Extech Instruments MA61 User manual

USERGUIDE



TrueRMSMiniClampMeters



MA6160AACClampMeter



MA6360AAC/DCClampMeter

MA61_MA63-en-GB_V1.0 3/15

Introduction

ThankyouforselectingtheExtechInstrumentsTrueRMSMiniClampMeter.TheMA61

measuresACCurrentwhiletheMA63measuresACandDCCurrent.Bothmetersalsomeasure

AC/DCVoltage,Frequency,Resistance,Capacitance,Diode,andContinuity.



TheMiniClampMetersmeasurecurrentinthreeACranges600mA,6000mA,and60A.The

MA63onlymeasuresDCcurrentintworanges6000mADCand60ADC.



TheclampmetersofferadvancedfeaturesthatincludesNCV(non‐contactvoltage)detection

andVFC(variablefrequencycontrol)thatinsertsalowpassfilterinthemeasurementcircuit.



Thisdeviceisshippedfullytestedandcalibratedand,withproperuse,willprovideyearsof

reliableservice.Pleasevisitourwebsite(www.extech.com)tocheckforthelatestversionofthis

UserGuide,ProductUpdates,ProductRegistration,andCustomerSupport.



Features

•TrueRMSforaccuratereadingsofnoisy,distorted,ornon‐sinusoidalwaveforms

•ModelMA61forACCurrent,AC/DCVoltageMeasurements,andRelativefunction

ModelMA63forAC/DCCurrent/VoltageMeasurements,andZerofunction

Frequency,Resistance,andCapacitanceMeasurements

•Compact0.7"(17mm)jawsizeaccommodatesconductorsupto300MCM

•VariableFrequencyControl(VFC):Lowpassfilterforaccuratemeasurementofvariable

frequencydrivesignalsbyfilteringhigh‐frequencyinterference.

•Built‐inNon‐ContactVoltage(NCV)detector

•Fullrangeoverloadprotection

•6000countbacklitLCDdisplay

•DataHoldfreezesreadingondisplay

•LowbatteryindicatorandAutoPowerOfffeaturewithdisable

•CATII‐600VCATIII‐300Vsafetyrating

•Completewithtestleads,carryingcase,andtwoAAAbatteries

MA61_MA63-en-GB_V1.0 3/15

Safety

TheproductdesignmeetsIEC/EN61010‐1andEN61010‐2‐033.PleasereadtheUserGuide

beforeuseandcomplywithallsafetyinstructions.

ThisproductconformstoULStandards61010‐1,61010‐2‐030,61010‐2‐032,61010‐2‐033andis

CertifiedtoCSAstandardsC22.2no.61010‐1,61010‐2‐030andIECstandards61010‐2‐032and

61010‐2‐033.

SafetyNotices

1. PleaseusetheclampmeteraccordingtothisUserGuideotherwisethebuilt‐inprotections

maybecompromised.

2. Pleasecomplywithwithnationalsafetyregulationswithregardtowearingpersonal

protectiveattireandgeartoavoidinjurayanddamagecausedbyarcdischargingincases

wheretheliveconductorisexposed.

3. Donotallowthefingersorthehandabovetheprotectivefingerguardwhiletesting.

4. Pleasechecktheclampmeterhousing,buttons,switches,andinsulatedwiresforcracksor

otherdamagebeforeeachuse.Serviceorreplaceifnecessary.

5. Pleaseremovetheclampmeterfromalllivecircuitsanddisconnectthetestleadsbefore

removingtherearbatterycompartmentcover.

6. Pleasedonotusetheclampmetertomeasuressignalsgreaterthan600Vorfrequencies

higherthan400Hz.

7. Over‐voltagelevel:CATII600V;CATIII300V,pollutionclass2.

8. Workingnearexposedconductorsmustbedonesousingthehighestcaution.Such

conductorspresentalethalelectricshockhazard.

9. Usecautionmeasuringvoltageequaltoorgreaterthan60VDC,30VACor42VAC(peak)as

thesepresenttheriskofelectricshock.

10. Thisdevicehasamaximummeasurementvoltagelimitof600Vandthesafetystandard

complieswithCE/ETLcertification(EN61010‐1,EN61010‐2‐033,andEN61010‐2‐032).

