ETCR 7100 User manual

CONTENT
I. SafetyPrecautionsAnd Procedures ................................................1
1. PreliminaryInstructions................................................................2
2. DuringUse....................................................................................2
3. AfterUse.......................................................................................3
II. Introduction.........................................................................................3
III. Model..................................................................................................4
IV. ElectricalSymbols............................................................................4
V. TechnicalSpecification......................................................................4
VI. Instrument Structure.........................................................................6
VII. LCD Display.....................................................................................7
VIII. Method ofOperation......................................................................7
1. SwitchOn/Off...........................................................................7
2. DataHold/Storage......................................................................7
3. DataAccess/Exit.......................................................................8
4. DataUpload...............................................................................8
5. DeleteData.................................................................................8
6. GeneralMeasurement................................................................8
7PEAKMeasurement...............................................................10
IX. BatteryReplacement.....................................................................10
XI. Accessories.....................................................................................11

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I. SafetyPrecautionsAndProcedures
ThisinstrumentwasdesignedincompliancewithIEC1010-1&IEC1010-2-032
safetyguidelinerelativetoelectronicequipment.
Foryourownsafetyandtoavoiddamagingtheinstrumentyouare
recommendedtofollowtheproceduresdescribed inthismanualandread
carefullyallinstructionsprecededbythissymbol
Beforeand during measurementskeeptothefollowinginstructions:
Donot takecurrent measurementsinwet places
Donottakethemeasurementsinthepresenceofexplosivegasand
combustiblesorindustyplaces
Avoidanycontactwiththecircuitundertesteventhough youarenot
takinganymeasurement
Avoidanycontact withexposedmetalparts, unusedmeasuring terminals,
circuitsetc.Donottakeanymeasurementwheneveranomalousconditions
occursuchasdeformations,breaks,leakages,blinddisplayetc
Theherewithsymbolsareusedinthismanualandonthemeter
CAUTION:refertotheinstructionmanual.Animproperusemay
damagetheinstrument oritscomponentsaswellasendangertheuser.
High voltagedanger:riskof electricshock

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1.PreliminaryInstructions
Thisinstrumenthasbeendesignerforuseinenvironmentswithpollution
degree2
Itcanbeusedforvoltageandcurrentmeasurementson electrical
installationswithovervoltageCATIII 600V
Youarerecommendedtorespecttheusualsafetyregulationsaimed at
protectingyouagainstdangerouscurrentandprotectingtheinstrument
againstimproperuse
Onlytheoriginalaccessoriessuppliedalongwiththeinstrumentguarantee
compliancewiththesafetystandardsinforce.Theymustbeinagood
conditionsand,if necessary,replacedwithidenticalones
Donottestnorconnecttoanycircuitexceeding thespecifiedoverload
protection
Donottakemeasurementsunderenvironmentalconditionsexceeding the
limitsindicatedinthismanual
Makesurethatbatteriesarecorrectlyinstalled
2. During Use
You arerecommendedtoread carefullythefollowinginstructions:
CAUTION
Failuretocomplywithwarningsandinstructionsmaydamagethe
instrumentand/oritscomponentsaswellasinjuretheoperator
Donotmeasureinthepresenceofexternalvoltages.Althoughthe
instrumentisprotected,anexcessivevoltagemaycausemalfunction
Avoidsubmittingtheinstrumenttovoltagewhilemeasuring(i.e.atestlead
slipping offthemeasuring pointaccidentallytouchinganenergizedpoint)

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CAUTION
Ifthe “lowbattery”symbol isdisplayedduringuse
interrupt testing,switchoff theinstrumentandreplacebatteries.
u(Takenoteofthepolaritywhenreplacethebattery.)
3.AfterUse
Turnofftheinstrument pressingON/OFFkeyafterusingit
If youexpect nottousetheinstrumentforalongtimeremovebatteries
II. Introduction
ETCR7100 seriesof Super-largeCaliberLeakageClampMeter iswell
designedand manufacturedformeasuring ACleakagecurrent, current,
voltage,adoptthelatestCTtechnologyand digitalintegratedtechnology.Its
largecaliber108mm×148mm can clampelectriccableof 108mmdiameter,or
160mm×4mmflatcableandsteelearthwires.Itissuitableforleakagecurrent
measurementofcableand transformerearthsteel.Fullautomaticallyand
LCD display,allthedataaredisplayedinthescreen,whichisveryclearand
convenient.Themeteriswidelyusedinelectricpower,communication,
meteorology,railway,oilfield,architecture,measuring,teaching researchunit,
industrialminingenterprises, etc.
ETCR7100 seriesof Super-largeCaliberLeakageClampMeter’s
clampcoreismadeofspecialalloy,adoptthelatestmagneticshielding
techniques,toensurethehigh precision,highstabilityandhighreliabilityof
perennialuninterruptedmeasurement.Themetercanstore99 setsofdata,
withRS232interface, upload storeddatatothecomputerthrough thesystem
software,implementingonlinereal-timemonitoring,historicalinquires,

