KYORITSU KEW SNAP 2002PA User manual

INSTRUCTION MANUAL
KEW SNAP SERIES
KEW
SNAP 2002ＰＡ 2002R
DIGITAL CLAMP METER
KYORITSU ELECTRICAL INSTRUMENTS
WORKS，LTD.

Contents ENGLISH
１． SafetyWarnings ……………………………………………………… 1
２． Features ……………………………………………………………… 4
３． Specifications
３−１ KEWSNAP2002PA …………………………………………… 5
３−２ KEWSNAP2002R …………………………………………… 7
４． InstrumentLayout ……………………………………………………  10
５． PreparationforMeasurement
５−１ BatteryVoltageCheck ………………………………………  11
５−２ CheckingSwitchSettingandOperation ……………………  11
６． Measurement
６−１ CurrentMeasurement …………………………………………  12
６−２ VoltageMeasurement ………………………………………  14
６−３ ResistanceMeasurement ……………………………………  15
７． NotesonFunctions
７−１ DataHold ……………………………………………………… 17
７−２ SleepFunction …………………………………………………  17
７−３ OutputforRecorder …………………………………………  18
７−４ ModeSwitchingFunction ……………………………………  19
８． BatteryReplacement …………………………………………………  20
９． OptionalAccessories …………………………………………………  21
10 ． DisposingtheProduct ………………………………………………  21

  1  
１．Safety Warnings
○ This instrument has been designed and tested according to IEC
Publication 61010
； Safety Requirements for Electronic Measuring
Apparatus.  This instruction manual contains warnings and safety
ruleswhichmustbeobservedbytheusertoensuresafeoperationof
the instrument and to retain it in safe condition.  Therefore, read
through these operating instructions before starting using the
instrument.
# WARNING
● Read through and understand instructions contained in this manual
beforestartingtousetheinstrument.
● Saveandkeepthemanualhandytoenablequickreferencewhenever
necessary.
● Be sure to use the instrument only in its intended applications and to
followmeasurementproceduresdescribed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
this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
minorinjuryorinstrumentdamage.

  2  
DANGER
● Nevermakemeasurementonthecircuitabove750VACor1000VDC.
● Do not attempt to make measurement in the presence of flammable
gasses,fumes,vaporordust.Otherwise,theuseoftheinstrumentmay
causesparking,whichcanleadtoanexplosion.
● Transformerjawtipsaredesignednottoshortthe circuitundertest.If
equipment under test has exposed conductive parts, however, extra
precautionshouldbetakentominimizethepossibilityofshorting.
● Neverattempttousetheinstrumentifitssurfaceoryourhandiswet.
● Donotexceedthemaximumallowableinputofanymeasurementrange.
● Never open the battery compartment cover and the instrument case when
makingmeasurement.
● Verifyproperoperation on a known source before use or taking action
asaresultoftheindicationoftheinstrument.
● Never try to make measurement if any abnormal conditions, such as
brokenTransformerjawsorcaseisnoted.
● The instrument is to be used only in its intended applications or
conditions. Otherwise, safety functions equipped with the instrument
doesn'twork,andinstrumentdamageorseriouspersonalinjurymaybe
caused.

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.
Returntheinstrumenttoyourdistributorforrepairorre-calibration.
● Donottrytoreplacethebatteriesifthesurfaceoftheinstrumentiswet.
● Always switch off the instrument and make sure to disconnect test leads
beforeopeningthebatterycompartmentcoverforbatteryreplacement.
○ Following symbols are used on the instrument and in the instruction
manual.Attentionshouldbepaidtoeachsymboltoensureyoursafety.
Refertotheinstructionsinthemanual.
Indicatesaninstrumentwithdoubleorreinforcedinsulation.
Indicates that this instrument can clamp on bare conductors when
measuring a voltage corresponding to the applicable Measurement
category,whichismarkednexttothissymbol.
IndicatesAC(AlternatingCurrent).
IndicatesDC(DirectCurrent).
IndicatesACandDC.
IndicatesEarth.
#

