted, such as broken
case,crackedtestleadsandexposedmetalparts.
●Do not turn the function selector switch with test
leadsconnectedtotheinstrument.
●Donotinstallsubstitutepartsormakeany
modificationtotheinstrument.
●Donottrytoreplacethebatteriesifthesurfaceof
theinstrumentiswet.
●Makesuretodisconnecttestleadsfromthe
deviceundertestwhenopeningthecasefor
batteryreplacement.
CAUTION
●Alwaysmakesureto checkFunctionswitch is
settingto the appropriaterangebeforestarting
measurement.
●Donotexposetheinstrument to the direct sun,
hightemperatureandhumidityordewfall.
●Whentheinstrumentwillnotebeinuseforalong
period,placeitinstorageafterremovingthe
batteries.
●Usea cloth dippedin water or neutral detergent
forcleaningtheinstrument.Donotuseabrasives
orsolvents.
Pleaserefertofollowingexplanationofthesymbols
markedontheinstrumentorinthemanual.
●Symbols
： Ground ： AC ： DC
： ACandDC Ω： Resistance
： Diode ： Buzzer
： Capacitor Hz： Frequency
F： Doubleorreinforcedinsulation
● Measurement
CATⅡ： Primaryelectricalcircuitofequipment
withpowercordforconnectiontooutlet.
CATⅢ： Primary electrical circuit of the
equipment,whichissuppliedpowerfrom
adistributionboard,andcablerunfroma
distributionboardtoanoutlet.
2.Features
ThisisaDigitalMultiMeterprovidingmostportabilityby
meansofstowingtheinstrumentbodytogetherwith
probeinthenotebook-sizecover.
●Designedtointernationalsafetystandards.
IEC61010-1MeasurementCAT.Ⅲ300V
Pollutiondegree2
IEC61010-031
(probeassemblies)
●RELfunction to check thedifferenceofmeasured
values
●Autopowerofffunctiontosavebatteryconsumption
●Dataholdfunction
●DiodeandContinuitycheckfunction
●Auto-rangingfunction
●Frequencymeasurementfunction
●DUTYmeasurementfunction
(ExpressPulsewidth/Pulseperiodasapercentage)
3.Specification
●Measuringrangesandaccuracy
(23±5℃,underthe45%〜75%RH)
DCVFunction(5Autoranging):Inputimpedanceapprox.10MΩ
ACVFunction(4Autoranging):Inputimpedanceapprox.10MΩ
ResistanceFunction(6Autoranging)
Diodecheck/ContinuitycheckFunction
CapacityFunction(6Autoranging)
Frequency(6Autoranging)/DUTYFunction
Range
400mV
4V
40V
400V
600V
Measuringrange
0〜600V
Accuracy
±0.8%rdg±5dgt
±1.0%rdg±5dgt
Range
4V
40V
400V
600V
Measuringrange
0〜600V
Accuracy
±1.3%rdg±5dgt(50/60Hz)
±1.7%rdg±5dgt(〜400Hz)
±1.6%rdg±5dgt(50/60Hz)
±2.0%rdg±5dgt(〜400Hz)
Range
400Ω
4kΩ
40kΩ
400kΩ
4MΩ
40MΩ
Measuringrange
0〜40MΩ
Accuracy
±1.0%rdg±5dgt
±2.5%rdg±5dgt
Range
4nF
40nF
400nF
4uF
40uF
200uF
Measuringrange
〜200uF
Accuracy
±5.5%rdg±10dgt
±3.5%rdg±10dgt
±3.5%rdg±5dgt
±4.5%rdg±5dgt
Range
10Hz
100Hz
1000Hz
10kHz
100kHz
200kHz
DUTY
Measuringrange
〜200kHz
Inputsensitivity:
morethan1.5V(RMS)
Accuracy
±0.1%rdg±5dgt
0.1〜99.9%
(Pulsewidth/Pulseperiod)
±2.5%rdg±5dgt
Function
Diodecheck
Continuitycheck
Measuringrange
Testcurrentapprox.0.4mA
Buzzerbeepsbelowabout120Ω
Note:
*AtVoltagefunction,theAuto-rangingfunctionisreleased
bypressingtheSELECTkey.Tomeasureavoltage
again,turntheFunctionswitchtothe"OFF"position
once.ThensetittotheVoltagefunctionagain.
●Standards:
IEC61010-1 MeasurementCATⅢ300V,pollutiondegree2
MeasurementCATⅡ600V,pollutiondegree2
IEC61010-031
IEC61326
●Methodofoperation:△∑method
●Indication:
LCDmaximumvalue3999(ACV,DCV,Ω,F)
units,symbols
●Overrangedisplay:
"OL"symbolisdisplayedontheLCD.
Incasethatthevalueisbeyondeffectivemeasuring
rangeat the position ofΩ function range and manual
range.
●Auto-ranging:
Rangeshiftstoupperrangewhenindicatedvalueis
morethan3999.Rangeshiftstolowerrangewhen
indicatedvalueislessthan360.
●Samplingrate: approx.400ms
●OperatingEnvironmentalconditions
−indooruse
−altitudeupto2000m
●
Temperature&Humidityrange(guaranteedaccuracy):
23℃±5℃ Relativehumidity:lessthan75%
●OperatingTemperature&Humidityrange:
0℃〜+40℃ Relativehumidity:lessthan80%
●StorageTemperature&Humidityrange:
-20℃〜+60℃ Relativehumidity:lessthan70%
●InsulationResistance:
Itshouldbemorethan10MΩ/DC1000Vbetween
electricalcircuitandenclosures.
●WithstandVoltage:
ItshouldbemorethanAC3700V/foroneminute
betweenelectricalcircuitandenclosures.
●OverloadProtection:
Voltagefunction: 720V(RMS.)10seconds
Resistancefunction: 250V(RMS.)10seconds
Diode/Continuity: 250V(RMS.)10seconds
Capacityfunction: 250V(RMS.)10seconds
Frequencyfunction:250V(RMS.)10seconds
●Dimensions: approx.107(L)x54(W)x10(D)mm
●Weight: approx.70g(includingbatteries)
●Powersource: TwoLR44(SR44)1.5Vorequivalent
●Accessories: TwoLR44(SR44)batteries
Portableholder
Instructionmanual
CAUTION
Thevoltageshownaboveisthe overloadprotection
(overvoltageprotection)fortheinstrument.
Makesurenottoexceedthevalueofvoltageshown
above.
4.InstrumentLayout
①FunctionSelectorSwitch ④DATAHOLDKey
②Display ⑤TestLeads
③SELECTKey
5.Preparation
5-1CheckingBatteryVoltage
SettheFunctionSelectorSwitchtootherpositions
excepttheOFFposition.
BatteryVoltageisenoughifindicationisclearandBT
symbolisnotindicatedinthisbout.
IfBTsymbolisindicatedornoindicationonthe
display,followtotheBatteryReplacementprocedures
showninitem9inthisdocumentandreplacewithnew
batteries.
INSTRUCTIONMANUAL
6.Measurements
6-1VoltageMeasurement(DCV,ACV)
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermakemeasurementonacircuitover600V
AC/DC.(electricalpotentialtoground300VAC/DC)
●DonotoperateFunctionSelectorSwitchduring
measurement.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
6-1-1DCVoltageMeasurement(DCV)
(1)SettheFunctionSelectorSwitchto" "position.
(Then, "AUTO"," "and"mV" symbols are indicated
onthedisplay.)
(2)Connectthe black test lead to the negative side of
thecircuitunderthetestandtheredtestleadtothe
positivesideofthecircuit,thenthemeasuredvalue
isindicatedonthe display. If you connect thetest
leadstheother way, "
- "symbolis indicated on the
display.
6-1-2ACVoltageMeasurement(ACV)
(1)SettheFunctionSelectorSwitchto" "position.
(Then,"AUTO"," ",and"V"symbolsareindicated
onthedisplay.)
(2)Connectthetestleadstothecircuitundertest.
Measuredvalueisindicatedonthedisplay.
Note)Evenif short-circuit theinputlineattherange of
AC4V,2〜5dgtmayremainindicated.
6-2ResistanceMeasurement
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuit inwhich
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
(1)SettheFunctionSelectorSwitchto"Ω"position.
(Then,"AUTO"and"MΩ"symbolsareindicatedon
thedisplay.)Makesurethatthe"OL"symbolis
indicatedon the display at thisbout, then short the
testleadtipsandcheck"0"isindicatedonthe
display.
(2)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.
Note)Evenifshortthetestleadtips,indicatedvaluemay
notbe "0". But this isbecause of the resistanceof
testleadsandnotafailure.
6-3ContinuityCheck/DiodeCheck
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuit inwhich
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
6-3-1ContinuityCheck
(1)SettheFunctionSelectorSwitchto" / "position.
(Then," "and Ω symbols are indicated on the
display.)
(2)Makesure that the"OL"symbol is indicated on the
displayatthisbout,thenshortthetestleadtipsand
check"0"isindicatedonthedisplayandcheckifthe
buzzerbeeps.
(3)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.The
buzzerbeepsbelowabout120Ω.
Note)Evenifshortthetestleadtips,indicatedvaluemay
notbe "0". But this isbecause of the resistanceof
testleadsandnotafailure.
6-3-2DiodeCheck
(1)SettheFunctionSelectorSwitchto" / "position.
(Then," "and"Ω"symbolsareindicatedonthe
display.)
(2)PresstheSELECTKeytwiceandsettheinstrument
toDiodeCheckmode.(Then," "and"V"
symbolsare indicated onthedisplay.)Makesure
thatthe "OL" symbol is indicatedon the display at
thisbout,thenshortthetestleadtipsandcheck"0"
isindicatedonthedisplay.
(3)Connectthe black testlead to the cathode sideof
theDiodeandtheredtestleadtotheanodesideof
theDiode.
ForwardvoltageofDiodeisindicatedonthedisplay.
(4)Connecttheblacktestleadtotheanodesideofthe
Diodeandtheredtestleadtothecathodesideofthe
Diode.Normally,"OL"symbolisindicatedonthe
display.
Conclusion:Diodeis OK if the instrument complieswith
aboveitems(3)and(4).
Note)Open-circuitvoltagebetweenmeasuringterminalsis
approx.1.5V.(measuringcurrentapprox.0.4mA)
6-4CapacitanceMeasurement
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuit inwhich
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
●Makesuretodischargethecapacitorbeforemaking
measurement.
(1)SettheFunctionSelectorSwitchto" "position.
(Then,"AUTO"and "nF" symbols are indicatedon
thedisplay.)
(2)PresstheSELECTkeyand"0"shallbeindicated.
(Then,"△"symbolisindicatedonthedisplay.)
(3)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.
Measuringunit"nF" / "uF" is automatically chosen
andindicatedduetothemeasuredvalue.
Note)Itmay take some time according to the measuring
capacitance.
Measuringcapacitance<4uFMeasuringtimeis
about2seconds
Measuringcapacitance < 40uF Measuringtimeis
about7seconds
Measuringcapacitance < 100uF Measuringtime is
about15seconds
6-5FrequencyMeasurement
DANGER
●Toavoid the dangerofgettingelectrical shocks,
nevermakemeasurementonacircuitover300V
AC/DC.(electricalpotentialtoground300VAC/DC)
●DonotoperateFunctionSelectorSwitchduring
measurement.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
FrequencycanbemeasuredatACVfunctionsby
pressing"Hz/DUTY"Switch.Concerningwiththe
directionforuseof"Hz/DUTY"Switch,please
referencetotheitem7-1Hz/DUTYinthisdocument.
Note)Theminimuminput canbemeasuredisapprox.
1.5V.
7.HowtouseFunctionSwitches
7-1SELECT,Hz/DUTYKey
Ateachfunction,theactionsofSELECT,Hz/DUTYkey
aredifferentsopleaserefertofollowingitemsandmake
activeuseofthem.
●ACVfunction
(AbovetwokeysactasHz/DUTYswitchkey.)
CapableofselectingtheVoltage,Frequencyor
DUTYmeasurementmode.
Attheinitialcondition,Voltagemeasurementhas
beenselectedfortheACVfunction.
Bypressing"Hz/DUTY"key,measuringmode
changes.
"Voltage"→ "Frequency"→ "DUTY"
●DCV,Ω andCapacitancemeasurement
(AbovetwokeysactasREL△ key.)
Indicatethedifferencebetweenmeasuredvalues.
Whenany function ("DCV", "Ω" and "Capacitance")
selected,themeasuredvaluecanbestoredby
pressingSELECT key and after that, the difference
betweenstoredvalueandmeasuringvalueis
indicatedonthedisplay
(△markiskeeplightingonthedisplaywhileavalue
isstored)
Thestoredvaluecanbereleasedbypressing
"SELECT"keyagain.
"Release"→ "Memory"
●Continuitycheck/Diodecheckfunction
(ChangebetweenContinuitycheckandDiodecheck)
At the initial condition, "Continuity check" mode has
beenselectedfortheContinuitycheck/Diodecheck
function.
Bypressing "SELECT"key,measuringmode
changes.
"Continuitycheck"→ "Diodecheck"
Therelativemeasurementisallowedinthefollowing
range.
*Measuringrange=Fullscalevalue at a range−
initialvalue
7-2DATAHOLDKey
Themeasuredvaluecanbeholdatallfunctions.
Bypressing "DATA HOLD" key,"DH"symbolindicated
onthedisplayandtheindicatedvaluecanbeheld.
Bypressing"DATAHOLD"keyagain,"DH"symbol
disappearsfromthedisplayandhelddataisreleased.
8.AutoPowerOff
Autopowerofffunctionoperateswhenabout15minutes
passedafterpoweronthisinstrument.WhenAuto
powerofffunctionoperatesandtheinstrumentpowered
off,the power-off statuereturns to normalby pressing
anykey.
9.BatteryReplacement
DANGER
●Neveropentheinstrumentcasewhenmaking
measurement.
●Toavoidgettingelectricalshock,besuretoremove
testleads from the instrumentwhenopeningthe
instrumentcaseinordertoreplacebatteries.
(1)RemovethePortableholderfromtheinstrument.
(2)Loosenone screw on the bottomof the instrument
andopenthebatterycover,thenreplacebatteries.
Battery:TwoLR44(SR44)1.5Vorequivalent
10.Maintenance
Useaclothdipped inwateror neutraldetergentfor
cleaningtheinstrument.Donotuseabrasivesor
solvents.
①
③
②
④
⑤
DISTRIBUTOR
KYORITSUELECTRICAL
INSTRUMENTSWORKS,LTD．
No.5-20,Nakane2
― chome,Meguro-ku,
Tokyo,152-0031Japan
Phone：81
― 3 ― 3723 ― 0131
Fax
：81 ― 3 ― 3723 ― 0152
URL：http://www.kew-ltd.co.jp
E-mail：[email protected]
Factories：Uwajima＆Ehime
Kyoritsureservestherightstochangespecifications
orDesignsdescribed in this manual without notice
andwithoutobligations.
