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CAT Ⅲ  300 V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
300 V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.
●  UseofourProtectiveCapoffersdifferentlengthsofthe
exposedmetalpartsuitableforthetestenvironments.
PleaseattachtheCapontothemetalpartunderCAT.
IIIorhighertestenvironments.
# 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.
● TheCapshouldbefirmlyattachedtotheProbes.
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


： Doubleorreinforcedinsulation
●  Measurement
CAT Ⅱ：  Primaryelectricalcircuitof equipmentwith
powercordforconnectiontooutlet.
CAT Ⅲ：  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. Ⅲ  300 V
 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. 10 M Ω
Range Measuringrange Accuracy
400 mV
0 〜 600 V
± 0 . 8 %rdg ± 5 dgt
4 V
40 V
400 V
600 V ± 1 . 0 %rdg ± 5 dgt
ACVFunction( 4 Autoranging):Inputimpedanceapprox. 10 M Ω
Range Measuringrange Accuracy
4 V
0 〜 600 V
± 1 . 3 %rdg ± 5 dgt( 50 / 60 Hz)
± 1 . 7 %rdg ± 5 dgt( 〜 400 Hz)
40 V
400 V
± 1 . 6 %rdg ± 5 dgt( 50 / 60 Hz)
± 2 . 0 %rdg ± 5 dgt( 〜 400 Hz)
600 V
ResistanceFunction( 6 Autoranging)
Range Measuringrange Accuracy
400 Ω
0 〜 40 M Ω ±
1 . 0 %rdg ± 5 dgt
4 k Ω
40 k Ω
400 k Ω
4 M Ω
40 M Ω ± 2 . 5 %rdg ± 5 dgt
Diodecheck/ContinuitycheckFunction
Function Measuringrange
Diodecheck Testcurrentapprox.
0 . 4 mA
Continuitycheck Buzzerbeepsbelowabout
120 Ω
CapacityFunction( 6 Autoranging)
Range Measuringrange Accuracy
4 nF
〜 200 uF
± 5 . 5 %rdg ± 10 dgt
40 nF ± 3 . 5 %rdg ± 10 dgt
400 nF
± 3 . 5 %rdg ± 5 dgt 4 uF
40 uF
200 uF ± 4 . 5 %rdg ± 5 dgt
Frequency( 4 Autoranging)/DUTYFunction
Range Measuringrange Accuracy
10 Hz
〜 10 kHz
Inputsensitivity:
morethan
1 . 5 V(RMS)
± 0 . 1 %rdg ± 5 dgt
100 Hz
1000 Hz
10 kHz
DUTY
0 . 1 〜 99 . 9 %
(Pulsewidth/Pulseperiod)
± 2 . 5 %rdg ± 5 dgt
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 :
IEC 61010 - 1  MeasurementCAT Ⅲ  300 V,pollutiondegree 2
IEC 61010 - 031
cappedconditionforCAT.III 300 V
uncappedconditionforCAT.II 300 V
IEC 61326
● 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. 400 ms
● Operating Environmental conditions
 − indooruse
 − altitudeupto 2000 m
● 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 10 M Ω /DC 1000 Vbetween
electricalcircuitandenclosures.
● Withstand Voltage : 
ItshouldbemorethanAC 3700 V/foroneminute
betweenelectricalcircuitandenclosures.
● Overload Protection :
Voltagefunction: 720 V(RMS.) 10 seconds
Resistancefunction: 250 V(RMS.) 10 seconds
Diode/Continuity: 250 V(RMS.) 10 seconds
Capacityfunction: 250 V(RMS.) 10 seconds
Frequencyfunction: 250 V(RMS.) 10 seconds
● Dimensions : approx. 107 (L)x 54 (W)x 10 (D)mm
● Weight : approx. 70 g(includingbatteries)
● Power source : TwoLR 44 (SR 44 ) 1 . 5 Vorequivalent
● Accessories : TwoLR 44 (SR 44 )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
①
FunctionSelectorSwitch ④ DATAHOLDKey
② Display   ⑤ TestLeads
③ SELECT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item
9 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
600 V
AC/DC.(electricalpotentialtoground
300 V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
AC
4 V, 2 〜 5 dgt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"M Ω "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
120 Ω .
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 . 5 V.(measuringcurrentapprox. 0 . 4 mA)
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 < 4 uFMeasuringtime is
about
2 seconds
 Measuring capacitance < 40 uF Measuring time is
about
7 seconds
 Measuring capacitance < 100 uF Measuring time is
about
15 seconds
6-5FrequencyMeasurement
# DANGER
●
 To avoid the danger of getting electrical shocks,
nevermakemeasurement ona circuitover
300 V
AC/DC.(electricalpotentialtoground
300 V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item
7 - 1 Hz/DUTYinthisdocument.
Note)
Theminimuminputcanbemeasuredisapprox. 1 . 5 V. 
 Tomeasureafrequency,measure thevoltageonthe
electrical circuit in advance. Then press the "Hz/
DUTY"Keytoenterintofrequencymeasurement.
Readingsoffrequencymayfluctuateorbe
influencedundernoisyenvironment.
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"
● * 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.
● 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 15 minutes
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LR 44 (SR 44 ) 1 . 5 Vorequivalent
10. Maintenance
Use a cloth dipped in water or neutral detergent for
cleaningtheinstrument.Donotuseabrasivesor
solvents.
DISTRIBUTOR
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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