  3  
#CAUTION
● Always make sure to check the function selector switch is set to an
appropriatepositionbeforestartingmeasurement.
● Always make sure to insert the plug of each lead fully into the
appropriateterminalontheinstrument.
● Besure to set the function selector switch to the"OFF"positionafter
use.Whentheinstrumentwillnotbeinuseforalongperiod,placeitin
storageafterremovingthebatteries.
● Donot expose the instrument to the direct sun, hightemperatureordew
fall.
● Use a cloth dipped in water or neutral detergent for cleaning the
instrument.Donotuseabrasivesorsolvents.
Measurementcategories(Over-voltagecategories)
Toensure safe operationofmeasuring instruments, IEC61010 establishes
safety standards for various electrical environments, categorized as O to
CAT IV, and called measurement categories. Higher-numbered categories
correspond to electrical environments with greater momentary energy, so a
measuringinstrumentdesignedforCATIIIenvironments canenduregreater
momentaryenergythanonedesignedforCATII.
O :Circuits which are not directly connected to the mains power
supply.
CATII :Electrical circuits of equipment connected to an AC electrical
outletbyapowercord.
CATIII :Primaryelectricalcircuitsoftheequipmentconnecteddirectlyto
thedistributionpanel,andfeedersfromthedistributionpanelto
outlets.
CATIV :The circuit from the service drop to the service entrance, and
to the power meter and primary overcurrent protection device
(distributionpanel).
O: Device which is
not directly
connected to the
mains power supply

  4  
● Tear-drop-shapedjawsforeaseofuseincrowdedcableareasandother
tightplaces.
● Accurate true-RMS reading of AC current or voltage with distorted
waveform(KEWSNAP2002R)
● Providesawidemeasuringrangefrom0upto2000A.
● Terminalcovertoavoidtheuseofanincorrectterminal.
● Measurescurrentvariationasshortas10msecwithpeak-holdfeature.
● Providesoutputtoachartrecorderforcurrentvariationrecording.
● Designedtointernationalsafetystandards.
IEC61010-1(CAT.III600V/CAT.II1000VPollutiondegree2)
IEC61010-031,IEC61010-2-032,IEC61010-2-033
● Data hold function to allow easy readings in dimly lit or hard-to-read
locations.
● Sleepfeaturetoconservebatterypower.
● Permitseasycontinuitycheckwithabeeper.
● Providesadynamicrangeof4,000countsfullscale.
● Provideswidemeasuringrangeofvoltageandresistanceinauto-ranging.
● Wide frequency range from 40Hz to 1kHz (Current measuring range:
0-1500A).
● Transformerjowsfittedwithguardtofurtherimprovesafety.
● Protectedthroughoutbydoubleorreinforcedinsulation  .
２．Features

  5  
３−１ KEWSNAP2002PA
● MeasuringRangesandAccuracy(at23 ± 5 ℃ ,relativehumidity45-75%)
ACCurrent
〜
400 Ａ，〜 2000 Ａ
３．Specifications
Range
400
Ａ
2000 Ａ