InternationalSafetySymbols

MA61_MA63-en-GB_V1.0 3/15

MeterDescription

1. ClampJaws

2. MeasuredConductor

3. NCVNon‐ContactVoltageDetectorlamp

4. FunctionSelectSwitch

5. MODEButton

6. LCDDisplay

7. COMInputTestLeadTerminal

8. PositiveInputTestLeadTerminal

9. REL(Relative)buttononMA61;ZERObuttononMA63

10. DisplayHold/backlightbutton

11. Jawtriggeropen/closecontrol



Fig‐1MeterParts

23 4 5 6

910

ControlButtonsDescription

ButtonDescription

PressandholdtoselectVFC(variablefrequencycontrol,lowpassfilter)

MA63only:ShortpresstoselectDC,ACorFrequency(Hz)

MA63only;PresstoaccesstheZEROmode

MA61only;PresstoaccesstheRelativemode

Shortpresstofreeze/unfreezethedisplayedreading

PressandholdtotogglethebacklightON‐OFF

MA61_MA63-en-GB_V1.0 3/15

Function Switch Description

MODELMA61

1. NCV:Non‐ContactVoltageDetector

2. 60AACMeasurements

3. 600mAACMeasurements

4. 6000mAACMeasurements

5. Resistance,Diode,Continuity,andCapacitanceMeasurements

6. ACorDCVoltageandFrequencyMeasurement

7. POWEROFFselection

8. FunctionSelectorDial

MODELMA63

9. NCV:Non‐ContactVoltageDetector

10. 60AACwithFrequencyorDCMeasurements

11. 600mAACwithFrequencyorDCMeasurements

12. 6000mAACwithFrequencyorDCMeasurements

13. Resistance,Diode,Continuity,andCapacitanceMeasurements

14. ACorDCVoltageandFrequencyMeasurements

15. POWEROFFselection

16. FunctionSelectorDial

Fig‐2FunctionSwitch

15 16

Model MA61 Model MA63

MA61_MA63-en-GB_V1.0 3/15

Display Icon Descriptions

LowBattery

TrmsTrueRMSmeasurement

DCDirectcurrent

ACAlternatingcurrent

AUTOAutomaticrange

‐ Minussign;negativereading

)))AudibleContinuitymode

Diodetest

HDisplayhold

AutoPowerOFF(APO)icon(switchesoffwhenAPOisdisabled)

ZERO/RELZero(MA63)andRelative(MA61)functions

VFCVariableFrequencyControl(lowpassfilter)forACVoltage/Current

EFNCV(Non‐ContactVoltage)Detector(EF:ElectromotiveForce)

mA,AAmpere:Unitofcurrent

mV,VVolt:Unitofvoltage

Ω,kΩ,MΩOhm:Unitofresistance

F,µF,nF Farad:Unitofcapacitance

O.LOver‐rangemeasurement

Measurementunitprefixes

m(milli‐)10‐3

µ(micro‐)10‐6

n(nano‐)10‐9

k(kilo‐)103

M(mega‐)106



MA61_MA63-en-GB_V1.0 3/15

Operation

MeterPower

Caution:Donotusethemeterwithbatterycompartmentopenorunsecured.

Theclampmeterispoweredbytwo(2)AAAbatteries.Thebatterycompartmentislocatedonthe

backofthemeter.ThebatterycompartmentissecuredbyonePhillipsheadscrew.Refertothe

BatteryReplacementsectionlaterinthisguideformoreinformation.

AutomaticPowerOFF(APO)

Themeterautomaticallyswitchesoffafter15minutesofinactivity.Beforeswitchingoff,themeter

beepsseveraltimestoalerttheuser.TodisableAPO,holddowntheMODEbuttonwhilepowering

upthemeter.Themeterwillbeepfive(5)timesindicatingthatAPOisdisabled;releasethebutton.

NotethattheAPOiconisnotvisibleonthedisplaywhenAPOisdisabled.APOisre‐enabledon

thenextcyclingofmeterpower.

CurrentMeasurements‐ClampingTechnique

Clamparoundonlyoneconductor.RefertoFig‐3below.Thediagramatleftiscorrectandthe

diagramatrightisincorrect.



Fig‐3CorrectandIncorrectClampingTechniques

MA61_MA63-en-GB_V1.0 3/15

ACCurrentMeasurements

WARNING:Toavoidelectricshock,disconnectthetestleadsfromthemeterbeforemaking

currentmeasurements.

CAUTION:ObserveCATII600V,CATIII300VwithrespecttoEarthGroundfortheJaw.