CARDTYPEAUTORANGEDIGITALMULTIMETER
KEW1018
KYORITSUELECTRICALINSTRUMENTS
WORKS,LTD.TOKYO,JAPAN

1.SafetyWarnings
This instrument has been designed, manufactured and
testedaccordingtothefollowingstandards.
IEC61010-1MeasurementCATⅢ300VPollutiondegree2
IEC61010-031
IEC61326
Thisinstructionmanualcontainswarningsandsafety
ruleswhich must be observedbytheuserto ensure
safeoperation of theinstrumentandretainit in safe
condition.Therefore,readthroughtheseoperating
instructionsbeforeusingtheinstrument.
WARNING
●Read through and understand instructions
containedinthis manual before startingusingthe
instrument.
●Saveand keep the manual handy to enable quick
referencewhenevernecessary.
●Thisinstrumentshouldonlybeusedby suitably
trainedpersonandbesureto follow measurement
proceduresdescribedinthemanual.Kyoritsu
assumesno responsibility fordamageandinjury
causedbymisuseornotfollowinginstructionsinthe
manual.
●Besure tounderstandandfollow allsafety
instructionscontainedinthemanual.
Besuretoobservetheaboveinstructions.
Failuretofollowthe aboveinstructionsmaycause
injury, instrument damage and/or damage to
equipmentundertest.
Thesymbol indicatedontheinstrumentmeansthatthe
usermust refertorelatedpartsin themanualforsafe
operationoftheinstrument.
Besuretocarefullyreadtheinstructionsfollowing each
symbolinthemanual.
DANGER isreserved for conditions and actions
thatarelikelytocauseseriousorfatalinjury.
WARNING isreservedforconditionsandactions
thatcancauseseriousorfatalinjury.
CAUTION is reserved for conditions and actions
thatcancauseinjuryorinstrumentdamage.
DANGER
●Nevermakemeasurementonthecircuitinwhich
electricalpotential to ground over 300V AC/DC
exists.
●Donotattempttomakemeasurementinthe
presenceofflammablegasses.Otherwise, the
useoftheinstrumentmaycausesparking,which
canleadtoanexplosion.
●Besureto keep your fingers behind the Finger
barrierpartoftestlead.
●Neverattempttousetheinstrumentifitssurface
oryourhandiswet.
●Donot open the instrument casewhenmaking
measurement.
WARNING
●Neverattempt to make any measurementif any
abnormalconditions are noted, such as broken
case,crackedtestleadsandexposedmetalparts.
●Do not turn the function selector switch with test
leadsconnectedtotheinstrument.
●Donotinstallsubstitutepartsormakeany
modificationtotheinstrument.
●Donottrytoreplacethebatteriesifthesurfaceof
theinstrumentiswet.
●Makesuretodisconnecttestleadsfromthe
deviceundertestwhenopeningthecasefor
batteryreplacement.
CAUTION
●Alwaysmakesureto checkFunctionswitch is
settingto the appropriaterangebeforestarting
measurement.
●Donotexposetheinstrument to the direct sun,
hightemperatureandhumidityordewfall.
●Whentheinstrumentwillnotebeinuseforalong
period,placeitinstorageafterremovingthe
batteries.
●Usea cloth dippedin water or neutral detergent
forcleaningtheinstrument.Donotuseabrasives
orsolvents.
Pleaserefertofollowingexplanationofthesymbols
markedontheinstrumentorinthemanual.
●Symbols
： Ground ： AC ： DC
： ACandDC Ω： Resistance
： Diode ： Buzzer
： Capacitor Hz： Frequency
F： Doubleorreinforcedinsulation
● Measurement
CATⅡ： Primaryelectricalcircuitofequipment
withpowercordforconnectiontooutlet.
CATⅢ： Primary electrical circuit of the
equipment,whichissuppliedpowerfrom
adistributionboard,andcablerunfroma
distributionboardtoanoutlet.
2.Features
ThisisaDigitalMultiMeterprovidingmostportabilityby
meansofstowingtheinstrumentbodytogetherwith
probeinthenotebook-sizecover.
●Designedtointernationalsafetystandards.
IEC61010-1MeasurementCAT.Ⅲ300V
Pollutiondegree2
IEC61010-031
(probeassemblies)
●RELfunction to check thedifferenceofmeasured
values
●Autopowerofffunctiontosavebatteryconsumption
●Dataholdfunction
●DiodeandContinuitycheckfunction
●Auto-rangingfunction
●Frequencymeasurementfunction
●DUTYmeasurementfunction
(ExpressPulsewidth/Pulseperiodasapercentage)
3.Specification
●Measuringrangesandaccuracy
(23±5℃,underthe45%〜75%RH)
DCVFunction(5Autoranging):Inputimpedanceapprox.10MΩ
ACVFunction(4Autoranging):Inputimpedanceapprox.10MΩ
ResistanceFunction(6Autoranging)
Diodecheck/ContinuitycheckFunction
CapacityFunction(6Autoranging)
Frequency(6Autoranging)/DUTYFunction
Range
400mV
4V
40V
400V
600V
Measuringrange
0〜600V
Accuracy
±0.8%rdg±5dgt
±1.0%rdg±5dgt
Range
4V
40V
400V
600V
Measuringrange
0〜600V
Accuracy
±1.3%rdg±5dgt(50/60Hz)
±1.7%rdg±5dgt(〜400Hz)
±1.6%rdg±5dgt(50/60Hz)
±2.0%rdg±5dgt(〜400Hz)
Range
400Ω
4kΩ
40kΩ
400kΩ
4MΩ
40MΩ
Measuringrange
0〜40MΩ
Accuracy
±1.0%rdg±5dgt
±2.5%rdg±5dgt
Range
4nF
40nF
400nF
4uF
40uF
200uF
Measuringrange
〜200uF
Accuracy
±5.5%rdg±10dgt
±3.5%rdg±10dgt
±3.5%rdg±5dgt
±4.5%rdg±5dgt
Range
10Hz
100Hz
1000Hz
10kHz
100kHz
200kHz
DUTY
Measuringrange
〜200kHz
Inputsensitivity:
morethan1.5V(RMS)
Accuracy
±0.1%rdg±5dgt
0.1〜99.9%
(Pulsewidth/Pulseperiod)
±2.5%rdg±5dgt
Function
Diodecheck
Continuitycheck
Measuringrange
Testcurrentapprox.0.4mA
Buzzerbeepsbelowabout120Ω
Note:
*AtVoltagefunction,theAuto-rangingfunctionisreleased
bypressingtheSELECTkey.Tomeasureavoltage
again,turntheFunctionswitchtothe"OFF"position
once.ThensetittotheVoltagefunctionagain.
●Standards:
IEC61010-1 MeasurementCATⅢ300V,pollutiondegree2
MeasurementCATⅡ600V,pollutiondegree2
IEC61010-031
IEC61326
●Methodofoperation:△∑method
●Indication:
LCDmaximumvalue3999(ACV,DCV,Ω,F)
units,symbols
●Overrangedisplay:
"OL"symbolisdisplayedontheLCD.
Incasethatthevalueisbeyondeffectivemeasuring
rangeat the position ofΩ function range and manual
range.
●Auto-ranging:
Rangeshiftstoupperrangewhenindicatedvalueis
morethan3999.Rangeshiftstolowerrangewhen
indicatedvalueislessthan360.
●Samplingrate: approx.400ms
●OperatingEnvironmentalconditions
−indooruse
−altitudeupto2000m
●
Temperature&Humidityrange(guaranteedaccuracy):
23℃±5℃ Relativehumidity:lessthan75%
●OperatingTemperature&Humidityrange:
0℃〜+40℃ Relativehumidity:lessthan80%
●StorageTemperature&Humidityrange:
-20℃〜+60℃ Relativehumidity:lessthan70%
●InsulationResistance:
Itshouldbemorethan10MΩ/DC1000Vbetween
electricalcircuitandenclosures.
●WithstandVoltage:
ItshouldbemorethanAC3700V/foroneminute
betweenelectricalcircuitandenclosures.
●OverloadProtection:
Voltagefunction: 720V(RMS.)10seconds
Resistancefunction: 250V(RMS.)10seconds
Diode/Continuity: 250V(RMS.)10seconds
Capacityfunction: 250V(RMS.)10seconds
Frequencyfunction:250V(RMS.)10seconds
●Dimensions: approx.107(L)x54(W)x10(D)mm
●Weight: approx.70g(includingbatteries)
●Powersource: TwoLR44(SR44)1.5Vorequivalent
●Accessories: TwoLR44(SR44)batteries
Portableholder
Instructionmanual
CAUTION
Thevoltageshownaboveisthe overloadprotection
(overvoltageprotection)fortheinstrument.
Makesurenottoexceedthevalueofvoltageshown
above.
4.InstrumentLayout
①FunctionSelectorSwitch ④DATAHOLDKey
②Display ⑤TestLeads
③SELECTKey
5.Preparation
5-1CheckingBatteryVoltage
SettheFunctionSelectorSwitchtootherpositions
excepttheOFFposition.
BatteryVoltageisenoughifindicationisclearandBT
symbolisnotindicatedinthisbout.
IfBTsymbolisindicatedornoindicationonthe
display,followtotheBatteryReplacementprocedures
showninitem9inthisdocumentandreplacewithnew
batteries.
INSTRUCTIONMANUAL
6.Measurements
6-1VoltageMeasurement(DCV,ACV)
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermakemeasurementonacircuitover600V
AC/DC.(electricalpotentialtoground300VAC/DC)
●DonotoperateFunctionSelectorSwitchduring
measurement.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
6-1-1DCVoltageMeasurement(DCV)
(1)SettheFunctionSelectorSwitchto" "position.
(Then, "AUTO"," "and"mV" symbols are indicated
onthedisplay.)
(2)Connectthe black test lead to the negative side of
thecircuitunderthetestandtheredtestleadtothe
positivesideofthecircuit,thenthemeasuredvalue
isindicatedonthe display. If you connect thetest
leadstheother way, "
- "symbolis indicated on the
display.
6-1-2ACVoltageMeasurement(ACV)
(1)SettheFunctionSelectorSwitchto" "position.
(Then,"AUTO"," ",and"V"symbolsareindicated
onthedisplay.)
(2)Connectthetestleadstothecircuitundertest.
Measuredvalueisindicatedonthedisplay.
Note)Evenif short-circuit theinputlineattherange of
AC4V,2〜5dgtmayremainindicated.
6-2ResistanceMeasurement
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuit inwhich
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
(1)SettheFunctionSelectorSwitchto"Ω"position.
(Then,"AUTO"and"MΩ"symbolsareindicatedon
thedisplay.)Makesurethatthe"OL"symbolis
indicatedon the display at thisbout, then short the
testleadtipsandcheck"0"isindicatedonthe
display.
(2)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.
Note)Evenifshortthetestleadtips,indicatedvaluemay
notbe "0". But this isbecause of the resistanceof
testleadsandnotafailure.
6-3ContinuityCheck/DiodeCheck
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuit inwhich
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
6-3-1ContinuityCheck
(1)SettheFunctionSelectorSwitchto" / "position.
(Then," "and Ω symbols are indicated on the
display.)
(2)Makesure that the"OL"symbol is indicated on the
displayatthisbout,thenshortthetestleadtipsand
check"0"isindicatedonthedisplayandcheckifthe
buzzerbeeps.
(3)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.The
buzzerbeepsbelowabout120Ω.
Note)Evenifshortthetestleadtips,indicatedvaluemay
notbe "0". But this isbecause of the resistanceof
testleadsandnotafailure.
6-3-2DiodeCheck
(1)SettheFunctionSelectorSwitchto" / "position.
(Then," "and"Ω"symbolsareindicatedonthe
display.)
(2)PresstheSELECTKeytwiceandsettheinstrument
toDiodeCheckmode.(Then," "and"V"
symbolsare indicated onthedisplay.)Makesure
thatthe "OL" symbol is indicatedon the display at
thisbout,thenshortthetestleadtipsandcheck"0"
isindicatedonthedisplay.
(3)Connectthe black testlead to the cathode sideof
theDiodeandtheredtestleadtotheanodesideof
theDiode.
ForwardvoltageofDiodeisindicatedonthedisplay.
(4)Connecttheblacktestleadtotheanodesideofthe
Diodeandtheredtestleadtothecathodesideofthe
Diode.Normally,"OL"symbolisindicatedonthe
display.
Conclusion:Diodeis OK if the instrument complieswith
aboveitems(3)and(4).
Note)Open-circuitvoltagebetweenmeasuringterminalsis
approx.1.5V.(measuringcurrentapprox.0.4mA)
6-4CapacitanceMeasurement
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuit inwhich
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
●Makesuretodischargethecapacitorbeforemaking
measurement.
(1)SettheFunctionSelectorSwitchto" "position.
(Then,"AUTO"and "nF" symbols are indicatedon
thedisplay.)
(2)PresstheSELECTkeyand"0"shallbeindicated.
(Then,"△"symbolisindicatedonthedisplay.)
(3)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.
Measuringunit"nF" / "uF" is automatically chosen
andindicatedduetothemeasuredvalue.
Note)Itmay take some time according to the measuring
capacitance.
Measuringcapacitance<4uFMeasuringtimeis
about2seconds
Measuringcapacitance < 40uF Measuringtimeis
about7seconds
Measuringcapacitance < 100uF Measuringtime is
about15seconds
6-5FrequencyMeasurement
DANGER
●Toavoid the dangerofgettingelectrical shocks,
nevermakemeasurementonacircuitover300V
AC/DC.(electricalpotentialtoground300VAC/DC)
●DonotoperateFunctionSelectorSwitchduring
measurement.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
FrequencycanbemeasuredatACVfunctionsby
pressing"Hz/DUTY"Switch.Concerningwiththe
directionforuseof"Hz/DUTY"Switch,please
referencetotheitem7-1Hz/DUTYinthisdocument.
Note)Theminimuminput canbemeasuredisapprox.
1.5V.
7.HowtouseFunctionSwitches
7-1SELECT,Hz/DUTYKey
Ateachfunction,theactionsofSELECT,Hz/DUTYkey
aredifferentsopleaserefertofollowingitemsandmake
activeuseofthem.
●ACVfunction
(AbovetwokeysactasHz/DUTYswitchkey.)
CapableofselectingtheVoltage,Frequencyor
DUTYmeasurementmode.
Attheinitialcondition,Voltagemeasurementhas
beenselectedfortheACVfunction.
Bypressing"Hz/DUTY"key,measuringmode
changes.
"Voltage"→ "Frequency"→ "DUTY"
●DCV,Ω andCapacitancemeasurement
(AbovetwokeysactasREL△ key.)
Indicatethedifferencebetweenmeasuredvalues.