MeasuringRange
０〜 400.0 Ａ
０〜
1000 Ａ
1000 〜 1500 Ａ
1500 〜 2000 Ａ
MeasuringRange
０〜 40.00 Ｖ
15.0 〜 400.0 Ｖ
150 〜 750 Ｖ
MeasuringRange
０〜± 40.00 Ｖ
±
15.0 〜± 400.0 Ｖ 
± 150 〜± 1000 Ｖ
MeasuringRange
０〜 400.0 Ω
0.150 〜 4.000k Ω 
1.50
〜 40.00k Ω
15.0 〜 400.0k Ω
OutputVoltage / MeasuringRange
０〜 400.0 ｍＶ / ０〜 400 Ａ
０〜
150.0 ｍＶ / ０〜 1500 Ａ
150.0 〜 200.0 ｍＶ /1500 〜 2000 Ａ
Resolution
0.1 Ａ
１Ａ
Resolution
0.01 Ｖ
0.1 Ｖ
１Ｖ
Resolution
0.01 Ｖ
0.1 Ｖ
１Ｖ
Resolution
0.1 Ω
１Ω
10 Ω
100 Ω
Accuracy （ FrequencyRange ）
±
1.0 ％ rdg ± 3dgt(50/60Hz ）
±
2.0 ％ rdg ± 3dgt(40 〜１ kHz)
± 1.0 ％ rdg ± 3dgt(50/60Hz ）
±
3.0 ％ rdg ± 3dgt(40 〜１ kHz)
± 3.0 ％ rdg (50/60Hz ）
Accuracy （ FrequencyRange ）
±
1.0 ％ rdg ± 2dgt(50/60Hz ）
±
1.5 ％ rdg ± 3dgt(40 〜１ kHz)
Accuracy
± 1.0 ％ rdg ± 2dgt
Accuracy
± 1.5 ％ rdg ± 2dgt
Accuracy
（ FrequencyRange ）
±
1.5 ％ rdg ± 0.5 ｍＶ (50/60Hz ）
±
2.5 ％ rdg ± 0.5 ｍＶ (40 〜１ kHz ）
±
1.5 ％ rdg ± 0.5 ｍＶ (50/60Hz ）
±
3.5 ％ rdg ± 0.5 ｍＶ (40 〜１ kHz ）
±
3.5 ％ rdg (50/60Hz ）
MaximumMeasurementTime
Continuous
15min
５ min
Range
40
Ｖ
400 Ｖ
750 Ｖ
Range
40
Ｖ
400 Ｖ
1000 Ｖ
Range
400
Ω
4k Ω
40k Ω
400k Ω
Range
400
Ａ
2000 Ａ
ACVoltage （〜Ｖ） Auto-ranging
Initiallysettothe40Vrange.Inputimpedanceisabout1M Ω .
DCVoltage （   Ｖ） Auto-ranging
Initiallysettothe40Vrange.Inputimpedanceisabout1M Ω .
Resistance(Auto-ranging)
Initially set to the 400 Ω  range.  In the continuity check mode, fixed to the 400 Ω  range and
whenthereadingisnotmorethan50 ± 35 Ω ,thebuzzerbeeps.
ＯＵＴＰＵＴ （ ACCurrentRanges ）
DCOutput:100.0mVper1000counts(Outputimpedance:about10k Ω )
● Electromagneticcompatibility(EMC)
EN61000-4-3RadiatedRFelectromagneticfieldimmunity
RFfieldstrength ＝＜＝ １Ｖ／ｍ ,totalaccuracy ： specifiedaccuracy
RFfieldstrength ＝ ３Ｖ／ｍ ,totalaccuracy ： specifiedaccuracy ＋２％ ofrange

  6  
● OperatingSystem DualIntegration
● Display Liquidcrystaldisplaywithamaximumcount
of4000
● LowBatteryWarning "BATT" symbol is displayed on the digital
display.
● OverrangeIndication "OL" is displayed where input exceeds the
upperlimitofarange
● ResponseTime Approx.2seconds
● Sleepfunction Automatically powered down in about 10
minutesafterthelastswitchoperation
● DataHold Available in all ranges provided the peak
measurementmodeisdeactivated.
● OperatingEnvironmental indooruse
conditions altitudeupto2000m
● StorageTemperature ー 20 〜 60 ℃ ,relativehumidityupto85%
andHumidity withoutcondensation
● OperatingTemperature 0 〜 40 ℃ ,relativehumidityupto85%
andHumidity withoutcondensation
● ConductorSize Approx.54.5diametermax.
● OverloadProtection 2400AACfor10sec
 1200VAC/DCfor10sec
 600VACfor10sec
● WithstandVoltage 5160V AC for 5 seconds between electrical
circuit and housing cases or metal parts of
jaws
● InsulationResistance 10M Ω orgreaterat1000V between
electricalcircuitandhousingcasesormetal
partsofjaws
● SafetyStandard IEC61010-1,61010-2-032,61010-2-033,
61010-031:MeasurementCAT.
Ⅲ 600V/
CAT.
Ⅱ 1000V,pollutiondegree2.
● EMC EN61326-1
● RoHS EN50581
● Dimensions 247 （ L ）× 105 （ W ）× 49 （ D ） mm
● Weight Approx.470g(batteryincluded)
● PowerSource TwoR6P(DC1.5V)batteriesorequivalent
● CurrentConsumption Approx. 5mA max. (Approx. 20 μ A in the
sleepmode)
● Accessories TestleadsM-7107A
 TwoR6Pbatteries
 Instructionmanual
 RecorderOutputPlugM-8201
 CarryingcaseM-9094
● OptionalAccessories Multi-TranM-8008
 OutputProbeM-7256,etc.