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dynamicdisplay.Withthefunction ofhistoricaldataread,preserve,print,and
backlight, datahold,etc.It isanecessarytoolforelectricalsafetytesting.
III. Model
Model Range(AC) Resolution Note
ETCR 7100 0.0mA-3200A 0.1mA Measureleakage
current
ETCR 7100A 0.0A-4000A 0.1A Measurebig
current
IV. Electrical Symbols
Extremelydangerous!Theoperatormuststrictlyabidebythesafety
rules;otherwisethereisrisk ofelectricshock,resultinginbodily
injuryorfatalities.
Dangerous!Theoperatormuststrictlyabidebysafetyrules;
otherwisethereisriskofelectricshock,resultinginbodilyinjuryor
fatalities.
Warning! Safetyrulesmust bestrictlyabidedby, otherwisepersonal
injuryorequipmentdamagemaybecaused.
AlternateCurrent AC）
DirectCurrent DC）
DoubleInsulation
V. TechnicalSpecification
Function MeasureACleakagecurrent, bigcurrent(particularly suitableforleakagecurrentmeasurementofcable
and transformerearthsteel)
Power 6VDC(LR6×4alkalinedrybatteries,continuously
working for12hours)
TestMode ClampCT,integralmode
ClampSize 108mm×148mm (canclampelectriccableof108mm diameter,or160mm×4mmflatcableand steelearth
wires)
Measurement
Range(AC) ETCR7100:0.0mA~3200A
ETCR7100A:0.A~4000A
Resolution(AC) ETCR7100:0.1mA

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ETCR7100A:0.1A
Measurement
Accuracy(AC)
(23°C±3°C,
below70%RH,
measuredwire
atthecenterof
theclamp)
0.0mA~499A±2%±5dgt
500A~999A±3%±5dgt
1000A~2999A±4%±5dgt
3000A~4000A±5%±5dgt
MeasuredWire
Position Measuredwireatapproximatelythegeometriccenter oftheclamp
DataStorage 99 sets,“FULL”symbolindicatethememoryisfull
RS232 Interface
WithRS232interface,downloaddatatocomputerfor
analysisandmanagement
Communication
Wire RS232 communication wire,1.8m
Frequency 50Hz,60Hzautomaticidentification
GearShift Automaticshift
SampleRate About2times/second
LineVoltage BelowAC600Vlinemeasurement
DisplayMode 4digitalLCD display,length47mm×width28.5mm
MeterSize Length350mm ×Width180mm ×Height55mm
Backlight Suitablefordimplaces
DataHold “HOLD”symbolappears
Overflow “OL”symbolappears
Automatic
Shutdown Automaticallyshutdownabout5minutesafterpower on toreducebatteryconsumption
Voltage
Detection
Lowbatterysymbol “"appearstoremindthe
replacementofbatterywhenthebatteryvoltagedrops
below5.2V.
WeightofMeter 1.5kg(withbatteries)
Weightof
Package 3kg(withaccessories)
Working
Temperature
and Humidity -10°C~40°C;80%rh
Storage
Temperature
and Humidity -10°C~60°C;below70%rh
Insulation AC2kV/rms(betweencoreand shell)

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strength
Safety
Specifications
IEC1010-1,IEC1010-2-032,2classofpollution,CAT
III 600V
VI. InstrumentStructure
1. Clamp(108mm×148mm)
2. Lockswitch(afterlock,theclampcan’tbeopen)
3. HOLD key4. PEAK key
5. LCDdisplay6.RS232interface
7.Openinglever8. POWER key
9. Batterycover10.Batterycoverscrew(1piece)
11. Upanddowncoverconnectingscrews(6pieces)

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VII. LCDDisplay
⑴.PEAK measurement modesymbol
⑵.Symboloflowbattery&voltage(displaywhenbelow4.8V)
⑶.Symbolofdatastorage
⑷.Symbolofdataaccess
⑸.2-digitalNo.ofdatastorageunit
⑹.Current unit(mAorA)
⑺.Datalock symbol
⑻.Metricationdecimalpoint
⑼.4-digitalLCD figuresdisplay
⑽.SymbolofAC
VIII. Method ofOperation
1.SwitchOn/Off
Press POWER keytoswitchon,LCD display,intestmode,press
POWER keytoswitchoff.Themeterwill automaticallypoweroffafter
booting 5minuteslater.IfLCD displayisdarker, maybethebatteryvoltage
istoolow,pleasereplacebatteries.
Indataholdmode,firstlypress HOLD keytocancelthelock,then
press POWER keytoswitchoff.
2.DataHold/Storage
Intestmode,press HOLD keytolockcurrentlydisplayedvalueand
display “HOLD “symbol.Atthesametime,thislockedvalueasasetofdata
followedbyauto-IDand store,and “MEM”symbolflashonetime.Themeter
can store99 setsofdata.Ifthememoryisfull,display “FULL”symbol.