Whenany function ("DCV", "Ω" and "Capacitance")
selected,themeasuredvaluecanbestoredby
pressingSELECT key and after that, the difference
betweenstoredvalueandmeasuringvalueis
indicatedonthedisplay
(△markiskeeplightingonthedisplaywhileavalue
isstored)
Thestoredvaluecanbereleasedbypressing
"SELECT"keyagain.
"Release"→ "Memory"
●Continuitycheck/Diodecheckfunction
(ChangebetweenContinuitycheckandDiodecheck)
At the initial condition, "Continuity check" mode has
beenselectedfortheContinuitycheck/Diodecheck
function.
Bypressing "SELECT"key,measuringmode
changes.
"Continuitycheck"→ "Diodecheck"
Therelativemeasurementisallowedinthefollowing
range.
*Measuringrange=Fullscalevalue at a range−
initialvalue
7-2DATAHOLDKey
Themeasuredvaluecanbeholdatallfunctions.
Bypressing "DATA HOLD" key,"DH"symbolindicated
onthedisplayandtheindicatedvaluecanbeheld.
Bypressing"DATAHOLD"keyagain,"DH"symbol
disappearsfromthedisplayandhelddataisreleased.
8.AutoPowerOff
Autopowerofffunctionoperateswhenabout15minutes
passedafterpoweronthisinstrument.WhenAuto
powerofffunctionoperatesandtheinstrumentpowered
off,the power-off statuereturns to normalby pressing
anykey.
9.BatteryReplacement
DANGER
●Neveropentheinstrumentcasewhenmaking
measurement.
●Toavoidgettingelectricalshock,besuretoremove
testleads from the instrumentwhenopeningthe
instrumentcaseinordertoreplacebatteries.
(1)RemovethePortableholderfromtheinstrument.
(2)Loosenone screw on the bottomof the instrument
andopenthebatterycover,thenreplacebatteries.
Battery:TwoLR44(SR44)1.5Vorequivalent
10.Maintenance
Useaclothdipped inwateror neutraldetergentfor
cleaningtheinstrument.Donotuseabrasivesor
solvents.
①
③
②
④
⑤
DISTRIBUTOR
KYORITSUELECTRICAL
INSTRUMENTSWORKS,LTD．
No.5-20,Nakane2
― chome,Meguro-ku,
Tokyo,152-0031Japan
Phone：81
― 3 ― 3723 ― 0131
Fax
：81 ― 3 ― 3723 ― 0152
URL：http://www.kew-ltd.co.jp
E-mail：[email protected]
Factories：Uwajima＆Ehime
Kyoritsureservestherightstochangespecifications
orDesignsdescribed in this manual without notice
andwithoutobligations.
CARDTYPEAUTORANGEDIGITALMULTIMETER
KEW1018
KYORITSUELECTRICALINSTRUMENTS
WORKS,LTD.TOKYO,JAPAN

1.SafetyWarnings
This instrument has been designed, manufactured and
testedaccordingtothefollowingstandards.
IEC61010-1MeasurementCATⅢ300VPollutiondegree2
IEC61010-031
IEC61326
Thisinstructionmanualcontainswarningsandsafety
ruleswhich must be observed by the usertoensure
safeoperation of the instrument andretainitinsafe
condition.Therefore,readthroughtheseoperating
instructionsbeforeusingtheinstrument.
WARNING
●Read through and understand instructions
containedin this manual beforestarting using the
instrument.
●Saveand keep the manual handy to enable quick
referencewhenevernecessary.
●Thisinstrumentshouldonlybe usedbysuitably
trainedpersonandbesuretofollowmeasurement
proceduresdescribedinthemanual.Kyoritsu
assumesno responsibility for damage andinjury
causedbymisuseornotfollowinginstructionsinthe
manual.
●Besure tounderstandandfollowall safety
instructionscontainedinthemanual.
Besuretoobservetheaboveinstructions.
Failuretofollowtheaboveinstructionsmaycause
injury, instrument damage and/or damage to
equipmentundertest.
Thesymbol indicatedontheinstrumentmeansthatthe
usermust refer torelatedpartsinthemanual for safe
operationoftheinstrument.
Besuretocarefullyreadtheinstructionsfollowing each
symbolinthemanual.
DANGER isreserved for conditionsand actions
thatarelikelytocauseseriousorfatalinjury.
WARNING isreservedforconditionsandactions
thatcancauseseriousorfatalinjury.
CAUTION is reserved for conditions and actions
thatcancauseinjuryorinstrumentdamage.
DANGER
●Nevermakemeasurementonthecircuitinwhich
electricalpotentialtogroundover300V AC/DC
exists.
●Donotattempttomakemeasurementinthe
presenceof flammablegasses.Otherwise,the
useoftheinstrumentmaycausesparking,which
canleadtoanexplosion.
●BesuretokeepyourfingersbehindtheFinger
barrierpartoftestlead.
●Neverattempttousetheinstrumentifitssurface
oryourhandiswet.
●Donotopen the instrument case when making
measurement.
WARNING
●Neverattempt to make any measurement if any
abnormalconditionsarenoted,suchasbroken
case,crackedtestleadsandexposedmetalparts.
●Do not turn the function selector switch with test
leadsconnectedtotheinstrument.
●Donotinstallsubstitutepartsormakeany
modificationtotheinstrument.
●Donottrytoreplacethebatteriesifthesurfaceof
theinstrumentiswet.
●Makesuretodisconnecttestleadsfromthe
deviceundertestwhenopeningthecasefor
batteryreplacement.
CAUTION
●Alwaysmakesuretocheck Functionswitchis
settingto the appropriate range beforestarting
measurement.
●Donotexpose the instrument to thedirectsun,
hightemperatureandhumidityordewfall.
●Whentheinstrumentwillnotebeinuseforalong
period,placeitinstorageafterremovingthe
batteries.
●Usea cloth dipped in water or neutraldetergent
forcleaningtheinstrument.Donotuseabrasives
orsolvents.
Pleaserefertofollowing explanation of the symbols
markedontheinstrumentorinthemanual.
●Symbols
： Ground ： AC ： DC
： ACandDC Ω： Resistance
： Diode ： Buzzer
： Capacitor Hz： Frequency
F： Doubleorreinforcedinsulation
● Measurement
CATⅡ： Primaryelectricalcircuitofequipment
withpowercordforconnectiontooutlet.
CATⅢ： Primary electrical circuit of the
equipment,whichissuppliedpowerfrom
adistributionboard,andcablerunfroma
distributionboardtoanoutlet.
2.Features
ThisisaDigitalMultiMeterprovidingmostportabilityby
meansof stowingtheinstrumentbodytogetherwith
probeinthenotebook-sizecover.
●Designedtointernationalsafetystandards.
IEC61010-1MeasurementCAT.Ⅲ300V
Pollutiondegree2
IEC61010-031
(probeassemblies)
●RELfunction to check the difference ofmeasured
values
●Autopowerofffunctiontosavebatteryconsumption
●Dataholdfunction
●DiodeandContinuitycheckfunction
●Auto-rangingfunction
●Frequencymeasurementfunction
●DUTYmeasurementfunction
(ExpressPulsewidth/Pulseperiodasapercentage)
3.Specification
●Measuringrangesandaccuracy
(23±5℃,underthe45%〜75%RH)
DCVFunction(5Autoranging):Inputimpedanceapprox.10MΩ
ACVFunction(4Autoranging):Inputimpedanceapprox.10MΩ
ResistanceFunction(6Autoranging)
Diodecheck/ContinuitycheckFunction
CapacityFunction(6Autoranging)
Frequency(6Autoranging)/DUTYFunction
Range
400mV
4V
40V
400V
600V
Measuringrange
0〜600V
Accuracy
±0.8%rdg±5dgt
±1.0%rdg±5dgt
Range
4V
40V
400V
600V
Measuringrange
0〜600V
Accuracy
±1.3%rdg±5dgt(50/60Hz)
±1.7%rdg±5dgt(〜400Hz)
±1.6%rdg±5dgt(50/60Hz)
±2.0%rdg±5dgt(〜400Hz)
Range
400Ω
4kΩ
40kΩ
400kΩ
4MΩ
40MΩ
Measuringrange
0〜40MΩ
Accuracy
±1.0%rdg±5dgt
±2.5%rdg±5dgt
Range
4nF
40nF
400nF
4uF
40uF
200uF
Measuringrange
〜200uF
Accuracy
±5.5%rdg±10dgt
±3.5%rdg±10dgt
±3.5%rdg±5dgt
±4.5%rdg±5dgt
Range
10Hz
100Hz
1000Hz
10kHz
100kHz
200kHz
DUTY
Measuringrange
〜200kHz
Inputsensitivity:
morethan1.5V(RMS)
Accuracy
±0.1%rdg±5dgt
0.1〜99.9%
(Pulsewidth/Pulseperiod)
±2.5%rdg±5dgt
Function
Diodecheck
Continuitycheck
Measuringrange
Testcurrentapprox.0.4mA
Buzzerbeepsbelowabout120Ω
Note:
*AtVoltagefunction,theAuto-rangingfunctionisreleased
bypressingtheSELECTkey.Tomeasureavoltage
again,turntheFunctionswitchtothe"OFF"position
once.ThensetittotheVoltagefunctionagain.
●Standards:
IEC61010-1 MeasurementCATⅢ300V,pollutiondegree2
MeasurementCATⅡ600V,pollutiondegree2
IEC61010-031
IEC61326
●Methodofoperation:△∑method
●Indication:
LCDmaximumvalue3999(ACV,DCV,Ω,F)
units,symbols
●Overrangedisplay:
"OL"symbolisdisplayedontheLCD.
Incasethatthevalue is beyond effective measuring
rangeat the positionof Ω function rangeand manual
range.
●Auto-ranging:
Rangeshiftstoupperrangewhenindicated value is
morethan3999.Rangeshiftstolower rangewhen
indicatedvalueislessthan360.
●Samplingrate: approx.400ms
●OperatingEnvironmentalconditions
−indooruse
−altitudeupto2000m
●
Temperature&Humidityrange(guaranteedaccuracy):
23℃±5℃ Relativehumidity:lessthan75%
●OperatingTemperature&Humidityrange:
0℃〜+40℃ Relativehumidity:lessthan80%
●StorageTemperature&Humidityrange:
-20℃〜+60℃ Relativehumidity:lessthan70%
●InsulationResistance:
Itshouldbemorethan10MΩ/DC1000Vbetween
electricalcircuitandenclosures.
●WithstandVoltage:
ItshouldbemorethanAC3700V/foroneminute
betweenelectricalcircuitandenclosures.
●OverloadProtection:
Voltagefunction: 720V(RMS.)10seconds
Resistancefunction: 250V(RMS.)10seconds
Diode/Continuity: 250V(RMS.)10seconds
Capacityfunction: 250V(RMS.)10seconds
Frequencyfunction:250V(RMS.)10seconds
●Dimensions: approx.107(L)x54(W)x10(D)mm
●Weight: approx.70g(includingbatteries)
●Powersource: TwoLR44(SR44)1.5Vorequivalent
●Accessories: TwoLR44(SR44)batteries
Portableholder
Instructionmanual
CAUTION
Thevoltageshownaboveistheoverload protection
(overvoltageprotection)fortheinstrument.
Makesurenottoexceedthevalueofvoltageshown
above.
4.InstrumentLayout
①FunctionSelectorSwitch ④DATAHOLDKey
②Display ⑤TestLeads
③SELECTKey
5.Preparation
5-1CheckingBatteryVoltage
SettheFunctionSelectorSwitchtoother positions
excepttheOFFposition.
BatteryVoltageisenoughifindicationisclearandBT
symbolisnotindicatedinthisbout.
IfBTsymbolisindicatedornoindicationonthe
display,followtotheBatteryReplacementprocedures
showninitem9inthisdocumentandreplacewithnew
batteries.
INSTRUCTIONMANUAL
6.Measurements
6-1VoltageMeasurement(DCV,ACV)
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermakemeasurementonacircuitover 600V
AC/DC.(electricalpotentialtoground300VAC/DC)
●DonotoperateFunctionSelectorSwitchduring
measurement.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
6-1-1DCVoltageMeasurement(DCV)
(1)SettheFunctionSelectorSwitchto" "position.
(Then, "AUTO"," "and"mV" symbols are indicated
onthedisplay.)
(2)Connectthe black test lead to thenegative side of
thecircuitunderthetestandtheredtestleadtothe
positivesideofthecircuit,thenthemeasuredvalue
isindicatedon the display. Ifyouconnect the test
leadstheother way, "
- "symbolis indicated on the
display.
6-1-2ACVoltageMeasurement(ACV)
(1)SettheFunctionSelectorSwitchto" "position.
(Then,"AUTO"," ",and"V"symbolsareindicated
onthedisplay.)
(2)Connectthetestleadstothecircuitundertest.
Measuredvalueisindicatedonthedisplay.
Note)Evenif short-circuit the input line attherangeof
AC4V,2〜5dgtmayremainindicated.
6-2ResistanceMeasurement
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuitin which
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
(1)SettheFunctionSelectorSwitchto"Ω"position.
(Then,"AUTO"and"MΩ"symbolsareindicatedon
thedisplay.)Makesurethatthe"OL"symbolis
indicatedon the display at this bout, then short the
testleadtipsandcheck"0"isindicatedonthe
display.
(2)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.
Note)Evenifshortthetestleadtips,indicatedvaluemay
notbe "0". But this is because ofthe resistance of
testleadsandnotafailure.
6-3ContinuityCheck/DiodeCheck
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuitin which
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
6-3-1ContinuityCheck
(1)SettheFunctionSelectorSwitchto" / "position.
(Then," "and Ω symbols are indicated on the
display.)
(2)Makesure thatthe "OL" symbol is indicatedon the
displayatthisbout,thenshortthetestleadtipsand
check"0"isindicatedonthedisplayandcheckifthe
buzzerbeeps.
(3)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.The
buzzerbeepsbelowabout120Ω.
Note)Evenifshortthetestleadtips,indicatedvaluemay
notbe "0". But this is because ofthe resistance of
testleadsandnotafailure.
6-3-2DiodeCheck
(1)SettheFunctionSelectorSwitchto" / "position.
(Then," "and"Ω"symbolsareindicatedonthe
display.)
(2)PresstheSELECTKeytwiceandsettheinstrument
toDiodeCheckmode.(Then," "and"V"
symbolsare indicated on the display.)Makesure
thatthe "OL" symbol isindicated on thedisplay at
thisbout,thenshortthetestleadtipsandcheck"0"
isindicatedonthedisplay.
(3)Connectthe blacktest lead to thecathode side of
theDiodeandtheredtestleadtotheanodesideof
theDiode.
ForwardvoltageofDiodeisindicatedonthedisplay.
(4)Connecttheblacktestleadtotheanodesideofthe
Diodeandtheredtestleadtothecathodesideofthe
Diode.Normally,"OL"symbolisindicatedonthe
display.
Conclusion:DiodeisOK if the instrument complies with
aboveitems(3)and(4).