  7  
３−２ KEWSNAP 2002R
● MeasuringRangesandAccuracy(at23 ± 5 ℃ ,relativehumidity45-75%)
ACCurrent
〜
400 Ａ，
〜
2000 Ａ (9countsorlessiscorrectedto0)
Range
400
Ａ
2000 Ａ

MeasuringRange
０〜 400.0 Ａ
０〜
1000 Ａ
1000 〜 1500 Ａ
1500 〜 2000 Ａ
MeasuringRange
０〜 40.00 Ｖ
15.0 〜 400.0 Ｖ
150 〜 750 Ｖ
MeasuringRange
０〜± 40.00 Ｖ
±
15.0 〜± 400.0 Ｖ 
± 150 〜± 1000 Ｖ
MeasuringRange
０〜 400.0 Ω
0.150 〜 4.000k Ω 
1.50
〜 40.00k Ω
15.0 〜 400.0k Ω
OutputVoltage / MeasuringRange
０〜 400.0 ｍＶ / ０〜 400 Ａ
０〜
150.0 ｍＶ / ０〜 1500 Ａ
150.0 〜 200.0 ｍＶ /1500 〜 2000 Ａ
Resolution
0.1 Ａ
１Ａ
Resolution
0.01 Ｖ
0.1 Ｖ
１Ｖ
Resolution
0.01 Ｖ
0.1 Ｖ
１Ｖ
Resolution
0.1 Ω
１Ω
10 Ω
100 Ω
Accuracy （ FrequencyRange ）
±
1.5%rdg ± 3dgt （ 45 〜 65Hz ）
±
2.5%rdg ± 3dgt （ 40 〜 1kHz ）
±
2.0%rdg ± 5dgt （ 45 〜 65Hz ）
±
3.0%rdg ± 5dgt （ 40 〜 1kHz ）
±
4.0%rdg （ 50/60Hz ）
Accuracy （ FrequencyRange ）
±
1.0 ％ rdg ± 2dgt(45 〜 65Hz)
± 1.5 ％ rdg ± 3dgt(40 〜１ kHz)
Accuracy
± 1.0 ％ rdg ± 2dgt
Accuracy
± 1.5 ％ rdg ± 2dgt
Accuracy
（ FrequencyRange ）
±
2.0%rdg ± 0.5mV （ 45 〜 65Hz ）
±
3.0%rdg ± 0.5mV （ 40 〜 1kHz ）
±
2.5%rdg ± 0.5mV （ 45 〜 65Hz ）
±
3.5%rdg ± 0.5mV （ 40 〜 1kHz ）
±
4.5%rdg  （ 50/60Hz ）
MaximumMeasurementTime
Continuous
15min
５ min
Range
40
Ｖ
400 Ｖ
750 Ｖ
Range
40
Ｖ
400 Ｖ
1000 Ｖ
Range
400
Ω
4k Ω
40k Ω
400k Ω
Range
400
Ａ
2000 Ａ
ACVoltage （〜Ｖ） Auto-ranging (9countsorlessiscorrectedto0)
Initiallysettothe40Vrange.Inputimpedanceisabout1M
Ω .
Whenapprox.300Vormoreisappliedtotheinstrumentinstantaneously,themeasuredvalue
isindicatedon750Vrange.
DCVoltage （   Ｖ） Auto-ranging
Initiallysettothe40Vrange.Inputimpedanceisabout1M Ω .
Resistance(Auto-ranging)
Initially set to the 400 Ω  range.  In the continuity check mode, fixed to the 400 Ω  range and
whenthereadingisnotmorethan50 ± 35 Ω ,thebuzzerbeeps.
ＯＵＴＰＵＴ （ ACCurrentRanges ）
DCOutput:100.0mVper1000counts(Outputimpedance:about10k Ω )
● CF(CrestFactor)CF=3orless
accuracy+1%(45 〜 65Hz) 、 lessthanAC3000A/AC1200VPeak
● Electromagneticcompatibility(EMC)
EN61000-4-2Electrostaticdischargeimmunity(ESD)
PerformancecriteriaB

