Kyoritsu 2434 Bedienungsanleitung
Kyoritsu
Multimeter
2434
Lesen Sie kostenlos die 📖 deutsche Bedienungsanleitung für Kyoritsu 2434 (2 Seiten) in der Kategorie Multimeter. Dieser Bedienungsanleitung war für 11 Personen hilfreich und wurde von 2 Benutzern mit durchschnittlich 4.5 Sternen bewertet
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INSTRUCTIONMANUAL
KEW SNAP
2434
KEW SNAP Series
LEAKAGECURRENTTESTER
KYORITSU ELECTRICAL INSTRUMENTS WORKS, LTD.,
TOKYO, JAPAN
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 safeoperation of the
instrumentandtoretainitinsafecondition.Therefore,readthroughthese
operatinginstructionsbeforestartingusingtheinstrument.
#
WARNING
●
Readthrough and understand instructions contained in this manual
beforestartingusingtheinstrument.
●
Saveandkeepthemanualathandtoenablequickreferencewhenever
necessary.
●
Besuretouse the instrumentonly in itsintended applicationsandto
followmeasurementproceduresdescribedinthemanual.
●
Be sure to understand and follow all safety instructions contained in
themanual.
Notfollowingtheaboveinstructionsmaycauseinjury,instrumentdamage
and/ordamagetoequipmentundertest.
Theinstrumentistobeusedonlyinitsintendedapplications.
Understandandfollowallthesafetyinstructionscontainedinthemanual.
Failuretofollowtheinstructionsmaycauseinjury,instrumentdamageand/
or damage toequipmentunder test. Kyoritsuisby nomeans liableforany
damageresultingfromtheinstrumentincontradictiontothiscautionarynote.
Thesymbol
#
indicatedontheinstrumentmeansthattheusermustrefer
torelatedpartsofthemanualforsafeoperationoftheinstrument.Besure
tocarefullyreadtheinstructionsfollowingeach
#
symbolinthismanual.
#
DANGER
is reservedforconditions andactions thatare likely to
causeseriousorfatalinjury.
#
WARNING
is reservedforconditions and actionsthatcancause
seriousorfatalInjury.
#
CAUTION
isreservedforconditionsandactionsthatcancause
minorinjuryorInstrumentdamage.
Following symbols are used on the instrument and in the instruction
manual.Attentionshouldbepaidtoeachsymboltoensureyoursafety.
#
Refertotheinstructionsinthemanual.
Indicatesaninstrumentwithdoubleorreinforcedinsulation.
Indicatesthatthisinstrumentcanclamponbareconductorswhen
measuringavoltagecorrespondingtotheapplicableMeasurement
category,whichismarkednexttothissymbol.
IndicatesAC(AlternatingCurrent).
IndicatesEarth.
#
DANGER
●
Never makemeasurementonacircuithavingpotential of 300VACor
greater.
●
Do not attempt to make measurement in the presence of flammable
gasses. Otherwise, the use of the instrument may cause sparking,
whichleadstoanexplosion.
●
The transformer jaws are made of metal and their tips are not
completelyinsulated.Beespeciallycarefulabout thepossibleshorting
wheretheequipmentundertesthasexposedmetalparts.
●
Neverattempttousetheinstrumentifitssurfaceoryourhandiswet.
●
Donotexceedthemaximumallowableinputofanymeasurementrange.
●
Neveropenthebatterycompartmentcoverwhenmakingmeasurement.
●
Never tryto make measurement if any abnormal conditions,such as
brokenTransformerjawsorcaseisnoted.
●
Theinstrumentistobeusedonlyinitsintendedapplicationsorconditions.
Otherwise,safetyfunctionsequippedwiththeinstrumentdoesn'twork,and
instrumentdamageorseriouspersonalinjurymaybecaused.
●
Keepyourfingersandhandsbehindthebarrierduringameasurement.
