KYORITSU 4116A Leitfaden

MODEL4116A,4118A,4120A

DIGITALPSC-LOOPTESTER

INSTRUCTIONMANUAL

KYORITSUELECTRICALINSTRUMENTS

WORKS，LTD.

CONTENTS

1.SAFETESTING ..............................................................................1

2.PROCEDUREOFREMOVINGCOVER .........................................3

3.FEATURES ......................................................................................4

3.1InstrumentLayout ....................................................................4

3.2TestLead ..................................................................................5

3.3Features ...................................................................................5

4.SPECIFICATIONS ..........................................................................7

5.OPERATINGINSTRUCTIONS .......................................................8

5.1InitialChecks .............................................................................8

5.2MeasurementoftheLoopImpedance ......................................9

5.3MeasurementofProspectiveShortCircuitCurrent .................10

6.DETAILEDEXPLANATION ...........................................................10

6.1MeasurementofFaultLoopImpedanceand

ProspectiveFaultCurrent .......................................................10

6.2MeasurementofOLD-TTSystem ............................................15

6.3MeasurementofLineImpedanceand

ProspectiveShortCircuitCurrent ............................................16

7.SERVICING ...................................................................................17

8.CASEANDSTRAPBELTASSEMBLY .........................................17

―

1.SAFETESTING

Electricityisdangerousandcancauseinjuryanddeath.Alwaystreatit

withthegreatestofrespectandcare.Ifyouarenotquitesurehowto

proceed,stopandtakeadvicefromaqualifiedperson.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.

IMPORTANT:

1.Thisinstrumentmustonlybeusedbyacompetentandtrained

personandoperatedinstrictaccordancewiththeinstructions.

KYORITSUwill notaccept liabilityfor anydamage orinjury caused

bymisuseornon-compliancewiththeinstructionsorwiththesafety

procedures.

2. Itisessentialtoreadandtounderstandthesafetyrulescontainedin

theinstructionsorwiththesafetyprocedures.

3. Thesymbolindicatedontheinstrumentmeansthattheusermust

referto therelated sections inthe manualfor safeoperation ofthe

instrument.Besuretocarefully read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 a

minorinjuryorinstrumentdamage.

―

DANGER

●Thisinstrumentisintendedonlyforuseinsinglephaseoperation

at230V+10% -15%ACphaseto earthorfor useinOLD-TT

systemphasetoneutral.

● Whenconductingtestsdonottouchanyexposedmetalwork

associatedwiththeinstallation.Suchmetalworkmaybecomelive

forthedurationofthetest.

● Whentesting,always besureto keepyourfingers behindthe

safetybarriersonthetestleads.

● Besureto removethetest leadfromthe mainspowersupply

promptlyaftermeasurement.Donotleavetheinstrument

connectedtothemainspowersupplyforalongtime.

WARNING

●Never open the instrument case -therearedangerousvoltages

present.Ifafaultdevelops,returntheinstrumenttoyourdistributor

forinspectionandrepair.

●Iftheoverheatsymbolappearsinthedisplay( )disconnectthe

instrumentfromthemainssupplyandallowtocooldown.

●Ifabnormalconditions ofanysortare noted(suchasa faulty

display,unexpected readings,broken case,cracked testleads,

etc)donotusethetesterandreturnittoyourdistributorforrepair.

●Neverattempttousetheinstrumentiftheinstrumentoryourhand

iswet.

CAUTION

●Forthosetesterswithout theD-LOKcircuitry(models4116A,

4118A)allRCD's(RCCB,ELCB)inthecircuitmustbeby-passed

forthedurationofthetest(exceptonloop-2000Ω range).

DonotoperatetheRCDTestButtonwiththeRCDby-passed.

●Duringtestingitispossiblethattheremaybeamomentary

degradationofthereadingduetothepresenceofexcessive

transientsordischargesontheelectricalsystemundertest.

Shouldthis be observed,the testmust berepeated toobtain a

correctreading.Ifindoubt,contactyourdistributor.

●Use a damp cloth and detergent for cleaning the instrument. Do

notuseabrasivesorsolvents.

―

2.PROCEDUREOFREMOVINGCOVER

Model4116A,4118Aand4120Ahaveadedicatedcovertoprotectagainst

animpactfromtheoutsideandpreventtheoperationpart,theLCDandthe

connectorsocketfrombecomingdirty.Thecovercanbedetachedandput

onthebacksideofthemainbodyduringmeasurement.

Fig.2

2.1Methodofremovingthecover

2.2Methodofhousingthecover

Fig.1

―

3.FEATURES

3.1InstrumentLayout

1............LCDdisplay

2............WiringcheckLEDs

3...........Testbutton

4............Rangeswitch

5............Connector

LCD Connector

Fig.3

DANGER

●Useoriginaltestleadonly.

●Max.allowedvoltagebetweenmainstestterminalsandgroundis

300V.

●Thisinstrumentisintendedonlyforuseinsinglephaseoperation

at230V+10% -15%ACphaseto earthorfor useinOLD-TT

systemphasetoneutral.

①②

③④

⑤

Wiringcorrect

（GreenLED's）

ReversedL/Nterminals

（RedLED）

―

3.2TestLead

TheinstrumentissuppliedwithModel7125leadatsocketoutletsandModel

7121distributionboardlead.

(1)Model7125

(2)Model7121

(IncludedasstandardequipmentforM-4118Aand4120A.OptionalforM-4116A.)

3.3Features

3.3-1TestRange(Function):

Note:

●*D-LOK=Automaticdevice(RCD)lock

●D-LOKdosenotoperateontheLoop-2000Ω.

●MainsvoltagewithwhichD-LOKoperatesisasshowninthetablebelow.