Note)Open-circuitvoltagebetweenmeasuringterminalsis
approx.1.5V.(measuringcurrentapprox.0.4mA)
6-4CapacitanceMeasurement
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuitin which
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
●Makesuretodischargethecapacitorbeforemaking
measurement.
(1)SettheFunctionSelectorSwitchto" "position.
(Then,"AUTO"and "nF" symbolsareindicated on
thedisplay.)
(2)PresstheSELECTkeyand"0"shallbeindicated.
(Then,"△"symbolisindicatedonthedisplay.)
(3)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.
Measuringunit"nF" / "uF" isautomatically chosen
andindicatedduetothemeasuredvalue.
Note)Itmay take some time according to the measuring
capacitance.
Measuringcapacitance<4uFMeasuringtimeis
about2seconds
Measuringcapacitance < 40uF Measuring time is
about7seconds
Measuringcapacitance < 100uFMeasuring time is
about15seconds
6-5FrequencyMeasurement
DANGER
●Toavoid the dangerofgettingelectricalshocks,
nevermakemeasurementonacircuitover 300V
AC/DC.(electricalpotentialtoground300VAC/DC)
●DonotoperateFunctionSelectorSwitchduring
measurement.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
FrequencycanbemeasuredatACVfunctionsby
pressing"Hz/DUTY"Switch.Concerningwiththe
directionforuseof"Hz/DUTY"Switch,please
referencetotheitem7-1Hz/DUTYinthisdocument.
Note)Theminimuminputcanbemeasuredisapprox.
1.5V.
7.HowtouseFunctionSwitches
7-1SELECT,Hz/DUTYKey
Ateachfunction,theactionsofSELECT,Hz/DUTYkey
aredifferentsopleaserefertofollowingitemsandmake
activeuseofthem.
●ACVfunction
(AbovetwokeysactasHz/DUTYswitchkey.)
CapableofselectingtheVoltage,Frequencyor
DUTYmeasurementmode.
Attheinitialcondition,Voltage measurementhas
beenselectedfortheACVfunction.
Bypressing"Hz/DUTY"key,measuringmode
changes.
"Voltage"→ "Frequency"→ "DUTY"
●DCV,Ω andCapacitancemeasurement
(AbovetwokeysactasREL△ key.)
Indicatethedifferencebetweenmeasuredvalues.
Whenany function ("DCV", "Ω" and "Capacitance")
selected,themeasuredvaluecanbestoredby
pressingSELECT key and after that, the difference
betweenstoredvalueandmeasuringvalueis
indicatedonthedisplay
(△markiskeeplightingonthedisplaywhileavalue
isstored)
Thestoredvaluecanbereleasedbypressing
"SELECT"keyagain.
"Release"→ "Memory"
●Continuitycheck/Diodecheckfunction
(ChangebetweenContinuitycheckandDiodecheck)
At the initial condition, "Continuity check" mode has
beenselectedfortheContinuitycheck/Diodecheck
function.
Bypressing "SELECT"key,measuringmode
changes.
"Continuitycheck"→ "Diodecheck"
Therelativemeasurementisallowedinthefollowing
range.
*Measuringrange =Fullscalevalueatarange−
initialvalue
7-2DATAHOLDKey
Themeasuredvaluecanbeholdatallfunctions.
Bypressing "DATA HOLD" key, "DH" symbolindicated
onthedisplayandtheindicatedvaluecanbeheld.
Bypressing"DATAHOLD"keyagain,"DH"symbol
disappearsfromthedisplayandhelddataisreleased.
8.AutoPowerOff
Autopowerofffunctionoperateswhenabout15minutes
passedafterpoweronthisinstrument.WhenAuto
powerofffunctionoperatesandtheinstrumentpowered
off,the power-off statue returns to normal by pressing
anykey.
9.BatteryReplacement
DANGER
●Neveropentheinstrumentcasewhenmaking
measurement.
●Toavoidgettingelectricalshock,besuretoremove
testleads from the instrument when opening the
instrumentcaseinordertoreplacebatteries.
(1)RemovethePortableholderfromtheinstrument.
(2)Loosenone screw on thebottom of the instrument
andopenthebatterycover,thenreplacebatteries.
Battery:TwoLR44(SR44)1.5Vorequivalent
10.Maintenance
Useaclothdippedin waterorneutral detergentfor
cleaningtheinstrument.Donotuseabrasivesor
solvents.
①
③
②
④
⑤
DISTRIBUTOR
KYORITSUELECTRICAL
INSTRUMENTSWORKS,LTD．
No.5-20,Nakane2
― chome,Meguro-ku,
Tokyo,152-0031Japan
Phone：81
― 3 ― 3723 ― 0131
Fax
：81 ― 3 ― 3723 ― 0152
URL：http://www.kew-ltd.co.jp
E-mail：[email protected]
Factories：Uwajima＆Ehime
Kyoritsureservestherightstochangespecifications
orDesignsdescribed in this manualwithout notice
andwithoutobligations.
CARDTYPEAUTORANGEDIGITALMULTIMETER
KEW1018
KYORITSUELECTRICALINSTRUMENTS
WORKS,LTD.TOKYO,JAPAN

1.SafetyWarnings
This instrument has been designed, manufactured and
testedaccordingtothefollowingstandards.
IEC61010-1MeasurementCATⅢ300VPollutiondegree2
IEC61010-031
IEC61326
Thisinstructionmanualcontainswarningsandsafety
ruleswhich must be observedbytheuserto ensure
safeoperation of theinstrumentandretainit in safe
condition.Therefore,readthroughtheseoperating
instructionsbeforeusingtheinstrument.
WARNING
●Read through and understand instructions
containedinthis manual before startingusingthe
instrument.
●Saveand keep the manual handy to enable quick
referencewhenevernecessary.
●Thisinstrumentshouldonlybeusedby suitably
trainedpersonandbesureto follow measurement
proceduresdescribedinthemanual.Kyoritsu
assumesno responsibility fordamageandinjury
causedbymisuseornotfollowinginstructionsinthe
manual.
●Besure tounderstandandfollow allsafety
instructionscontainedinthemanual.
Besuretoobservetheaboveinstructions.
Failuretofollowthe aboveinstructionsmaycause
injury, instrument damage and/or damage to
equipmentundertest.
Thesymbol indicatedontheinstrumentmeansthatthe
usermust refertorelatedpartsin themanualforsafe
operationoftheinstrument.
Besuretocarefullyreadtheinstructionsfollowing each
symbolinthemanual.
DANGER isreserved for conditions and actions
thatarelikelytocauseseriousorfatalinjury.
WARNING isreservedforconditionsandactions
thatcancauseseriousorfatalinjury.
CAUTION is reserved for conditions and actions
thatcancauseinjuryorinstrumentdamage.
DANGER
●Nevermakemeasurementonthecircuitinwhich
electricalpotential to ground over 300V AC/DC
exists.
●Donotattempttomakemeasurementinthe
presenceofflammablegasses.Otherwise, the
useoftheinstrumentmaycausesparking,which
canleadtoanexplosion.
●Besureto keep your fingers behind the Finger
barrierpartoftestlead.
●Neverattempttousetheinstrumentifitssurface
oryourhandiswet.
●Donot open the instrument casewhenmaking
measurement.
WARNING
●Neverattempt to make any measurementif any
abnormalconditions are noted, such as broken
case,crackedtestleadsandexposedmetalparts.
●Do not turn the function selector switch with test
leadsconnectedtotheinstrument.
●Donotinstallsubstitutepartsormakeany
modificationtotheinstrument.
●Donottrytoreplacethebatteriesifthesurfaceof
theinstrumentiswet.
●Makesuretodisconnecttestleadsfromthe
deviceundertestwhenopeningthecasefor
batteryreplacement.
CAUTION
●Alwaysmakesureto checkFunctionswitch is
settingto the appropriaterangebeforestarting
measurement.
●Donotexposetheinstrument to the direct sun,
hightemperatureandhumidityordewfall.
●Whentheinstrumentwillnotebeinuseforalong
period,placeitinstorageafterremovingthe
batteries.
●Usea cloth dippedin water or neutral detergent
forcleaningtheinstrument.Donotuseabrasives
orsolvents.
Pleaserefertofollowingexplanationofthesymbols
markedontheinstrumentorinthemanual.
●Symbols
： Ground ： AC ： DC
： ACandDC Ω： Resistance
： Diode ： Buzzer
： Capacitor Hz： Frequency
F： Doubleorreinforcedinsulation
● Measurement
CATⅡ： Primaryelectricalcircuitofequipment
withpowercordforconnectiontooutlet.
CATⅢ： Primary electrical circuit of the
equipment,whichissuppliedpowerfrom
adistributionboard,andcablerunfroma
distributionboardtoanoutlet.
2.Features
ThisisaDigitalMultiMeterprovidingmostportabilityby
meansofstowingtheinstrumentbodytogetherwith
probeinthenotebook-sizecover.
●Designedtointernationalsafetystandards.
IEC61010-1MeasurementCAT.Ⅲ300V
Pollutiondegree2
IEC61010-031
(probeassemblies)
●RELfunction to check thedifferenceofmeasured
values
●Autopowerofffunctiontosavebatteryconsumption
●Dataholdfunction
●DiodeandContinuitycheckfunction
●Auto-rangingfunction
●Frequencymeasurementfunction
●DUTYmeasurementfunction
(ExpressPulsewidth/Pulseperiodasapercentage)
3.Specification
●Measuringrangesandaccuracy
(23±5℃,underthe45%〜75%RH)
DCVFunction(5Autoranging):Inputimpedanceapprox.10MΩ
ACVFunction(4Autoranging):Inputimpedanceapprox.10MΩ
ResistanceFunction(6Autoranging)
Diodecheck/ContinuitycheckFunction
CapacityFunction(6Autoranging)
Frequency(6Autoranging)/DUTYFunction
Range
400mV
4V
40V
400V
600V
Measuringrange
0〜600V
Accuracy
±0.8%rdg±5dgt
±1.0%rdg±5dgt
Range
4V
40V
400V
600V
Measuringrange
0〜600V
Accuracy
±1.3%rdg±5dgt(50/60Hz)
±1.7%rdg±5dgt(〜400Hz)
±1.6%rdg±5dgt(50/60Hz)
±2.0%rdg±5dgt(〜400Hz)
Range
400Ω
4kΩ
40kΩ
400kΩ
4MΩ
40MΩ
Measuringrange
0〜40MΩ
Accuracy
±1.0%rdg±5dgt
±2.5%rdg±5dgt
Range
4nF
40nF
400nF
4uF
40uF
200uF
Measuringrange
〜200uF
Accuracy
±5.5%rdg±10dgt
±3.5%rdg±10dgt
±3.5%rdg±5dgt
±4.5%rdg±5dgt
Range
10Hz
100Hz
1000Hz
10kHz
100kHz
200kHz
DUTY
Measuringrange
〜200kHz
Inputsensitivity:
morethan1.5V(RMS)
Accuracy
±0.1%rdg±5dgt
0.1〜99.9%
(Pulsewidth/Pulseperiod)
±2.5%rdg±5dgt
Function
Diodecheck
Continuitycheck
Measuringrange
Testcurrentapprox.0.4mA
Buzzerbeepsbelowabout120Ω
Note:
*AtVoltagefunction,theAuto-rangingfunctionisreleased
bypressingtheSELECTkey.Tomeasureavoltage
again,turntheFunctionswitchtothe"OFF"position
once.ThensetittotheVoltagefunctionagain.
●Standards:
IEC61010-1 MeasurementCATⅢ300V,pollutiondegree2
MeasurementCATⅡ600V,pollutiondegree2
IEC61010-031
IEC61326
●Methodofoperation:△∑method
●Indication:
LCDmaximumvalue3999(ACV,DCV,Ω,F)
units,symbols
●Overrangedisplay:
"OL"symbolisdisplayedontheLCD.
Incasethatthevalueisbeyondeffectivemeasuring
rangeat the position ofΩ function range and manual
range.
●Auto-ranging:
Rangeshiftstoupperrangewhenindicatedvalueis
morethan3999.Rangeshiftstolowerrangewhen
indicatedvalueislessthan360.
●Samplingrate: approx.400ms
●OperatingEnvironmentalconditions
−indooruse
−altitudeupto2000m
●
Temperature&Humidityrange(guaranteedaccuracy):
23℃±5℃ Relativehumidity:lessthan75%
●OperatingTemperature&Humidityrange:
0℃〜+40℃ Relativehumidity:lessthan80%
●StorageTemperature&Humidityrange:
-20℃〜+60℃ Relativehumidity:lessthan70%
●InsulationResistance:
Itshouldbemorethan10MΩ/DC1000Vbetween
electricalcircuitandenclosures.
●WithstandVoltage:
ItshouldbemorethanAC3700V/foroneminute
betweenelectricalcircuitandenclosures.
●OverloadProtection:
Voltagefunction: 720V(RMS.)10seconds
Resistancefunction: 250V(RMS.)10seconds
Diode/Continuity: 250V(RMS.)10seconds
Capacityfunction: 250V(RMS.)10seconds
Frequencyfunction:250V(RMS.)10seconds
●Dimensions: approx.107(L)x54(W)x10(D)mm
●Weight: approx.70g(includingbatteries)
●Powersource: TwoLR44(SR44)1.5Vorequivalent
●Accessories: TwoLR44(SR44)batteries
Portableholder
Instructionmanual
CAUTION
Thevoltageshownaboveisthe overloadprotection
(overvoltageprotection)fortheinstrument.
Makesurenottoexceedthevalueofvoltageshown
above.
4.InstrumentLayout
①FunctionSelectorSwitch ④DATAHOLDKey
②Display ⑤TestLeads
③SELECTKey
5.Preparation
5-1CheckingBatteryVoltage
SettheFunctionSelectorSwitchtootherpositions
excepttheOFFposition.
BatteryVoltageisenoughifindicationisclearandBT
symbolisnotindicatedinthisbout.
IfBTsymbolisindicatedornoindicationonthe
display,followtotheBatteryReplacementprocedures
showninitem9inthisdocumentandreplacewithnew
batteries.
INSTRUCTIONMANUAL
6.Measurements
6-1VoltageMeasurement(DCV,ACV)
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermakemeasurementonacircuitover600V
AC/DC.(electricalpotentialtoground300VAC/DC)
●DonotoperateFunctionSelectorSwitchduring
measurement.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
6-1-1DCVoltageMeasurement(DCV)
(1)SettheFunctionSelectorSwitchto" "position.
(Then, "AUTO"," "and"mV" symbols are indicated
onthedisplay.)
(2)Connectthe black test lead to the negative side of
thecircuitunderthetestandtheredtestleadtothe
positivesideofthecircuit,thenthemeasuredvalue
isindicatedonthe display. If you connect thetest
leadstheother way, "
- "symbolis indicated on the
display.
6-1-2ACVoltageMeasurement(ACV)
(1)SettheFunctionSelectorSwitchto" "position.