#
WARNING
●
Never attemptto make anymeasurement, if anyabnormal conditions
arenoted,suchasbrokencase,crackedtestleadsandexposedmetal
parts.
●
Do not install substitute parts or make any modification to the
instrument. Return the instrument to Kyoritsu or your distributor for
repairorre-calibration.
#
CAUTION
●
Makesure that the range selector switch is set to an appropriate
positionbeforemakingmeasurement.
●
Donotexposethe instrumentto thedirect sun,extremetemperatures
ordewfall.
●
Be sure toset the range selector switch to the "OFF" position after
use.Whentheinstrumentwillnotbe in useforalong periodoftime,
placeitinstorageafterremovingthebatteries.
●
Usea dampcloth and detergent forcleaning the instrument. Donot
useabrasivesorsolvents.
●
Always switch off the instrument before opening the battery
compartmentcoverforbatteryreplacement.
Measurementcategories(Over-voltagecategories)
Toensuresafeoperationofmeasuringinstruments,IEC61010establishessafety
standards for various electricalenvironments, categorized as O toCAT IV, and
calledmeasurementcategories.
Higher-numbered categories correspond to electrical environmentswith greater
momentary energy,soameasuring instrumentdesigned for CATIIIenvironments
canenduregreatermomentaryenergythanonedesignedforCATII.
O: Circuitswhicharenotdirectlyconnectedtothemainspowersupply.
CATII: Primary electrical circuitsof equipmentconnectedto anACelectrical
outletbyapowercord.
CATIII: Primary electrical circuitsof the equipment connected directlyto the
distributionpanel,andfeedersfromthedistributionpaneltooutlets.
CATIV: The circuit fromthe service drop to the service entrance, and to the
power meter and primary overcurrent protection device (distribution
panel).
2. FEATURES
●
DigitalclamptesterforACleakagecurrentmeasurement.
●
Least affected by external magnetic field, providing wide measuring
rangefromverysmalltolargecurrents.
●
Designed to safety standardIEC 61010-2-032: measurement CAT.
Ⅲ
,
300Vandpollutiondegree2.
●
Data hold function toallow for easy readings in dimly lit or hard-to-
reachlocations.
●
Providesfilteringfunctiontoremovehighfrequencygeneratedbysuch
equipmentasinverters.
●
Sleepfunctionpreventsunnecessarypowerconsumption.
●
Dynamicrangeof4000countsfullscale.
●
Largeeasy-to-readLCDdisplaywithletterheightof13mm.
●
Transformerjawsfittedwithguardtofurtherimprovesafety.
O: Device which is
not directly
connected to the
mains power supply
3. SPECIFICATIONS
Measuringrangesandaccuracy
Range MeasuringRange Accuracy(Frequencyrange)
400mA 0
〜
399.9mA
±
2.0%rdg
±
4dgt
(
50/60Hz
)
±
3.0%rdg
±
5dgt
(
40
〜
400Hz
)
4A 0
〜
3.999A
100A 0
〜
100.0A
Whenmeasuring current which pulse element is superposed,differences of the
indicatedvaluemaybecausedbetweenranges,ifthe peakvalue exceedsthe
measurement range to a large extent.In this case, the reading at the bigger
rangeshouldbetakenasarightvalue.
Sensitive transformer jawsare used forLeakage clampmeter.Becauseof the
characteristics of transformerjaws, which can beopened and closed, it is
impossibletoeliminate theinterferenceof externalmagneticfieldcompletely.If
there aresomething, which generating large magneticfield, at anearbysite,
current valuecan be displayed (
0
cannot be displayed.)before clampingon
theconductor.Forsuchacase,pleaseusetheinstrumentatalocationfarfrom
thething,whichgeneratingmagneticfield.
Followingarethetypicalthingsgeneratingmagneticfield.