3.3-2AppliedStandards:

Instrumentoperation: IEC/EN61557-1,IEC61557-3

Safety: IEC/EN61010-1CATⅢ(300V)-instrument

IEC/EN61010-2-31CATⅢ(300V)-testlead

Protectiondegree: IEC60529(IP54)

Model

D-LOKCircuit*

Loop0-19.99Ω/

0-199.9Ω/0-1999Ω

PSC0-199.9A/

0-1999A/

0-4.00kA

M-4120A

○

M-4118A

○

M-4116A

○

Black-Neutral

Red-Phase

Green-Earth Fig.4

Range

Loop200Ω/PSC200A

Loop20Ω/PSC2000A,20kA

D-LOKOperatingVoltage

190〜253V

205〜253V

―

3.3-3Model4116A,4118Aand4120Ahavethefollowingfeatures:

●Batteryisnotused Allmodelsarenotbattery-operated,butoperateby

thevoltagesuppliedfromthesystem.

●Wiringcheck ThreeLEDsindicateifthewiringofthecircuit

undertestiscorrect.TheP-EandP-NLEDs

illuminatewhenthe wiringpolarityofthecircuit

undertestiscorrect.

TheReverseLEDislitwhenPandNare

reversed.

●Overtemperature Detectsoverheatingoftheinternalresistor

displayingawarningsymbol()andautomatically

haltingfurthermeasurements.

●Overloadprotection Haltsmeasurementtopreventdamages tothe

bodywhenvoltagebetweenVL-PEis260Vor

more.

"VL-PEHi"isshownonthedisplay.

●D-LOKcircuit Model4120AwithuniqueD-LOKcircuitavoidsthe

needtoby-passmostRCD's.

●15mALoop Loopimpedance 2000Ω rangemeasurementis

carriedoutwithlowtestcurrent(15mA).The

currentwill notcause trippingoutinvolved RCD

eventhe one withthe lowestnominal differential

current(30mA).

●Display Theliquid crystaldisplay has31/2 digitswith a

decimalpoint andunitsof measurement(Ω,A,

kA,V).

●ManualandAutotestmode

Manual − Pressandreleasethe"PresstoTest"button.Theresultwillbe

displayedfor3sandthenthedisplaywillreverttoACvoltage.

Autotest− The"PresstoTest"buttoncanbeturnedclockwisetolockit

down.Inthis automode,whenusing distributionboardlead

M-7121,tests areconductedby simplydisconnectingand

reconnectingtheredphaseprodoftheM-7121avoidingthe

needtophysicallypressthetestbuttoni.e."handsfree".

protection



measurement

CAUTION

●TheD-LOK circuitsmay notby-passsome RCD'sand thiswill

resultintheRCDtrippingoutastheywoulddowithaconventional

looptester. Also,in thecaseof highsensitivity RCD'sratedat

10mAorlesstheD-LOKcircuitsmaynotfunction.

―

4.SPECIFICATIONS

●MeasurementSpecification

Instrumentdimensions 186×167×89mm

Instrumentweight M-4120A/960g,M-4116AandM-4118A/750g

Referenceconditions Specificationsarebasedonthefollowingconditions

exceptwhereotherwisestated:

1． Ambienttemperature: 23± 5℃

2． Relativehumidity:45%to75%

3． Position:horizontal

4． ACpowersource:230V,50Hz

5． Altitude:Upto2000m

Operatingtemperature 0 to +40℃, relativehumidity80%orless,no

condensation.

Storagetemperature

−

20to +60℃,relativehumidity75% orless,no

condensation.

Symbolsusedonthe Equipmentprotected throughoutby DOUBLE

INSULATIONorREINFORCEDINSULATION.

Caution（refertoaccompanyinginstruction

manual）

andhumidity

instrument

LoopImpedance(IEC61557-3)

ProspectiveShort-circuitCurrent(M-4118A,M-4120A)

Voltage

Range

20Ω

200Ω

2000Ω

Measuringrange

0.00〜19.99Ω

0.0〜199.9Ω

0〜1999Ω

Nominaltest

urrent

at0Ω externalloop

25A/20ms

2.3A/40ms

15mA/280ms

Accuracy

±(2%rdg+4dgt)

Range

200A

2000A

20kA

Measuringrange

0.0〜199.9A

0〜1999A

0.00〜 4.00kA

Nominaltest

urrent

at0Ω externalloop

2.3A/40ms

25A/20ms

Accuracy

Consideraccuracy

ofLoopImpedance

Measuringrange

110〜 260V

Accuracy

±(2%rdg+4dgt)

―

5.OPERATINGINSTRUCTIONS

5.1InitialChecks-Tobecarriedoutbeforeanytesting.

(1)TestLeadConnection

Insertthe leadplug intothe connectoron theinstrument correctlyas

shownbelow.

(2)WiringCheck

Beforepressingthe"TestButton"alwayschecktheLED'sforthe

followingsequence:

P-EGreenLEDmustbeON

P-NGreenLEDmustbeON

RedLEDmustbeOFF

CAUTION

●Alwaysinspectyourtestinstrumentand leadaccessories for

abnormalityordamage. IfabnormalconditionsexistDO NOT

PROCEEDWITHTESTING.

LeadPlug Fig.5

●OperatingErrorofLoopImpedance(61557-3)

Range

20Ω

200Ω

2000Ω

Measuringrangetokeep

operatingerror

0.20〜 19.99Ω

20.0〜 199.9Ω

200〜 1999Ω

Maximumpercentage

operatingerror

±30%

Theinfluencingvariations used for calculatingthe operatingerrorare

denotedasfollows:

Temperature：0℃ and40℃

Phaseangle：Ataphaseangle0゜to18゜

Systemfrequency：49.5Hzto50.5Hz

Systemvoltage：230V+10%-15%

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