(Then,"AUTO"," ",and"V"symbolsareindicated
onthedisplay.)
(2)Connectthetestleadstothecircuitundertest.
Measuredvalueisindicatedonthedisplay.
Note)Evenif short-circuit theinputlineattherange of
AC4V,2〜5dgtmayremainindicated.
6-2ResistanceMeasurement
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuit inwhich
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
(1)SettheFunctionSelectorSwitchto"Ω"position.
(Then,"AUTO"and"MΩ"symbolsareindicatedon
thedisplay.)Makesurethatthe"OL"symbolis
indicatedon the display at thisbout, then short the
testleadtipsandcheck"0"isindicatedonthe
display.
(2)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.
Note)Evenifshortthetestleadtips,indicatedvaluemay
notbe "0". But this isbecause of the resistanceof
testleadsandnotafailure.
6-3ContinuityCheck/DiodeCheck
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuit inwhich
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
6-3-1ContinuityCheck
(1)SettheFunctionSelectorSwitchto" / "position.
(Then," "and Ω symbols are indicated on the
display.)
(2)Makesure that the"OL"symbol is indicated on the
displayatthisbout,thenshortthetestleadtipsand
check"0"isindicatedonthedisplayandcheckifthe
buzzerbeeps.
(3)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.The
buzzerbeepsbelowabout120Ω.
Note)Evenifshortthetestleadtips,indicatedvaluemay
notbe "0". But this isbecause of the resistanceof
testleadsandnotafailure.
6-3-2DiodeCheck
(1)SettheFunctionSelectorSwitchto" / "position.
(Then," "and"Ω"symbolsareindicatedonthe
display.)
(2)PresstheSELECTKeytwiceandsettheinstrument
toDiodeCheckmode.(Then," "and"V"
symbolsare indicated onthedisplay.)Makesure
thatthe "OL" symbol is indicatedon the display at
thisbout,thenshortthetestleadtipsandcheck"0"
isindicatedonthedisplay.
(3)Connectthe black testlead to the cathode sideof
theDiodeandtheredtestleadtotheanodesideof
theDiode.
ForwardvoltageofDiodeisindicatedonthedisplay.
(4)Connecttheblacktestleadtotheanodesideofthe
Diodeandtheredtestleadtothecathodesideofthe
Diode.Normally,"OL"symbolisindicatedonthe
display.
Conclusion:Diodeis OK if the instrument complieswith
aboveitems(3)and(4).
Note)Open-circuitvoltagebetweenmeasuringterminalsis
approx.1.5V.(measuringcurrentapprox.0.4mA)
6-4CapacitanceMeasurement
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuit inwhich
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
●Makesuretodischargethecapacitorbeforemaking
measurement.
(1)SettheFunctionSelectorSwitchto" "position.
(Then,"AUTO"and "nF" symbols are indicatedon
thedisplay.)
(2)PresstheSELECTkeyand"0"shallbeindicated.
(Then,"△"symbolisindicatedonthedisplay.)
(3)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.
Measuringunit"nF" / "uF" is automatically chosen
andindicatedduetothemeasuredvalue.
Note)Itmay take some time according to the measuring
capacitance.
Measuringcapacitance<4uFMeasuringtimeis
about2seconds
Measuringcapacitance < 40uF Measuringtimeis
about7seconds
Measuringcapacitance < 100uF Measuringtime is
about15seconds
6-5FrequencyMeasurement
DANGER
●Toavoid the dangerofgettingelectrical shocks,
nevermakemeasurementonacircuitover300V
AC/DC.(electricalpotentialtoground300VAC/DC)
●DonotoperateFunctionSelectorSwitchduring
measurement.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
FrequencycanbemeasuredatACVfunctionsby
pressing"Hz/DUTY"Switch.Concerningwiththe
directionforuseof"Hz/DUTY"Switch,please
referencetotheitem7-1Hz/DUTYinthisdocument.
Note)Theminimuminput canbemeasuredisapprox.
1.5V.
7.HowtouseFunctionSwitches
7-1SELECT,Hz/DUTYKey
Ateachfunction,theactionsofSELECT,Hz/DUTYkey
aredifferentsopleaserefertofollowingitemsandmake
activeuseofthem.
●ACVfunction
(AbovetwokeysactasHz/DUTYswitchkey.)
CapableofselectingtheVoltage,Frequencyor
DUTYmeasurementmode.
Attheinitialcondition,Voltagemeasurementhas
beenselectedfortheACVfunction.
Bypressing"Hz/DUTY"key,measuringmode
changes.
"Voltage"→ "Frequency"→ "DUTY"
●DCV,Ω andCapacitancemeasurement
(AbovetwokeysactasREL△ key.)
Indicatethedifferencebetweenmeasuredvalues.
Whenany function ("DCV", "Ω" and "Capacitance")
selected,themeasuredvaluecanbestoredby
pressingSELECT key and after that, the difference
betweenstoredvalueandmeasuringvalueis
indicatedonthedisplay
(△markiskeeplightingonthedisplaywhileavalue
isstored)
Thestoredvaluecanbereleasedbypressing
"SELECT"keyagain.
"Release"→ "Memory"
●Continuitycheck/Diodecheckfunction
(ChangebetweenContinuitycheckandDiodecheck)
At the initial condition, "Continuity check" mode has
beenselectedfortheContinuitycheck/Diodecheck
function.
Bypressing "SELECT"key,measuringmode
changes.
"Continuitycheck"→ "Diodecheck"
Therelativemeasurementisallowedinthefollowing
range.
*Measuringrange=Fullscalevalue at a range−
initialvalue
7-2DATAHOLDKey
Themeasuredvaluecanbeholdatallfunctions.
Bypressing "DATA HOLD" key,"DH"symbolindicated
onthedisplayandtheindicatedvaluecanbeheld.
Bypressing"DATAHOLD"keyagain,"DH"symbol
disappearsfromthedisplayandhelddataisreleased.
8.AutoPowerOff
Autopowerofffunctionoperateswhenabout15minutes
passedafterpoweronthisinstrument.WhenAuto
powerofffunctionoperatesandtheinstrumentpowered
off,the power-off statuereturns to normalby pressing
anykey.
9.BatteryReplacement
DANGER
●Neveropentheinstrumentcasewhenmaking
measurement.
●Toavoidgettingelectricalshock,besuretoremove
testleads from the instrumentwhenopeningthe
instrumentcaseinordertoreplacebatteries.
(1)RemovethePortableholderfromtheinstrument.
(2)Loosenone screw on the bottomof the instrument
andopenthebatterycover,thenreplacebatteries.
Battery:TwoLR44(SR44)1.5Vorequivalent
10.Maintenance
Useaclothdipped inwateror neutraldetergentfor
cleaningtheinstrument.Donotuseabrasivesor
solvents.
①
③
②
④
⑤
DISTRIBUTOR
KYORITSUELECTRICAL
INSTRUMENTSWORKS,LTD．
No.5-20,Nakane2
― chome,Meguro-ku,
Tokyo,152-0031Japan
Phone：81
― 3 ― 3723 ― 0131
Fax
：81 ― 3 ― 3723 ― 0152
URL：http://www.kew-ltd.co.jp
E-mail：[email protected]
Factories：Uwajima＆Ehime
Kyoritsureservestherightstochangespecifications
orDesignsdescribed in this manual without notice
andwithoutobligations.
CARDTYPEAUTORANGEDIGITALMULTIMETER
KEW1018
KYORITSUELECTRICALINSTRUMENTS
WORKS,LTD.TOKYO,JAPAN

1.SafetyWarnings
This instrument has been designed, manufactured and
testedaccordingtothefollowingstandards.
IEC61010-1MeasurementCATⅢ300VPollutiondegree2
IEC61010-031
IEC61326
Thisinstructionmanualcontainswarningsandsafety
ruleswhich must be observedbytheuserto ensure
safeoperation of theinstrumentandretainit in safe
condition.Therefore,readthroughtheseoperating
instructionsbeforeusingtheinstrument.
WARNING
●Read through and understand instructions
containedinthis manual before startingusingthe
instrument.
●Saveand keep the manual handy to enable quick
referencewhenevernecessary.
●Thisinstrumentshouldonlybeusedby suitably
trainedpersonandbesureto follow measurement
proceduresdescribedinthemanual.Kyoritsu
assumesno responsibility fordamageandinjury
causedbymisuseornotfollowinginstructionsinthe
manual.
●Besure tounderstandandfollow allsafety
instructionscontainedinthemanual.
Besuretoobservetheaboveinstructions.
Failuretofollowthe aboveinstructionsmaycause
injury, instrument damage and/or damage to
equipmentundertest.
Thesymbol indicatedontheinstrumentmeansthatthe
usermust refertorelatedpartsin themanualforsafe
operationoftheinstrument.
Besuretocarefullyreadtheinstructionsfollowing each
symbolinthemanual.
DANGER isreserved for conditions and actions
thatarelikelytocauseseriousorfatalinjury.
WARNING isreservedforconditionsandactions
thatcancauseseriousorfatalinjury.
CAUTION is reserved for conditions and actions
thatcancauseinjuryorinstrumentdamage.
DANGER
●Nevermakemeasurementonthecircuitinwhich
electricalpotential to ground over 300V AC/DC
exists.
●Donotattempttomakemeasurementinthe
presenceofflammablegasses.Otherwise, the
useoftheinstrumentmaycausesparking,which
canleadtoanexplosion.
●Besureto keep your fingers behind the Finger
barrierpartoftestlead.
●Neverattempttousetheinstrumentifitssurface
oryourhandiswet.
●Donot open the instrument casewhenmaking
measurement.
WARNING
●Neverattempt to make any measurementif any
abnormalconditions are noted, such as broken
case,crackedtestleadsandexposedmetalparts.
●Do not turn the function selector switch with test
leadsconnectedtotheinstrument.
●Donotinstallsubstitutepartsormakeany
modificationtotheinstrument.
●Donottrytoreplacethebatteriesifthesurfaceof
theinstrumentiswet.
●Makesuretodisconnecttestleadsfromthe
deviceundertestwhenopeningthecasefor
batteryreplacement.
CAUTION
●Alwaysmakesureto checkFunctionswitch is
settingto the appropriaterangebeforestarting
measurement.
●Donotexposetheinstrument to the direct sun,
hightemperatureandhumidityordewfall.
●Whentheinstrumentwillnotebeinuseforalong
period,placeitinstorageafterremovingthe
batteries.
●Usea cloth dippedin water or neutral detergent
forcleaningtheinstrument.Donotuseabrasives
orsolvents.
Pleaserefertofollowingexplanationofthesymbols
markedontheinstrumentorinthemanual.
●Symbols
： Ground ： AC ： DC
： ACandDC Ω： Resistance
： Diode ： Buzzer
： Capacitor Hz： Frequency
F： Doubleorreinforcedinsulation
● Measurement
CATⅡ： Primaryelectricalcircuitofequipment
withpowercordforconnectiontooutlet.
CATⅢ： Primary electrical circuit of the
equipment,whichissuppliedpowerfrom
adistributionboard,andcablerunfroma
distributionboardtoanoutlet.
2.Features
ThisisaDigitalMultiMeterprovidingmostportabilityby
meansofstowingtheinstrumentbodytogetherwith
probeinthenotebook-sizecover.
●Designedtointernationalsafetystandards.
IEC61010-1MeasurementCAT.Ⅲ300V
Pollutiondegree2
IEC61010-031
(probeassemblies)
●RELfunction to check thedifferenceofmeasured
values
●Autopowerofffunctiontosavebatteryconsumption
●Dataholdfunction
●DiodeandContinuitycheckfunction
●Auto-rangingfunction
●Frequencymeasurementfunction
●DUTYmeasurementfunction
(ExpressPulsewidth/Pulseperiodasapercentage)
3.Specification
●Measuringrangesandaccuracy
(23±5℃,underthe45%〜75%RH)
DCVFunction(5Autoranging):Inputimpedanceapprox.10MΩ
ACVFunction(4Autoranging):Inputimpedanceapprox.10MΩ
ResistanceFunction(6Autoranging)
Diodecheck/ContinuitycheckFunction
CapacityFunction(6Autoranging)
Frequency(6Autoranging)/DUTYFunction
Range
400mV
4V
40V
400V
600V
Measuringrange
0〜600V
Accuracy
±0.8%rdg±5dgt
±1.0%rdg±5dgt
Range
4V
40V
400V
600V
Measuringrange
0〜600V
Accuracy
±1.3%rdg±5dgt(50/60Hz)
±1.7%rdg±5dgt(〜400Hz)
±1.6%rdg±5dgt(50/60Hz)
±2.0%rdg±5dgt(〜400Hz)
Range
400Ω
4kΩ
40kΩ
400kΩ
4MΩ
40MΩ
Measuringrange
0〜40MΩ
Accuracy
±1.0%rdg±5dgt
±2.5%rdg±5dgt
Range
4nF
40nF
400nF
4uF
40uF
200uF
Measuringrange
〜200uF
Accuracy
±5.5%rdg±10dgt
±3.5%rdg±10dgt
±3.5%rdg±5dgt
±4.5%rdg±5dgt
Range
10Hz
100Hz
1000Hz
10kHz
100kHz
200kHz
DUTY
Measuringrange
〜200kHz
Inputsensitivity:
morethan1.5V(RMS)
Accuracy
±0.1%rdg±5dgt
0.1〜99.9%
(Pulsewidth/Pulseperiod)
±2.5%rdg±5dgt
Function
Diodecheck
Continuitycheck
Measuringrange
Testcurrentapprox.0.4mA
Buzzerbeepsbelowabout120Ω
Note:
*AtVoltagefunction,theAuto-rangingfunctionisreleased
bypressingtheSELECTkey.Tomeasureavoltage
again,turntheFunctionswitchtothe"OFF"position
once.ThensetittotheVoltagefunctionagain.
●Standards:
IEC61010-1 MeasurementCATⅢ300V,pollutiondegree2
MeasurementCATⅡ600V,pollutiondegree2
IEC61010-031
IEC61326
●Methodofoperation:△∑method
●Indication:
LCDmaximumvalue3999(ACV,DCV,Ω,F)
units,symbols
●Overrangedisplay:
"OL"symbolisdisplayedontheLCD.
Incasethatthevalueisbeyondeffectivemeasuring
rangeat the position ofΩ function range and manual
range.
●Auto-ranging:
Rangeshiftstoupperrangewhenindicatedvalueis
morethan3999.Rangeshiftstolowerrangewhen
indicatedvalueislessthan360.
●Samplingrate: approx.400ms
●OperatingEnvironmentalconditions
−indooruse
−altitudeupto2000m
●
Temperature&Humidityrange(guaranteedaccuracy):
23℃±5℃ Relativehumidity:lessthan75%
●OperatingTemperature&Humidityrange:
0℃〜+40℃ Relativehumidity:lessthan80%
●StorageTemperature&Humidityrange:
-20℃〜+60℃ Relativehumidity:lessthan70%
●InsulationResistance:
Itshouldbemorethan10MΩ/DC1000Vbetween
electricalcircuitandenclosures.