Conductor fed large current, Motor, Equipment which has magnet, Integrating
wattmeter
Measuring method:
DualIntegration
Display:
Liquid crystal display with maximum reading of
3999
Low battery warning:
"BATT"markappearsonthedisplay
Overrange Indication:
"OL"appearsonthedisplaywhenupperlimitof
measuringrangeisexceeded
Response Time:
Approx.2seconds
Sample Rate:
Approx.2.5timespersecond
Location for use
Indooruse,Altitudeupto2000m
Accuracy-insured
23
℃±
5
℃
,relativehumidity85%orless
Temperature and
(withoutcondensation)
Humidity Ranges:
Operating Temperature
0-40
℃
,relativehumidity85%orless
and Humidity Ranges:
(withoutcondensation)
Storage Temperature
-20-60
℃
,relativehumidity85%orless
and Humidity Ranges:
(withoutcondensation)
Power Source:
Two1.5VR03(UM-4)batteries
Current Consumption:
Approx.4mA
Measurement Time:
Approx.150hours
Sleep Function:
Automatically powered down in about 10
minutesafterthelastswitchoperation
Safety Standard:
IEC61010-1,IEC61010-2-032
measurement CAT.
Ⅲ
300V, pollution degree 2
IEC61326(EMC),EN50581(RoHS)
Overload Protection:
120Armsmax.for10seconds
Withstand Voltage:
3470Vrms (50/60Hz) for 5 seconds between
metalpartoftransformerjaws andhousing case
(excepttransformerjawcase)
Insulation Resistance:
10M
Ω
or greaterat1000Vbetween metal part
of transformer jaws and housing case (except
transformerjawcase)
Conductor Size:
Approx.28mmindiametermax.
Dimensions:
169(L)
×
75(W)
×
40(D)mm
Weight:
Approx.220gincludingbatteries
Accessories:
TwoR03(UM-4)batteries
CarryingcaseModel9097
Instructionmanual
Optional Accessories:
Multi-TranModel8008
4. INSTRUMENT LAYOUT
5. PREPARATIONS FOR MEASUREMENT
5-1 Checking Battery Voltage
Set the Range Selector Switch to any position other than the OFF
position. If the marks on the display is clearly visible without "BATT"
mark showing, batteryvoltageis OK.If thedisplayblanks or "BATT"is
indicated, replace the batteries according to section 8: Battery
Replacement.
NOTE
When the instrument is left powered on, the Sleep function
automaticallyshutthepower off;The display blankseven ifthe
RangeSelector Switch is set to a position other than the OFF
positioninthisstate.Topowerontheinstrument,turntheRange
SelectorSwitchorpressanybutton.Ifthedisplaystillblanks,the
batteriesarecompletelyexhausted.Replacethebatteries.
5-2 Checking Switch Setting
Make sure that the Range Selector Switch is set to the appropriate
range.
Alsomakesurethat dataholdfunctionisnotenabled. Ifinappropriate
rangeisselected,desiredmeasurementcannotbemade.
Tr an s fo rm J aw s
Tr ig ge r
Ra ng e S el ec to r Swi t ch
Ha nd Str a p
Di sp l ay
Frequency Selector Button
Data Hold Button
●LCD
Low Battery Warning
Frequency Response :
Wide
Frequency Response :
50/60Hz
Data Hold Indication
Unit
Ba rri e r
Barrier is a part providing protection against electrical shock and
ensuring the minimum required air and creepage distances.
3-phase 3-wire system
(In 4-wire system with neutral,
clamp onto all 4 wires)
Single-phase 2-wire system
(in 3-wire system with neutral,
clamp onto all 3 wires)
Load
Load
6. OPERATING INSTRUCTIONS
#
DANGER
●
In order to avoid possible shock hazard, never make measurement
oncircuitshavingapotentialof300VACorgreater.
●
The transformer jaws are made of metal and their tips are not
completely insulated. Be especially careful about the possible
shortingwheretheequipmentundertesthasexposedmetalparts.
●
Never make measurement with the battery compartment cover
removed.
●
Keepyourfingersandhandsbehindthebarrierduringmeasurement.