  8  
● OperatingSystem DualIntegration
● Display Liquidcrystaldisplaywithamaximumcount
of4000
● LowBatteryWarning "BATT" symbol is displayed on the digital
display.
● OverrangeIndication "OL" is displayed where input exceeds the
upperlimitofarange
● ResponseTime Approx.2seconds(atfullscale)
● Sleepfunction Automatically powered down in about 10
minutesafterthelastswitchoperation
● DataHold Available in all ranges provided the peak
measurementmodeisdeactivated.
● OperatingEnvironmental indooruse
conditions altitudeupto2000m
● StorageTemperature ー 20 〜 60 ℃ ,relativehumidityupto85%
andHumidity withoutcondensation
● OperatingTemperature 0 〜 40 ℃ ,relativehumidityupto85%
andHumidity withoutcondensation
● ConductorSize Approx.54.5diametermax.
● OverloadProtection 2400AACfor10sec
 1200VAC/DCfor10sec
 600VACfor10sec
● WithstandVoltage 5160VACfor5secondsbetweenelectrical
circuit and housing cases or metal parts of
jaws
● InsulationResistance 50M Ω orgreaterat1000V between
electricalcircuitandhousingcasesormetal
partsofjaws
● SafetyStandard IEC61010-1,61010-2-032,61010-2-033,
61010-031:MeasurementCAT.
Ⅲ 600V/
CAT.
Ⅱ 1000V,pollutiondegree2.
● EMC EN61326-1
● RoHS EN50581
● Dimensions 247 （ L ）× 105 （ W ）× 49 （ D ） mm
● Weight Approx.470g(batteryincluded)
● PowerSource TwoR6P(DC1.5V)batteriesorequivalent
● CurrentConsumption Approx. 10mA max. (Approx. 20 μ A in the
sleepmode)
● Accessories TestleadsM-7107A
 TwoR6Pbatteries
 Instructionmanual
 RecorderOutputPlugM-8201
 CarryingcaseM-9094
● OptionalAccessories Multi-TranM-8008
 OutputProbeM-7256,etc.

  9  

  10  
４．Instrument Layout
TransformerJaw
JawTrigger
Display
ModeSwitch
ResetSwitch
DataHoldSwitch
Barrier:Itisapartprovidingprotectionagainstelectricalshockand
ensuringtheminimumrequiredairandcreepagedistances.
TerminalCover DropPreventionStrap
Ｖ／Ω Terminal
COMTerminal
OUTPUTTerminal
︸
TestLeads
M-7107A
RecorderOutputPlug
Ｍー 8102
DataHoldMode
Resistance
Voltage
Current
PeakModeMeasurementBatteryVoltageAlertContinuityCheckMode
NegativePotential
ACCurrent
DCCurrent
●  ＬＣＤ INDICATOR
FunctionSwitch
Barrier

  11  
５．Preparation for Measurement
５−１ CheckingBatteryVoltage
① Setthefunctionselectorswitchtoanypositionotherthan"OFF".
② Whenthedisplayisclearwithout"BATT"showing,proceedto
measurement.
③ When the display blanksor"BATT" is indicated, replace the batteries
accordingtosection8:batteryreplacement.
NOTE
● It is possible that display is kept in blank while the function selector
switch isset toa positionother than"OFF". Thisisdue tosleep
function which automatically powers the instrument down in a certain
periodoftimeafterthelastswitchoperation.Tooperatetheinstrument
in this case, set the switch back to the "OFF" position, then to the
desiredposition,orpressanybutton.
５−２ CheckingSwitchSettingandOperation
Makesurethatthefunctionselectorswitchissettothecorrectposition,
the instrument is set to the correct mode and the data hold function is
deactivated.Otherwise,desiredmeasurementcannotbemade.(Seesection
6formeasurementinstructionsandsection7fornotesonfunctions.)