●WithstandVoltage:
ItshouldbemorethanAC3700V/foroneminute
betweenelectricalcircuitandenclosures.
●OverloadProtection:
Voltagefunction: 720V(RMS.)10seconds
Resistancefunction: 250V(RMS.)10seconds
Diode/Continuity: 250V(RMS.)10seconds
Capacityfunction: 250V(RMS.)10seconds
Frequencyfunction:250V(RMS.)10seconds
●Dimensions: approx.107(L)x54(W)x10(D)mm
●Weight: approx.70g(includingbatteries)
●Powersource: TwoLR44(SR44)1.5Vorequivalent
●Accessories: TwoLR44(SR44)batteries
Portableholder
Instructionmanual
CAUTION
Thevoltageshownaboveisthe overloadprotection
(overvoltageprotection)fortheinstrument.
Makesurenottoexceedthevalueofvoltageshown
above.
4.InstrumentLayout
①FunctionSelectorSwitch ④DATAHOLDKey
②Display ⑤TestLeads
③SELECTKey
5.Preparation
5-1CheckingBatteryVoltage
SettheFunctionSelectorSwitchtootherpositions
excepttheOFFposition.
BatteryVoltageisenoughifindicationisclearandBT
symbolisnotindicatedinthisbout.
IfBTsymbolisindicatedornoindicationonthe
display,followtotheBatteryReplacementprocedures
showninitem9inthisdocumentandreplacewithnew
batteries.
INSTRUCTIONMANUAL
6.Measurements
6-1VoltageMeasurement(DCV,ACV)
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermakemeasurementonacircuitover600V
AC/DC.(electricalpotentialtoground300VAC/DC)
●DonotoperateFunctionSelectorSwitchduring
measurement.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
6-1-1DCVoltageMeasurement(DCV)
(1)SettheFunctionSelectorSwitchto" "position.
(Then, "AUTO"," "and"mV" symbols are indicated
onthedisplay.)
(2)Connectthe black test lead to the negative side of
thecircuitunderthetestandtheredtestleadtothe
positivesideofthecircuit,thenthemeasuredvalue
isindicatedonthe display. If you connect thetest
leadstheother way, "
- "symbolis indicated on the
display.
6-1-2ACVoltageMeasurement(ACV)
(1)SettheFunctionSelectorSwitchto" "position.
(Then,"AUTO"," ",and"V"symbolsareindicated
onthedisplay.)
(2)Connectthetestleadstothecircuitundertest.
Measuredvalueisindicatedonthedisplay.
Note)Evenif short-circuit theinputlineattherange of
AC4V,2〜5dgtmayremainindicated.
6-2ResistanceMeasurement
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuit inwhich
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
(1)SettheFunctionSelectorSwitchto"Ω"position.
(Then,"AUTO"and"MΩ"symbolsareindicatedon
thedisplay.)Makesurethatthe"OL"symbolis
indicatedon the display at thisbout, then short the
testleadtipsandcheck"0"isindicatedonthe
display.
(2)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.
Note)Evenifshortthetestleadtips,indicatedvaluemay
notbe "0". But this isbecause of the resistanceof
testleadsandnotafailure.
6-3ContinuityCheck/DiodeCheck
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuit inwhich
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
6-3-1ContinuityCheck
(1)SettheFunctionSelectorSwitchto" / "position.
(Then," "and Ω symbols are indicated on the
display.)
(2)Makesure that the"OL"symbol is indicated on the
displayatthisbout,thenshortthetestleadtipsand
check"0"isindicatedonthedisplayandcheckifthe
buzzerbeeps.
(3)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.The
buzzerbeepsbelowabout120Ω.
Note)Evenifshortthetestleadtips,indicatedvaluemay
notbe "0". But this isbecause of the resistanceof
testleadsandnotafailure.
6-3-2DiodeCheck
(1)SettheFunctionSelectorSwitchto" / "position.
(Then," "and"Ω"symbolsareindicatedonthe
display.)
(2)PresstheSELECTKeytwiceandsettheinstrument
toDiodeCheckmode.(Then," "and"V"
symbolsare indicated onthedisplay.)Makesure
thatthe "OL" symbol is indicatedon the display at
thisbout,thenshortthetestleadtipsandcheck"0"
isindicatedonthedisplay.
(3)Connectthe black testlead to the cathode sideof
theDiodeandtheredtestleadtotheanodesideof
theDiode.
ForwardvoltageofDiodeisindicatedonthedisplay.
(4)Connecttheblacktestleadtotheanodesideofthe
Diodeandtheredtestleadtothecathodesideofthe
Diode.Normally,"OL"symbolisindicatedonthe
display.
Conclusion:Diodeis OK if the instrument complieswith
aboveitems(3)and(4).
Note)Open-circuitvoltagebetweenmeasuringterminalsis
approx.1.5V.(measuringcurrentapprox.0.4mA)
6-4CapacitanceMeasurement
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuit inwhich
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
●Makesuretodischargethecapacitorbeforemaking
measurement.
(1)SettheFunctionSelectorSwitchto" "position.
(Then,"AUTO"and "nF" symbols are indicatedon
thedisplay.)
(2)PresstheSELECTkeyand"0"shallbeindicated.
(Then,"△"symbolisindicatedonthedisplay.)
(3)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.
Measuringunit"nF" / "uF" is automatically chosen
andindicatedduetothemeasuredvalue.
Note)Itmay take some time according to the measuring
capacitance.
Measuringcapacitance<4uFMeasuringtimeis
about2seconds
Measuringcapacitance < 40uF Measuringtimeis
about7seconds
Measuringcapacitance < 100uF Measuringtime is
about15seconds
6-5FrequencyMeasurement
DANGER
●Toavoid the dangerofgettingelectrical shocks,
nevermakemeasurementonacircuitover300V
AC/DC.(electricalpotentialtoground300VAC/DC)
●DonotoperateFunctionSelectorSwitchduring
measurement.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
FrequencycanbemeasuredatACVfunctionsby
pressing"Hz/DUTY"Switch.Concerningwiththe
directionforuseof"Hz/DUTY"Switch,please
referencetotheitem7-1Hz/DUTYinthisdocument.
Note)Theminimuminput canbemeasuredisapprox.
1.5V.
7.HowtouseFunctionSwitches
7-1SELECT,Hz/DUTYKey
Ateachfunction,theactionsofSELECT,Hz/DUTYkey
aredifferentsopleaserefertofollowingitemsandmake
activeuseofthem.
●ACVfunction
(AbovetwokeysactasHz/DUTYswitchkey.)
CapableofselectingtheVoltage,Frequencyor
DUTYmeasurementmode.
Attheinitialcondition,Voltagemeasurementhas
beenselectedfortheACVfunction.
Bypressing"Hz/DUTY"key,measuringmode
changes.
"Voltage"→ "Frequency"→ "DUTY"
●DCV,Ω andCapacitancemeasurement
(AbovetwokeysactasREL△ key.)
Indicatethedifferencebetweenmeasuredvalues.
Whenany function ("DCV", "Ω" and "Capacitance")
selected,themeasuredvaluecanbestoredby
pressingSELECT key and after that, the difference
betweenstoredvalueandmeasuringvalueis
indicatedonthedisplay
(△markiskeeplightingonthedisplaywhileavalue
isstored)
Thestoredvaluecanbereleasedbypressing
"SELECT"keyagain.
"Release"→ "Memory"
●Continuitycheck/Diodecheckfunction
(ChangebetweenContinuitycheckandDiodecheck)
At the initial condition, "Continuity check" mode has
beenselectedfortheContinuitycheck/Diodecheck
function.
Bypressing "SELECT"key,measuringmode
changes.
"Continuitycheck"→ "Diodecheck"
Therelativemeasurementisallowedinthefollowing
range.
*Measuringrange=Fullscalevalue at a range−
initialvalue
7-2DATAHOLDKey
Themeasuredvaluecanbeholdatallfunctions.
Bypressing "DATA HOLD" key,"DH"symbolindicated
onthedisplayandtheindicatedvaluecanbeheld.
Bypressing"DATAHOLD"keyagain,"DH"symbol
disappearsfromthedisplayandhelddataisreleased.
8.AutoPowerOff
Autopowerofffunctionoperateswhenabout15minutes
passedafterpoweronthisinstrument.WhenAuto
powerofffunctionoperatesandtheinstrumentpowered
off,the power-off statuereturns to normalby pressing
anykey.
9.BatteryReplacement
DANGER
●Neveropentheinstrumentcasewhenmaking
measurement.
●Toavoidgettingelectricalshock,besuretoremove
testleads from the instrumentwhenopeningthe
instrumentcaseinordertoreplacebatteries.
(1)RemovethePortableholderfromtheinstrument.
(2)Loosenone screw on the bottomof the instrument
andopenthebatterycover,thenreplacebatteries.
Battery:TwoLR44(SR44)1.5Vorequivalent
10.Maintenance
Useaclothdipped inwateror neutraldetergentfor
cleaningtheinstrument.Donotuseabrasivesor
solvents.
①
③
②
④
⑤
DISTRIBUTOR
KYORITSUELECTRICAL
INSTRUMENTSWORKS,LTD．
No.5-20,Nakane2
― chome,Meguro-ku,
Tokyo,152-0031Japan
Phone：81
― 3 ― 3723 ― 0131
Fax
：81 ― 3 ― 3723 ― 0152
URL：http://www.kew-ltd.co.jp
E-mail：[email protected]
Factories：Uwajima＆Ehime
Kyoritsureservestherightstochangespecifications
orDesignsdescribed in this manual without notice
andwithoutobligations.
CARDTYPEAUTORANGEDIGITALMULTIMETER
KEW1018
KYORITSUELECTRICALINSTRUMENTS
WORKS,LTD.TOKYO,JAPAN

1.SafetyWarnings
This instrument has been designed, manufactured and
testedaccordingtothefollowingstandards.
IEC61010-1MeasurementCATⅢ300VPollutiondegree2
IEC61010-031
IEC61326
Thisinstructionmanualcontainswarningsandsafety
ruleswhich must be observedbytheuserto ensure
safeoperation of theinstrumentandretainit in safe
condition.Therefore,readthroughtheseoperating
instructionsbeforeusingtheinstrument.
WARNING
●Read through and understand instructions
containedinthis manual before startingusingthe
instrument.
●Saveand keep the manual handy to enable quick
referencewhenevernecessary.
●Thisinstrumentshouldonlybeusedby suitably
trainedpersonandbesureto follow measurement
proceduresdescribedinthemanual.Kyoritsu
assumesno responsibility fordamageandinjury
causedbymisuseornotfollowinginstructionsinthe
manual.
●Besure tounderstandandfollow allsafety
instructionscontainedinthemanual.
Besuretoobservetheaboveinstructions.
Failuretofollowthe aboveinstructionsmaycause
injury, instrument damage and/or damage to
equipmentundertest.
Thesymbol indicatedontheinstrumentmeansthatthe
usermust refertorelatedpartsin themanualforsafe
operationoftheinstrument.
Besuretocarefullyreadtheinstructionsfollowing each
symbolinthemanual.
DANGER isreserved for conditions and actions
thatarelikelytocauseseriousorfatalinjury.
WARNING isreservedforconditionsandactions
thatcancauseseriousorfatalinjury.
CAUTION is reserved for conditions and actions
thatcancauseinjuryorinstrumentdamage.
DANGER
●Nevermakemeasurementonthecircuitinwhich
electricalpotential to ground over 300V AC/DC
exists.
●Donotattempttomakemeasurementinthe
presenceofflammablegasses.Otherwise, the
useoftheinstrumentmaycausesparking,which
canleadtoanexplosion.
●Besureto keep your fingers behind the Finger
barrierpartoftestlead.
●Neverattempttousetheinstrumentifitssurface
oryourhandiswet.
●Donot open the instrument casewhenmaking
measurement.
WARNING
●Neverattempt to make any measurementif any
abnormalconditions are noted, such as broken
case,crackedtestleadsandexposedmetalparts.
●Do not turn the function selector switch with test
leadsconnectedtotheinstrument.
●Donotinstallsubstitutepartsormakeany
modificationtotheinstrument.
●Donottrytoreplacethebatteriesifthesurfaceof
theinstrumentiswet.
●Makesuretodisconnecttestleadsfromthe
deviceundertestwhenopeningthecasefor
batteryreplacement.
CAUTION
●Alwaysmakesureto checkFunctionswitch is
settingto the appropriaterangebeforestarting
measurement.
●Donotexposetheinstrument to the direct sun,
hightemperatureandhumidityordewfall.
●Whentheinstrumentwillnotebeinuseforalong
period,placeitinstorageafterremovingthe
batteries.
●Usea cloth dippedin water or neutral detergent
forcleaningtheinstrument.Donotuseabrasives
orsolvents.
Pleaserefertofollowingexplanationofthesymbols
markedontheinstrumentorinthemanual.
●Symbols
： Ground ： AC ： DC
： ACandDC Ω： Resistance
： Diode ： Buzzer
： Capacitor Hz： Frequency
F： Doubleorreinforcedinsulation
● Measurement
CATⅡ： Primaryelectricalcircuitofequipment
withpowercordforconnectiontooutlet.
CATⅢ： Primary electrical circuit of the
equipment,whichissuppliedpowerfrom
adistributionboard,andcablerunfroma
distributionboardtoanoutlet.
2.Features
ThisisaDigitalMultiMeterprovidingmostportabilityby
meansofstowingtheinstrumentbodytogetherwith
probeinthenotebook-sizecover.
●Designedtointernationalsafetystandards.