#
CAUTION
●
Take sufficient care to not to apply shock, vibration or excessive
force to the jaw tips. Otherwise, precisely adjusted Transformer
Jawtipswillbedamaged.
●
When a foreign substance is stuck in the jaw tips or they cannot
properlyengage,thetransformerjawsdonotfullyclose.Insucha
case,donotreleasethejawtriggerabruptlyorattempttoclosethe
transformer jaws by applying external force. Make sure that the
jaws close by themselves after removing the foreign substance or
makingthemfreetomove.
●
Themaximumsizeofaconductortobetestedis28mmindiameter.
Accuratemeasurementcannotbemadeonaconductorlargerthan
this,becausethetransformerjawscannotfullyclose.
●
Whenmeasuringlargecurrent,thetransformerjawsmaybuzz.This
hasnoeffectontheinstrument'sperformanceorsafety.
6-1 Leakage Current Measurement
(1)Set the Range Selector Switch to the desired position. Current to
measureshouldbewithintheselectedmeasuringrange.
(2)Measuringoutofbalanceleakagecurrent(SeeFig.1):
Clampontoallconductorsexceptagroundedwire.Measuredcurrent
valueisshownonthedisplay.
(3)Measuringearthleakagecurrent(SeeFig.2):
Clamponto agroundedwire.Measured currentvalue isshown on the
display.
Fig.1Measuringoutofbalanceleakagecurrent
Fig.2Measuringearthleakagecurrent
6-2 How to Use Frequency Selector Button
Whenhigh frequencies from suchequipment as inverters are present in
the circuit under test, the instrument measures AC current of not only
50Hz or 60Hz of fundamental frequency but also of these high
frequenciesandharmonics.
To eliminate the effect of such high frequency noise and measure AC
currentof50Hzor60Hzfundamentalfrequency,a"high-cut"filtercircuit
in incorporated into the instrument which works when "50/60Hz"
frequencyresponseisselectedwiththeFrequencySelectorButton.Cut-
off frequency of the "high-cut" filter is about 160Hz with attenuation
characteristicofapprox.-24dB/octave.
When the Frequency Selector Button is pressed, "50/60Hz" mark is
shown on the left side of the display. When the Frequency Selector
Button is pressed again, frequency response is switched to WIDE with
"WIDE"markshownonthedisplay.
OutputcharacteristicareshowninFig.3.
Fig.3KEWSNAP2434FrequencyCharacteristic
Note:
Characteristicof-24dB/octiavemeansthatsignalmagnitudedeclinesto
about one sixteenth of that at the initial frequency when frequency
doubles. KEW SNAP 2434 have the following two settings for the
FrequencySelectorButton.
WIDE(40Hz-):Permits measurement of currents of fundamental
frequencies as well as currents of high frequencies
generatedbysuchequipmentasinverters
50/60Hz(40-approx.160Hz):Filters out high frequency currents and
measurescurrentoffundamentalfrequency
only
100%
50%
20%
10%
5%
5k1k 2k500100 200502010
ー30
ー20
ー10
0
Attenuation〔dB〕
10
Frequency〔Hz〕
Percentage
Typical characteristic:
400mA/4A Range
Typical characteristic:
“WIDE”frequency response
Typical characteristic:
“50/60Hz”frequency response
high-cut filter -24dB/oct
Typical characteristic:
100A Range
Load
Grounded wire
Recently there has been increased use of power through inverters,
switching regulators, etc. When the high frequency noise from such
appliancesleaksorflowsintothegroundthroughcapacitorsnotfiltering
completely, the earth leakage breaker may trip even though there is no
"actual" leakage. In such a case, the instrument do not give leakage
currentreadingif"50/60Hz"frequencyresponseisselected.
Takecurrentreadingswiththe50/60HzandWIDEfrequencyresponses
respectivelytomakeeffectiveuseoftheFrequencySelectorButton.
6-3LoadCurrentMeasurement
(1)
Set the Range Selector Switch to the desired position.