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3.DataAccess/ Exit
Intestmode,press PEAK and POWER keytoaccessdatainquiryform
group “R01”,and display “MR”symbol.Press PEAK or POWER keyto
increaseordecreasethepagenumber,itwillautomaticallyreturnbackto
group01whenaccess thelast group.
Press HOLD keytoexit dateinquiry,back totest mode.
4.DataUpload
ConnectingthemeterandcomputerwithUSB-RS232 communication
lineattachedinpackage.Startupthemeter,runsoftware,choosehistory
access, thenread,save, report, printhistorydata,etc.Themoredatastorage,
takethelongertimetoreadit.Historicaldatacan besavedinTxttext orExcel
format.
5.DeleteData
Inthedateinquirymode,press PEAK and POWER keytodeleteall the
storeddata,andreturnback totestmode.Atthesametime, “dEL”symbol
display.
6.General Measurement
Duringthemeasurement,theLCDreal-timedisplaythevalueof
measuredcurrentandleakagecurrent,thevaluedisplayedon LCDchange
withdifferent current and leakagecurrent. Nomeasuredvalue reservedwhen
takethemeterawayfrommeasuredwires,LCD displayzero.
Highvoltage,verydangerous！Onlyqualifiedpersonnel
aftertrainingcouldconductoperationon it.Theoperator
shouldobeysafetyregulations;Otherwisetherewillbethe
dangerofelectricshock resultinginpersonalinjuryor
casualty.
Dangerous!
Ca
nnotbeusedtotestvoltagehigherthan
600V.Otherwisetherewillbethedangerofelectricshock
resulting inpersonalinjuryorcasualty.

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Makesure
theclampwell
closed
whenmeasuring leakage
currentand current.
Makesurethemeasuredwireatapproximatelythe
geometriccenteroftheclamp.
Cleantheclampafterfinishingmeasurement
,regularly
maintainthemeter.
Clamp
livewireandnulllinetogethertomeasureleakage
currentofelectricequipment.(Note:2wires)
Clampearthwiretomeasuregrounding lineleakage
currentofelectricequipment.(Note:singlewire)
Clampfourwiresoftherephasetomeasurethetotal
leakagecurrent. (Note:4wires)
Clampmain
line
tomeasuretotalcurrentofthatmainline.
(Note:singlewire)
Testreferenceillustrations:

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In HOLD mode,press HOLD keytoreturnbacktest mode. Indataaccess
mode,press HOLD keytoexitdataaccess,returnbacktotestmode.In
PEAK mode,press PEAK keytoexit PEAK mode,returnback totest mode.
Afterdeletingdata, itwillautomaticallyreturnbacktotest mode.
7PEAKMeasurement
Themaximumcurrentmeasurement,during measurement, themetercan
automaticallycomparethechangedcurrent,andkeepthe maximumone.
Whentakethemeterawayfromthemeasuredwire,themeasuredvaluecan
alsobekept, sothismodeissuitableforthemeasurementinplaceswhereis
not easilytoread thevaluedisplayedon LCD.
Ingeneraltestmode, press PEAK keytoaccess orexit PEAK testmode.
“”symboldisplays in PEAK measurementmode.Inothermode,should
firstexit and returnback totestmode,and thenoperate PEAK measurement
asabovesteps.
IX. BatteryReplacement
Warning!Make surethebatterycoveriswellclosed
beforemeasurement, otherwisetherewillbedanger.
Take noteofthebatterypolarity,otherwise it
may
cause damagetotheinstrument.
Ifthebatterypowerisnotenough,pleasechangein
time.
Take outthebatteriesifyou expectnottousethe
meterforalong time.
1．“”isdisplayedwhenthepowervoltageislowerthan 5.2V,indicating
that thebatteryshouldbereplaced.
2.Press POWER key, makesurethemeterispoweroff.Loosenthebattery
coverscrew, opentheplate,replacenewbatteriesandcovertheplate,
thentightenscrew.

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3.Press POWER keytocheck whetherthebatteriesaresuccessfully
replaced,repeat step2if itdoesn’t work.
XI. Accessories
MainUnit 1piece
MeterBox 1piece
RS232 DataLine 1piece
Disk 1piece
Battery 4pieces AlkalineDryBatteryLR6）
UserManual 1piece
Guarantee Card 1 piece
Certification 1piece

Manufacturedby
ETCRElectronicTechnologyCompany
Address:F-3F,No.4PengshangZhifuRoad,Jiahe,Baiyun
District,Guangzhou,Guangdong,China
PostCode:510440
Tel:(86-20)6219955662199554
Fax:[phone]
E-mail: [e-mail]
Website: www.etcr.cc