IEC61010-1MeasurementCAT.Ⅲ300V
Pollutiondegree2
IEC61010-031
(probeassemblies)
●RELfunction to check thedifferenceofmeasured
values
●Autopowerofffunctiontosavebatteryconsumption
●Dataholdfunction
●DiodeandContinuitycheckfunction
●Auto-rangingfunction
●Frequencymeasurementfunction
●DUTYmeasurementfunction
(ExpressPulsewidth/Pulseperiodasapercentage)
3.Specification
●Measuringrangesandaccuracy
(23±5℃,underthe45%〜75%RH)
DCVFunction(5Autoranging):Inputimpedanceapprox.10MΩ
ACVFunction(4Autoranging):Inputimpedanceapprox.10MΩ
ResistanceFunction(6Autoranging)
Diodecheck/ContinuitycheckFunction
CapacityFunction(6Autoranging)
Frequency(6Autoranging)/DUTYFunction
Range
400mV
4V
40V
400V
600V
Measuringrange
0〜600V
Accuracy
±0.8%rdg±5dgt
±1.0%rdg±5dgt
Range
4V
40V
400V
600V
Measuringrange
0〜600V
Accuracy
±1.3%rdg±5dgt(50/60Hz)
±1.7%rdg±5dgt(〜400Hz)
±1.6%rdg±5dgt(50/60Hz)
±2.0%rdg±5dgt(〜400Hz)
Range
400Ω
4kΩ
40kΩ
400kΩ
4MΩ
40MΩ
Measuringrange
0〜40MΩ
Accuracy
±1.0%rdg±5dgt
±2.5%rdg±5dgt
Range
4nF
40nF
400nF
4uF
40uF
200uF
Measuringrange
〜200uF
Accuracy
±5.5%rdg±10dgt
±3.5%rdg±10dgt
±3.5%rdg±5dgt
±4.5%rdg±5dgt
Range
10Hz
100Hz
1000Hz
10kHz
100kHz
200kHz
DUTY
Measuringrange
〜200kHz
Inputsensitivity:
morethan1.5V(RMS)
Accuracy
±0.1%rdg±5dgt
0.1〜99.9%
(Pulsewidth/Pulseperiod)
±2.5%rdg±5dgt
Function
Diodecheck
Continuitycheck
Measuringrange
Testcurrentapprox.0.4mA
Buzzerbeepsbelowabout120Ω
Note:
*AtVoltagefunction,theAuto-rangingfunctionisreleased
bypressingtheSELECTkey.Tomeasureavoltage
again,turntheFunctionswitchtothe"OFF"position
once.ThensetittotheVoltagefunctionagain.
●Standards:
IEC61010-1 MeasurementCATⅢ300V,pollutiondegree2
MeasurementCATⅡ600V,pollutiondegree2
IEC61010-031
IEC61326
●Methodofoperation:△∑method
●Indication:
LCDmaximumvalue3999(ACV,DCV,Ω,F)
units,symbols
●Overrangedisplay:
"OL"symbolisdisplayedontheLCD.
Incasethatthevalueisbeyondeffectivemeasuring
rangeat the position ofΩ function range and manual
range.
●Auto-ranging:
Rangeshiftstoupperrangewhenindicatedvalueis
morethan3999.Rangeshiftstolowerrangewhen
indicatedvalueislessthan360.
●Samplingrate: approx.400ms
●OperatingEnvironmentalconditions
−indooruse
−altitudeupto2000m
●
Temperature&Humidityrange(guaranteedaccuracy):
23℃±5℃ Relativehumidity:lessthan75%
●OperatingTemperature&Humidityrange:
0℃〜+40℃ Relativehumidity:lessthan80%
●StorageTemperature&Humidityrange:
-20℃〜+60℃ Relativehumidity:lessthan70%
●InsulationResistance:
Itshouldbemorethan10MΩ/DC1000Vbetween
electricalcircuitandenclosures.
●WithstandVoltage:
ItshouldbemorethanAC3700V/foroneminute
betweenelectricalcircuitandenclosures.
●OverloadProtection:
Voltagefunction: 720V(RMS.)10seconds
Resistancefunction: 250V(RMS.)10seconds
Diode/Continuity: 250V(RMS.)10seconds
Capacityfunction: 250V(RMS.)10seconds
Frequencyfunction:250V(RMS.)10seconds
●Dimensions: approx.107(L)x54(W)x10(D)mm
●Weight: approx.70g(includingbatteries)
●Powersource: TwoLR44(SR44)1.5Vorequivalent
●Accessories: TwoLR44(SR44)batteries
Portableholder
Instructionmanual
CAUTION
Thevoltageshownaboveisthe overloadprotection
(overvoltageprotection)fortheinstrument.
Makesurenottoexceedthevalueofvoltageshown
above.
4.InstrumentLayout
①FunctionSelectorSwitch ④DATAHOLDKey
②Display ⑤TestLeads
③SELECTKey
5.Preparation
5-1CheckingBatteryVoltage
SettheFunctionSelectorSwitchtootherpositions
excepttheOFFposition.
BatteryVoltageisenoughifindicationisclearandBT
symbolisnotindicatedinthisbout.
IfBTsymbolisindicatedornoindicationonthe
display,followtotheBatteryReplacementprocedures
showninitem9inthisdocumentandreplacewithnew
batteries.
INSTRUCTIONMANUAL
6.Measurements
6-1VoltageMeasurement(DCV,ACV)
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermakemeasurementonacircuitover600V
AC/DC.(electricalpotentialtoground300VAC/DC)
●DonotoperateFunctionSelectorSwitchduring
measurement.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
6-1-1DCVoltageMeasurement(DCV)
(1)SettheFunctionSelectorSwitchto" "position.
(Then, "AUTO"," "and"mV" symbols are indicated
onthedisplay.)
(2)Connectthe black test lead to the negative side of
thecircuitunderthetestandtheredtestleadtothe
positivesideofthecircuit,thenthemeasuredvalue
isindicatedonthe display. If you connect thetest
leadstheother way, "
- "symbolis indicated on the
display.
6-1-2ACVoltageMeasurement(ACV)
(1)SettheFunctionSelectorSwitchto" "position.
(Then,"AUTO"," ",and"V"symbolsareindicated
onthedisplay.)
(2)Connectthetestleadstothecircuitundertest.
Measuredvalueisindicatedonthedisplay.
Note)Evenif short-circuit theinputlineattherange of
AC4V,2〜5dgtmayremainindicated.
6-2ResistanceMeasurement
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuit inwhich
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
(1)SettheFunctionSelectorSwitchto"Ω"position.
(Then,"AUTO"and"MΩ"symbolsareindicatedon
thedisplay.)Makesurethatthe"OL"symbolis
indicatedon the display at thisbout, then short the
testleadtipsandcheck"0"isindicatedonthe
display.
(2)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.
Note)Evenifshortthetestleadtips,indicatedvaluemay
notbe "0". But this isbecause of the resistanceof
testleadsandnotafailure.
6-3ContinuityCheck/DiodeCheck
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuit inwhich
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
6-3-1ContinuityCheck
(1)SettheFunctionSelectorSwitchto" / "position.
(Then," "and Ω symbols are indicated on the
display.)
(2)Makesure that the"OL"symbol is indicated on the
displayatthisbout,thenshortthetestleadtipsand
check"0"isindicatedonthedisplayandcheckifthe
buzzerbeeps.
(3)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.The
buzzerbeepsbelowabout120Ω.
Note)Evenifshortthetestleadtips,indicatedvaluemay
notbe "0". But this isbecause of the resistanceof
testleadsandnotafailure.
6-3-2DiodeCheck
(1)SettheFunctionSelectorSwitchto" / "position.
(Then," "and"Ω"symbolsareindicatedonthe
display.)
(2)PresstheSELECTKeytwiceandsettheinstrument
toDiodeCheckmode.(Then," "and"V"
symbolsare indicated onthedisplay.)Makesure
thatthe "OL" symbol is indicatedon the display at
thisbout,thenshortthetestleadtipsandcheck"0"
isindicatedonthedisplay.
(3)Connectthe black testlead to the cathode sideof
theDiodeandtheredtestleadtotheanodesideof
theDiode.
ForwardvoltageofDiodeisindicatedonthedisplay.
(4)Connecttheblacktestleadtotheanodesideofthe
Diodeandtheredtestleadtothecathodesideofthe
Diode.Normally,"OL"symbolisindicatedonthe
display.
Conclusion:Diodeis OK if the instrument complieswith
aboveitems(3)and(4).
Note)Open-circuitvoltagebetweenmeasuringterminalsis
approx.1.5V.(measuringcurrentapprox.0.4mA)
6-4CapacitanceMeasurement
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuit inwhich
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
●Makesuretodischargethecapacitorbeforemaking
measurement.
(1)SettheFunctionSelectorSwitchto" "position.
(Then,"AUTO"and "nF" symbols are indicatedon
thedisplay.)
(2)PresstheSELECTkeyand"0"shallbeindicated.
(Then,"△"symbolisindicatedonthedisplay.)
(3)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.
Measuringunit"nF" / "uF" is automatically chosen
andindicatedduetothemeasuredvalue.
Note)Itmay take some time according to the measuring
capacitance.
Measuringcapacitance<4uFMeasuringtimeis
about2seconds
Measuringcapacitance < 40uF Measuringtimeis
about7seconds
Measuringcapacitance < 100uF Measuringtime is
about15seconds
6-5FrequencyMeasurement
DANGER
●Toavoid the dangerofgettingelectrical shocks,
nevermakemeasurementonacircuitover300V
AC/DC.(electricalpotentialtoground300VAC/DC)
●DonotoperateFunctionSelectorSwitchduring
measurement.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
FrequencycanbemeasuredatACVfunctionsby
pressing"Hz/DUTY"Switch.Concerningwiththe
directionforuseof"Hz/DUTY"Switch,please
referencetotheitem7-1Hz/DUTYinthisdocument.
Note)Theminimuminput canbemeasuredisapprox.
1.5V.
7.HowtouseFunctionSwitches
7-1SELECT,Hz/DUTYKey
Ateachfunction,theactionsofSELECT,Hz/DUTYkey
aredifferentsopleaserefertofollowingitemsandmake
activeuseofthem.
●ACVfunction
(AbovetwokeysactasHz/DUTYswitchkey.)
CapableofselectingtheVoltage,Frequencyor
DUTYmeasurementmode.
Attheinitialcondition,Voltagemeasurementhas
beenselectedfortheACVfunction.
Bypressing"Hz/DUTY"key,measuringmode
changes.
"Voltage"→ "Frequency"→ "DUTY"
●DCV,Ω andCapacitancemeasurement
(AbovetwokeysactasREL△ key.)
Indicatethedifferencebetweenmeasuredvalues.
Whenany function ("DCV", "Ω" and "Capacitance")
selected,themeasuredvaluecanbestoredby
pressingSELECT key and after that, the difference
betweenstoredvalueandmeasuringvalueis
indicatedonthedisplay
(△markiskeeplightingonthedisplaywhileavalue
isstored)
Thestoredvaluecanbereleasedbypressing
"SELECT"keyagain.
"Release"→ "Memory"
●Continuitycheck/Diodecheckfunction
(ChangebetweenContinuitycheckandDiodecheck)
At the initial condition, "Continuity check" mode has
beenselectedfortheContinuitycheck/Diodecheck
function.
Bypressing "SELECT"key,measuringmode
changes.
"Continuitycheck"→ "Diodecheck"
Therelativemeasurementisallowedinthefollowing
range.
*Measuringrange=Fullscalevalue at a range−
initialvalue
7-2DATAHOLDKey
Themeasuredvaluecanbeholdatallfunctions.
Bypressing "DATA HOLD" key,"DH"symbolindicated
onthedisplayandtheindicatedvaluecanbeheld.
Bypressing"DATAHOLD"keyagain,"DH"symbol
disappearsfromthedisplayandhelddataisreleased.
8.AutoPowerOff
Autopowerofffunctionoperateswhenabout15minutes
passedafterpoweronthisinstrument.WhenAuto
powerofffunctionoperatesandtheinstrumentpowered
off,the power-off statuereturns to normalby pressing
anykey.
9.BatteryReplacement
DANGER
●Neveropentheinstrumentcasewhenmaking
measurement.
●Toavoidgettingelectricalshock,besuretoremove
testleads from the instrumentwhenopeningthe
instrumentcaseinordertoreplacebatteries.
(1)RemovethePortableholderfromtheinstrument.
(2)Loosenone screw on the bottomof the instrument
andopenthebatterycover,thenreplacebatteries.
Battery:TwoLR44(SR44)1.5Vorequivalent
10.Maintenance
Useaclothdipped inwateror neutraldetergentfor
cleaningtheinstrument.Donotuseabrasivesor
solvents.
①
③
②
④
⑤
DISTRIBUTOR
KYORITSUELECTRICAL
INSTRUMENTSWORKS,LTD．
No.5-20,Nakane2
― chome,Meguro-ku,
Tokyo,152-0031Japan
Phone：81
― 3 ― 3723 ― 0131
Fax
：81 ― 3 ― 3723 ― 0152
URL：http://www.kew-ltd.co.jp
E-mail：[email protected]
Factories：Uwajima＆Ehime
Kyoritsureservestherightstochangespecifications
orDesignsdescribed in this manual without notice
andwithoutobligations.
CARDTYPEAUTORANGEDIGITALMULTIMETER
KEW1018
KYORITSUELECTRICALINSTRUMENTS
WORKS,LTD.TOKYO,JAPAN

1.SafetyWarnings
This instrument has been designed, manufactured and
testedaccordingtothefollowingstandards.
IEC61010-1MeasurementCATⅢ300VPollutiondegree2
IEC61010-031
IEC61326
Thisinstructionmanualcontainswarningsandsafety
ruleswhich must be observed by the usertoensure
safeoperation of the instrument andretainitinsafe
condition.Therefore,readthroughtheseoperating
instructionsbeforeusingtheinstrument.
WARNING
●Read through and understand instructions
containedin this manual beforestarting using the
instrument.
●Saveand keep the manual handy to enable quick
referencewhenevernecessary.
●Thisinstrumentshouldonlybe usedbysuitably
trainedpersonandbesuretofollowmeasurement
proceduresdescribedinthemanual.Kyoritsu
assumesno responsibility for damage andinjury
causedbymisuseornotfollowinginstructionsinthe
manual.
●Besure tounderstandandfollowall safety
instructionscontainedinthemanual.
Besuretoobservetheaboveinstructions.
Failuretofollowtheaboveinstructionsmaycause
injury, instrument damage and/or damage to
equipmentundertest.
Thesymbol indicatedontheinstrumentmeansthatthe
usermust refer torelatedpartsinthemanual for safe
operationoftheinstrument.
Besuretocarefullyreadtheinstructionsfollowing each
symbolinthemanual.
DANGER isreserved for conditionsand actions
thatarelikelytocauseseriousorfatalinjury.
WARNING isreservedforconditionsandactions
thatcancauseseriousorfatalinjury.
CAUTION is reserved for conditions and actions
thatcancauseinjuryorinstrumentdamage.
DANGER
●Nevermakemeasurementonthecircuitinwhich
electricalpotentialtogroundover300V AC/DC
exists.
●Donotattempttomakemeasurementinthe
presenceof flammablegasses.Otherwise,the
useoftheinstrumentmaycausesparking,which
canleadtoanexplosion.
●BesuretokeepyourfingersbehindtheFinger
barrierpartoftestlead.
●Neverattempttousetheinstrumentifitssurface
oryourhandiswet.
●Donotopen the instrument case when making
measurement.
WARNING
●Neverattempt to make any measurement if any
abnormalconditionsarenoted,suchasbroken
case,crackedtestleadsandexposedmetalparts.
●Do not turn the function selector switch with test
leadsconnectedtotheinstrument.
●Donotinstallsubstitutepartsormakeany
modificationtotheinstrument.
●Donottrytoreplacethebatteriesifthesurfaceof
theinstrumentiswet.