  12  
６−１ CurrentMeasurement
WARNING
● Do not make measurement on a circuit above 750V AC. This may
cause shock hazard or damage to the instrument or equipment under
test.
● Transformerjawtipsaredesignednottoshortthecircuitundertest.If
equipment under test has exposed conductive parts, however, extra
precautionshouldbetakentominimizethepossibilityofshorting.
● Donotmakemeasurementwiththebatterycompartmentcoverremoved
fromtheinstrument.
● Donotmakecurrentmeasurementwiththetestleadsconnectedtothe
V/
Ω andCOMterminals.
● When measuring current is not less than 1000A, make sure to stop
measurementwithinthemaximummeasuringtimeshownbelow.
Otherwise,transformerjawsmayheattocauseafireordeformationof
moldedparts,whichwilldegradeinsulation.
1000 〜 1500 Ａ： 15min.1500 〜 2000 Ａ：５ min.
● Keepyourfingersandhandsbehindthebarrierduringmeasurement.
６−１−１ ACCurrentMeasurement(NormalMode)
① Set the function selector switch to the " 〜 400A" or " 〜 2000A"
positionandmakesurethatthecurrentundertestdoesnotexceedthe
upperlimitofthemeasuringrangeyouareselecting.
② Pressthetriggertoopenthetransformerjawsandclampthemontothe
conductorundertest.
６．Measurement
Correct Incorrect

  13  
Ｖｐ
INPUTCurrent
Ｖｐ／√
2
PeakHold
③ Takethereadingonthedisplay.
NOTE
● During current measurement, keep the transformer jaws fully closed.
Otherwise, accurate measurement cannot be made. The maximum
measurableconductorsizeis54.5mmindiameter.
● Whenmeasuringalargercurrent,thetransformerjawsmaybuzz.This
isnotafaultanddoesnotaffecttheaccuracyatall.
６−１−２ PeakCurrentMeasurement
① Setthefunctionselectorswitchtothe" 〜 400A"or" 〜 2000A"position.
② Pressthemodeswitchtoselectthepeakmode."PEAK"willbeshown
onthedisplay.
③ Pressthetriggertoopenthetransformerjawsandclampthemontothe
conductorundertest.Then,presstheresetswitch.
④ Thedisplayshowsthecurrent'screstvaluedividedbythesquareroot
of two.  Therefore, when the current is sinusoidal, the reading equals
RMSvalue.
⑤ Toresetthedisplay,presstheresetswitch.
 （ Note:Whenthisisdone,thereadinggoesoffforaboutonesecond. ）
⑥ Afterthemeasurementisover,pressthemodeswitchtoreturntothe
normalmode.
NOTE
● Inthepeakmeasurementmode,thedataholdfeatureisdisabled.
● When a measured value is 9 counts or less, it is corrected to 0 (KEW
SNAP2002R).

  14  
６−２ VoltageMeasurement
WARNING
● Donotmakemeasurementonacircuitabove750VACor1000VDC.
Thismaycauseshockhazardordamagetotheinstrumentorequipment
undertest.
● Donotmakemeasurementwiththebatterycompartmentcover
removed.
● Keepyourfingersandhandsbehindthebarrierduringmeasurement.
６−２−１ DCVoltageMeasurement
① Setthefunctionselectorswitchtothe" V"position.
② Slidetheterminalcovertotheleft.PlugtheredtestleadintotheV/ Ω
terminalandtheblacktestleadintotheCOMterminal.
③ Connecttheotherendofthetestleadstothecircuitundertest.Take
thereadingonthedisplay.Whentheredleadisthenegativepotential,
the" ー "signisshownonthedisplay.
６−２−２ ACVoltageMeasurement
① Setthefunctionselectorswitchtothe" 〜 V"position.
② Slidetheterminalcovertotheleft.PlugtheredtestleadintotheV/ Ω 
terminalandtheblacktestleadintotheCOMterminal.
③ Connecttheotherendofthetestleadstothecircuitundertest.Take
thereadingonthedisplay.
NOTE
● Forhighsensitivity,therearepartswhichdonotindicate" ０ ".
Blacktestlead Redtestlead