Current
to
measureshouldbewithintheselectedmeasuringrange.
(2)
Measuringloadcurrent(SeeFig.4):
Press the jaw trigger to open the transformer jaws and close
them
over one conductor only.Measured current value is shown
on the
display.
Fig.4Measuringloadcurrent
7. OTHER FUNCTIONS
7-1 Sleep Function
Thisisafunctiontopreventtheinstrumentfrombeingleftpowered
on
inordertoconservebatterylife.
The instrument automatically enters the Sleep (powered-down) Mode
about10minutesafterthelastswitchoperation.
To exit the Sle ep Mode, p ress th e Dat a Hold o r Freque ncy S elec tor
Button or turn th e Range Sel ector Switc h to O FF, then to any other
position.
HowtoExittheSleepMode:
TurntheRangeSelectorSwitchfrom
OFF
toanotherpositionwith
the Data Hold Butto n p ressed. Th en,
P.OFF
is show n on the
display.ThisdisablestheSleepfunctionandenablescontinuoususeof
theinstrument.
To ena blet heS leep fu nctio n,t urn the Range Selector Switch ba ckto
OFF
,thentoanyotherposition.
Note:
Thein strum ent con sumess mallamou ntof cu rrent int heSleep M ode.
Whentheinstrumentisnotinuse,makesuretosettheRangeSelector
Switchto
OFF
.
7-2 Date Hold Function
Thisisafunctiontofreezethereadingsonthedisplay.WhentheData
Hol dBut ton is pre ssed onc e, th e current rea ding is held even thoug h
currentundertestvaries."H"markisshownontheupperrightcornerof
thedisplay.
Toexitthedataholdmode,presstheDataHoldButtonagain.
Note:WhentheSleepfunctionworkswhiletheinstrumentisinthedata
holdmode,dataholdiscancelled.
8. BATTERY REPLACEMENT
#
CAUTION
●
Donotmixnewandoldbatteries.
●
Install batteries in the orientation as shown inside the battery
compartment,observingcorrectpolarity.
●
In order to avoidpossible shock hazard, always set the Range
SelectorSwitchtotheOFFpositionbeforetryingtoreplacethe
batteries
When the battery voltage warning mark "BATT" is shown on the top
left corner of the LCD, replace the batteries. Note that the display
blanks and"BATT" mark is not shown if the batteriesare completely
exhausted.
(1)SettheRangeSelectorSwitchto"OFF."
(2)Loosenthebattery-compartment-cover-fixingscrewonthelowerback
oftheinstrument.
(3)ReplacethebatterieswithtwonewR03(UM-4)1.5Vbatteries.
(4)Put the battery compartment
cover back in place and tighten
thescrew.
Note:Use alkaline batteries to perform
measuringforlong
9. OPTIONAL ACCESSORIES
Model8008(Multi-Tran)
These models help KEW SNAP 2434 to measure current greater than
1000Aortomakemeasurementonalargebus-barorconductor.
(1)SettheRangeSelectorSwitchto"100A".
(2)As shown, open the jaws and close them over the pickup coil of
Model8008.
(3)ClamponaconductorwithModel8008.
(4)Takethereadingandmultiplyitby10.
Note:Model 8008 cannot be usedfor leakage current measurement. For
detailed specifications, refer to the instruction manual for Model
8008.
Max.ConductorSize
MeasuringRange
CurrentTransformation
Ratio
M-8008
100mmindiameter
0
〜
1000A 10:1
KEW2434
M- 8 0 0 8
Pick u p Coil
Conductor
Transformer
jaws
10
Screw Battery
Compartment
Cover
Batteries
92-1509B2-17
DISTRIBUTOR
Kyoritsu reserves the rightsto changespecifications ordesigns
describedinthismanualwithoutnoticeandwithoutobligations.
Load
Produktspezifikationen
Marke: | Kyoritsu |
Kategorie: | Multimeter |
Modell: | 2434 |
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