●Makesuretodisconnecttestleadsfromthe
deviceundertestwhenopeningthecasefor
batteryreplacement.
CAUTION
●Alwaysmakesuretocheck Functionswitchis
settingto the appropriate range beforestarting
measurement.
●Donotexpose the instrument to thedirectsun,
hightemperatureandhumidityordewfall.
●Whentheinstrumentwillnotebeinuseforalong
period,placeitinstorageafterremovingthe
batteries.
●Usea cloth dipped in water or neutraldetergent
forcleaningtheinstrument.Donotuseabrasives
orsolvents.
Pleaserefertofollowing explanation of the symbols
markedontheinstrumentorinthemanual.
●Symbols
： Ground ： AC ： DC
： ACandDC Ω： Resistance
： Diode ： Buzzer
： Capacitor Hz： Frequency
F： Doubleorreinforcedinsulation
● Measurement
CATⅡ： Primaryelectricalcircuitofequipment
withpowercordforconnectiontooutlet.
CATⅢ： Primary electrical circuit of the
equipment,whichissuppliedpowerfrom
adistributionboard,andcablerunfroma
distributionboardtoanoutlet.
2.Features
ThisisaDigitalMultiMeterprovidingmostportabilityby
meansof stowingtheinstrumentbodytogetherwith
probeinthenotebook-sizecover.
●Designedtointernationalsafetystandards.
IEC61010-1MeasurementCAT.Ⅲ300V
Pollutiondegree2
IEC61010-031
(probeassemblies)
●RELfunction to check the difference ofmeasured
values
●Autopowerofffunctiontosavebatteryconsumption
●Dataholdfunction
●DiodeandContinuitycheckfunction
●Auto-rangingfunction
●Frequencymeasurementfunction
●DUTYmeasurementfunction
(ExpressPulsewidth/Pulseperiodasapercentage)
3.Specification
●Measuringrangesandaccuracy
(23±5℃,underthe45%〜75%RH)
DCVFunction(5Autoranging):Inputimpedanceapprox.10MΩ
ACVFunction(4Autoranging):Inputimpedanceapprox.10MΩ
ResistanceFunction(6Autoranging)
Diodecheck/ContinuitycheckFunction
CapacityFunction(6Autoranging)
Frequency(6Autoranging)/DUTYFunction
Range
400mV
4V
40V
400V
600V
Measuringrange
0〜600V
Accuracy
±0.8%rdg±5dgt
±1.0%rdg±5dgt
Range
4V
40V
400V
600V
Measuringrange
0〜600V
Accuracy
±1.3%rdg±5dgt(50/60Hz)
±1.7%rdg±5dgt(〜400Hz)
±1.6%rdg±5dgt(50/60Hz)
±2.0%rdg±5dgt(〜400Hz)
Range
400Ω
4kΩ
40kΩ
400kΩ
4MΩ
40MΩ
Measuringrange
0〜40MΩ
Accuracy
±1.0%rdg±5dgt
±2.5%rdg±5dgt
Range
4nF
40nF
400nF
4uF
40uF
200uF
Measuringrange
〜200uF
Accuracy
±5.5%rdg±10dgt
±3.5%rdg±10dgt
±3.5%rdg±5dgt
±4.5%rdg±5dgt
Range
10Hz
100Hz
1000Hz
10kHz
100kHz
200kHz
DUTY
Measuringrange
〜200kHz
Inputsensitivity:
morethan1.5V(RMS)
Accuracy
±0.1%rdg±5dgt
0.1〜99.9%
(Pulsewidth/Pulseperiod)
±2.5%rdg±5dgt
Function
Diodecheck
Continuitycheck
Measuringrange
Testcurrentapprox.0.4mA
Buzzerbeepsbelowabout120Ω
Note:
*AtVoltagefunction,theAuto-rangingfunctionisreleased
bypressingtheSELECTkey.Tomeasureavoltage
again,turntheFunctionswitchtothe"OFF"position
once.ThensetittotheVoltagefunctionagain.
●Standards:
IEC61010-1 MeasurementCATⅢ300V,pollutiondegree2
MeasurementCATⅡ600V,pollutiondegree2
IEC61010-031
IEC61326
●Methodofoperation:△∑method
●Indication:
LCDmaximumvalue3999(ACV,DCV,Ω,F)
units,symbols
●Overrangedisplay:
"OL"symbolisdisplayedontheLCD.
Incasethatthevalue is beyond effective measuring
rangeat the positionof Ω function rangeand manual
range.
●Auto-ranging:
Rangeshiftstoupperrangewhenindicated value is
morethan3999.Rangeshiftstolower rangewhen
indicatedvalueislessthan360.
●Samplingrate: approx.400ms
●OperatingEnvironmentalconditions
−indooruse
−altitudeupto2000m
●
Temperature&Humidityrange(guaranteedaccuracy):
23℃±5℃ Relativehumidity:lessthan75%
●OperatingTemperature&Humidityrange:
0℃〜+40℃ Relativehumidity:lessthan80%
●StorageTemperature&Humidityrange:
-20℃〜+60℃ Relativehumidity:lessthan70%
●InsulationResistance:
Itshouldbemorethan10MΩ/DC1000Vbetween
electricalcircuitandenclosures.
●WithstandVoltage:
ItshouldbemorethanAC3700V/foroneminute
betweenelectricalcircuitandenclosures.
●OverloadProtection:
Voltagefunction: 720V(RMS.)10seconds
Resistancefunction: 250V(RMS.)10seconds
Diode/Continuity: 250V(RMS.)10seconds
Capacityfunction: 250V(RMS.)10seconds
Frequencyfunction:250V(RMS.)10seconds
●Dimensions: approx.107(L)x54(W)x10(D)mm
●Weight: approx.70g(includingbatteries)
●Powersource: TwoLR44(SR44)1.5Vorequivalent
●Accessories: TwoLR44(SR44)batteries
Portableholder
Instructionmanual
CAUTION
Thevoltageshownaboveistheoverload protection
(overvoltageprotection)fortheinstrument.
Makesurenottoexceedthevalueofvoltageshown
above.
4.InstrumentLayout
①FunctionSelectorSwitch ④DATAHOLDKey
②Display ⑤TestLeads
③SELECTKey
5.Preparation
5-1CheckingBatteryVoltage
SettheFunctionSelectorSwitchtoother positions
excepttheOFFposition.
BatteryVoltageisenoughifindicationisclearandBT
symbolisnotindicatedinthisbout.
IfBTsymbolisindicatedornoindicationonthe
display,followtotheBatteryReplacementprocedures
showninitem9inthisdocumentandreplacewithnew
batteries.
INSTRUCTIONMANUAL
6.Measurements
6-1VoltageMeasurement(DCV,ACV)
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermakemeasurementonacircuitover 600V
AC/DC.(electricalpotentialtoground300VAC/DC)
●DonotoperateFunctionSelectorSwitchduring
measurement.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
6-1-1DCVoltageMeasurement(DCV)
(1)SettheFunctionSelectorSwitchto" "position.
(Then, "AUTO"," "and"mV" symbols are indicated
onthedisplay.)
(2)Connectthe black test lead to thenegative side of
thecircuitunderthetestandtheredtestleadtothe
positivesideofthecircuit,thenthemeasuredvalue
isindicatedon the display. Ifyouconnect the test
leadstheother way, "
- "symbolis indicated on the
display.
6-1-2ACVoltageMeasurement(ACV)
(1)SettheFunctionSelectorSwitchto" "position.
(Then,"AUTO"," ",and"V"symbolsareindicated
onthedisplay.)
(2)Connectthetestleadstothecircuitundertest.
Measuredvalueisindicatedonthedisplay.
Note)Evenif short-circuit the input line attherangeof
AC4V,2〜5dgtmayremainindicated.
6-2ResistanceMeasurement
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuitin which
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
(1)SettheFunctionSelectorSwitchto"Ω"position.
(Then,"AUTO"and"MΩ"symbolsareindicatedon
thedisplay.)Makesurethatthe"OL"symbolis
indicatedon the display at this bout, then short the
testleadtipsandcheck"0"isindicatedonthe
display.
(2)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.
Note)Evenifshortthetestleadtips,indicatedvaluemay
notbe "0". But this is because ofthe resistance of
testleadsandnotafailure.
6-3ContinuityCheck/DiodeCheck
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuitin which
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
6-3-1ContinuityCheck
(1)SettheFunctionSelectorSwitchto" / "position.
(Then," "and Ω symbols are indicated on the
display.)
(2)Makesure thatthe "OL" symbol is indicatedon the
displayatthisbout,thenshortthetestleadtipsand
check"0"isindicatedonthedisplayandcheckifthe
buzzerbeeps.
(3)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.The
buzzerbeepsbelowabout120Ω.
Note)Evenifshortthetestleadtips,indicatedvaluemay
notbe "0". But this is because ofthe resistance of
testleadsandnotafailure.
6-3-2DiodeCheck
(1)SettheFunctionSelectorSwitchto" / "position.
(Then," "and"Ω"symbolsareindicatedonthe
display.)
(2)PresstheSELECTKeytwiceandsettheinstrument
toDiodeCheckmode.(Then," "and"V"
symbolsare indicated on the display.)Makesure
thatthe "OL" symbol isindicated on thedisplay at
thisbout,thenshortthetestleadtipsandcheck"0"
isindicatedonthedisplay.
(3)Connectthe blacktest lead to thecathode side of
theDiodeandtheredtestleadtotheanodesideof
theDiode.
ForwardvoltageofDiodeisindicatedonthedisplay.
(4)Connecttheblacktestleadtotheanodesideofthe
Diodeandtheredtestleadtothecathodesideofthe
Diode.Normally,"OL"symbolisindicatedonthe
display.
Conclusion:DiodeisOK if the instrument complies with
aboveitems(3)and(4).
Note)Open-circuitvoltagebetweenmeasuringterminalsis
approx.1.5V.(measuringcurrentapprox.0.4mA)
6-4CapacitanceMeasurement
DANGER
●Toavoidthedangerofgettingelectricalshock,
nevermake measurementofthecircuitin which
electricpotentialexists.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
●Makesuretodischargethecapacitorbeforemaking
measurement.
(1)SettheFunctionSelectorSwitchto" "position.
(Then,"AUTO"and "nF" symbolsareindicated on
thedisplay.)
(2)PresstheSELECTkeyand"0"shallbeindicated.
(Then,"△"symbolisindicatedonthedisplay.)
(3)Connectthetestleadstobothendsoftheresistance
undertest.
Measuredvalueisindicatedonthedisplay.
Measuringunit"nF" / "uF" isautomatically chosen
andindicatedduetothemeasuredvalue.
Note)Itmay take some time according to the measuring
capacitance.
Measuringcapacitance<4uFMeasuringtimeis
about2seconds
Measuringcapacitance < 40uF Measuring time is
about7seconds
Measuringcapacitance < 100uFMeasuring time is
about15seconds
6-5FrequencyMeasurement
DANGER
●Toavoid the dangerofgettingelectricalshocks,
nevermakemeasurementonacircuitover 300V
AC/DC.(electricalpotentialtoground300VAC/DC)
●DonotoperateFunctionSelectorSwitchduring
measurement.
●Donotmakemeasurementwhenopeningthe
instrumentcase.
FrequencycanbemeasuredatACVfunctionsby
pressing"Hz/DUTY"Switch.Concerningwiththe
directionforuseof"Hz/DUTY"Switch,please
referencetotheitem7-1Hz/DUTYinthisdocument.
Note)Theminimuminputcanbemeasuredisapprox.
1.5V.
7.HowtouseFunctionSwitches
7-1SELECT,Hz/DUTYKey
Ateachfunction,theactionsofSELECT,Hz/DUTYkey
aredifferentsopleaserefertofollowingitemsandmake
activeuseofthem.
●ACVfunction
(AbovetwokeysactasHz/DUTYswitchkey.)
CapableofselectingtheVoltage,Frequencyor
DUTYmeasurementmode.
Attheinitialcondition,Voltage measurementhas
beenselectedfortheACVfunction.
Bypressing"Hz/DUTY"key,measuringmode
changes.
"Voltage"→ "Frequency"→ "DUTY"
●DCV,Ω andCapacitancemeasurement
(AbovetwokeysactasREL△ key.)
Indicatethedifferencebetweenmeasuredvalues.
Whenany function ("DCV", "Ω" and "Capacitance")
selected,themeasuredvaluecanbestoredby
pressingSELECT key and after that, the difference
betweenstoredvalueandmeasuringvalueis
indicatedonthedisplay
(△markiskeeplightingonthedisplaywhileavalue
isstored)
Thestoredvaluecanbereleasedbypressing
"SELECT"keyagain.
"Release"→ "Memory"
●Continuitycheck/Diodecheckfunction
(ChangebetweenContinuitycheckandDiodecheck)
At the initial condition, "Continuity check" mode has
beenselectedfortheContinuitycheck/Diodecheck
function.
Bypressing "SELECT"key,measuringmode
changes.
"Continuitycheck"→ "Diodecheck"
Therelativemeasurementisallowedinthefollowing
range.
*Measuringrange =Fullscalevalueatarange−
initialvalue
7-2DATAHOLDKey
Themeasuredvaluecanbeholdatallfunctions.
Bypressing "DATA HOLD" key, "DH" symbolindicated
onthedisplayandtheindicatedvaluecanbeheld.
Bypressing"DATAHOLD"keyagain,"DH"symbol
disappearsfromthedisplayandhelddataisreleased.
8.AutoPowerOff
Autopowerofffunctionoperateswhenabout15minutes
passedafterpoweronthisinstrument.WhenAuto
powerofffunctionoperatesandtheinstrumentpowered
off,the power-off statue returns to normal by pressing
anykey.
9.BatteryReplacement
DANGER
●Neveropentheinstrumentcasewhenmaking
measurement.
●Toavoidgettingelectricalshock,besuretoremove
testleads from the instrument when opening the
instrumentcaseinordertoreplacebatteries.
(1)RemovethePortableholderfromtheinstrument.
(2)Loosenone screw on thebottom of the instrument
andopenthebatterycover,thenreplacebatteries.
Battery:TwoLR44(SR44)1.5Vorequivalent
10.Maintenance
Useaclothdippedin waterorneutral detergentfor
cleaningtheinstrument.Donotuseabrasivesor
solvents.
①
③
②
④
⑤
DISTRIBUTOR
KYORITSUELECTRICAL
INSTRUMENTSWORKS,LTD．
No.5-20,Nakane2
― chome,Meguro-ku,
Tokyo,152-0031Japan
Phone：81
― 3 ― 3723 ― 0131
Fax
：81 ― 3 ― 3723 ― 0152
URL：http://www.kew-ltd.co.jp
E-mail：[email protected]
Factories：Uwajima＆Ehime
Kyoritsureservestherightstochangespecifications
orDesignsdescribed in this manualwithout notice
andwithoutobligations.
CARDTYPEAUTORANGEDIGITALMULTIMETER
KEW1018
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