  15  
Black
testlead Redtestlead
６−３ ResistanceMeasurement
WARNING
● Before attempting to make measurement, make sure that the circuit
undertestisnotlive.Theinstrumentisprotectedagainstavoltageup
to600V.
● Donotmakemeasurementwiththebatterycompartmentcover
removed.
● Keepyourfingersandhandsbehindthebarrierduringmeasurement.
６−３−１ ResistanceMeasurement(NormalMode)
① Setthefunctionselectorswitchtothe" Ω / "position.
② Slidetheterminalcovertotheleft.PlugtheredtestleadintotheV/ Ω 
terminalandtheblacktestleadintotheCOMterminal.
③ Shortthetipofthetestleadsandcheckwhetherthedisplayreads"0".
④ Connect the tip of the test leads to the circuit under test.  Take the
readingonthedisplay.
NOTE
● When shorting the tip of the test leads, the display may read a very
smallresistanceinsteadof"0."Thisistheresistanceofthetestleads,
notafault.
● Ifoneofthetestleadsisopen,thedisplayreads"OL".

  16  
６−３−２ ContinuityCheck
① Setthefunctionselectorswitchtothe" Ω / "position.
② Slidetheterminalcovertotheleft.Plugtheredtestleadintothe
V/ Ω terminalandtheblacktestleadintotheCOMterminal.
③ Pressthemodeswitchtosettheinstrumenttothecontinuitycheck
mode.Themeasuringrangeisfixedto400 Ω andthe" "symbol
isshownonthedisplay.
④ Shortthetipofthetestleadsandmakesurethatthedisplayreads
"0"andthebuzzerbeeps.
⑤ Connect the tip of the test leads to the circuit under test.  The
displayreadstheresistanceandthebuzzerbeepswhenthe
readingisnotmorethanabout50 Ω .
NOTE
● Whenshortingthetipofthetestleads,thedisplaymayreadavery
smallresistanceinsteadof"0". Thisistheresistanceof thetest
leads,notafault.
● Ifoneofthetestleadsisopen,thedisplayreads"OL".

  17  
７−１ DataHold
 Thisisafunctionusedtofreezethemeasuredvalueonthe
display.
① Press the data hold switch. The reading becomes frozen and the
"H" symbol is shown on the display, indicating the instrument in
thedataholdmode.
② To exit the data hold mode, press the data hold switch again to
releaseit.
NOTE
● Whenthefunctionselectorswitchisturnedwhiletheinstrumentis
in the data hold mode, the data hold function remains activated.
Tomakemeasurementinthiscase,releasethedataholdswitch
bypressingitandexitthedataholdmode.
● Thedataholdfunctionisdisabledinthepeakmeasurementmode
ontheACcurrentrange.
● Whenthesleepfunctionisactivated,thedataholdmodeturnsto
thenormalmode.
７−２ SleepFunction
 Thisisafunctiontopreventtheinstrumentfrombeingleftpowered
oninordertoconservebatterylife.
① The instrument automatically enters the sleep (powered-down)
modeabout10minutesafterthelastswitchoperation.
② Toexitthesleepmode,pressthedatahold,resetormodeswitch
or turn the function selector switch back to "OFF", then to any
otherposition.
［ HowtoExittheSleepMode ］
 ① Turn the function selector switch from "OFF" to another position
withthedataholdswitchpressed.Then,"P.OFF"isshownonthe
display.  This disables the sleep function and enables continuous
useoftheinstrument.
７．Notes on Functions

  18  
② Toenablethesleepfunction,turnthefunctionselectorswitchback
to"OFF",thentoanyotherposition.
NOTE 
● Theinstrumentconsumessmall amountofcurrentinthe sleep
mode.  When the instrument is not in use, make sure to set the
functionselectorswitchto"OFF". 
７−３ RecorderOutput
 Onlyonthe" 〜 400A"or" 〜 2000A"range,DCvoltageproportional
totheinputcurrentisoutputfromtheOUTPUTterminal.
① Set the function selector switch to the " 〜 400A" or " 〜 2000A"
position.
② Slide the terminal cover to the right and insert the recorder output
plug into the OUTPUT terminal for connection with a recorder or
otherrecordingdevice.
NOTE
● Outputvoltageis1mV/Aonthe" 〜 400A"rangeand0.1mV/Aon
the" 〜 2000A"range. Setan appropriateinputsensitivity onthe
recorder.
● Thepeakholdfunctiondoesnotapplytotherecorderoutputevenif
theinstrumentisinthepeakholdmode.
● Forlongtermmeasurement,disablethesleepfunction.(See
section7-2forsleepfunction.)