1. SettheFunctionswitchtothe600mA,6000mA,or60Arange.

2. FortheMA63,shortpresstheMODEbuttontoSelectAC,Frequency(orDC)

3. PresstheTriggertoopentheclampjaw.

4. Clampontoasingleconductor(fullyenclosingit).Donotallowagapbetweenthetwohalves

ofthejaw.RefertoFig‐3earlierintheOperationsection.

5. Whenmeasuringvariablefrequencydevices,pressandholdtheVFCbuttontostart/stop

measuringwiththelowpassfilter.

6. ReadtheACAvalueontheLCD.

DCCurrentMeasurements(MA63only)

WARNING:Toavoidelectricshock,disconnectthetestleadsfromthemeterbeforemaking

currentmeasurements.

CAUTION:ObserveCATII600V,CATIII300VwithrespecttoEarthGroundfortheJaw.

1. SettheFunctionswitchtothe600mA,

6000mA,or60Arange.

2. UsetheMODEbuttontoselectDC.

3. PresstheZERObuttonseveraltimestonull

themeterdisplaywithoutaconductorin

theclampjaw.Zerothemeterwiththe

clampheldinthesameorientationasthe

actualmeasurement(seeFig‐4).

4. PresstheTriggertoopenthecurrentsense

Jaw.

7. Fullyencloseasingleconductor.Donot

allowagapbetweenthetwohalvesofthe

jaw.RefertoFig‐3earlierinthisguide.

5. ReadtheDCAvalueontheLCD.



Fig‐4CorrectandIncorrectZERO

techniques

ZERO

MA61_MA63-en-GB_V1.0 3/15

FrequencyMeasurements

WARNING:Toavoidelectricshock,disconnectthetestleadsfromthemeterbeforemaking

currentmeasurements.

CAUTION:ObserveCATII600V,CATIII300VwithrespecttoEarthGroundfortheJaw.

1. SettheFunctionswitchtotheHzposition.

2. PresstheTriggertoopenthejawandfullyencloseoneconductor.RefertotheFig‐3inthe

CurrentClamptechniquesectionabove.

3. ReadtheFrequencymeasurementontheLCDinHz.

VoltageMeasurements

WARNING:Donotapply>600VAC/DCbetweenthemeter’sterminalsandearthground

CAUTION:Whenconnectingthetestleadstothecircuitordeviceundertest,connectthe

blackleadbeforethered;whenremovingthetestleads,removetheredbeforetheblacklead.

ACVoltageMeasurements

1. Inserttheblacktestleadbananaplugintothenegative

(COM)jackandtheredtestleadbananaplugintothe

positive(V/Ω)jack.

2. TurnthefunctionswitchtotheVposition.

3. UsetheMODEbuttontoselectACifnecessary.Usethe

MODEbuttontoalsoselectthefrequencyofthemeasured

voltage.

4. Touchthetestprobetipstothecircuitundertest.

5. Readthevalueinthedisplay.Thedisplaywillindicatethe

properdecimalpoint.



Fig‐5ACVOLTAGEMEASUREMENT

MA61_MA63-en-GB_V1.0 3/15

DCVoltageMeasurements

1. Inserttheblacktestleadbananaplugintothenegative(COM)jackandtheredtestlead

bananaplugintothepositive(V/Ω)jack.

2. MovetheFunctionSwitchtotheVposition.

3. PresstheMODEbuttontoselectDCifnecessary.

4. Touchthetestprobetipstothecircuitundertest.Besureto

observethecorrectpolarity(redleadtopositive,blackleadto

negative).

5. Readthevoltageinthedisplay.Thedisplaywillindicatethe

properdecimalpointandvalue.Ifthepolarityisreversed,the

displaywillshow(‐)minusbeforethevalue.

6. ThemeteriscapableofdetectingDCvoltagesto600V.

7. Whenvoltageismeasured,theNCVvoltagedetectLEDwillbe

lit.



Fig‐6DCVOLTAGEMEASUREMENT



ResistanceMeasurements

Cautions:SwitchOFFpowertothedeviceundertestbeforemeasuring.Donottestoncircuits

ordeviceswhere60VDCor30VACispresent.

1. Inserttheblacktestleadbananaplugintothenegative

(COM)jack.Inserttheredtestleadbananaplugintothe

positive(V/Ω)jack.

2. TurntheFunctionSwitchtotheΩposition.

3. UsetheMODEbuttontoselecttheΩicononthedisplay

indicatingresistanceonly(withouttheaudiblecontinuity

iconshowing).

4. Touchthetestprobetipsacrossthecircuitorpartunder

test.Itisbesttodisconnectonesideofthepartundertest

sotherestofthecircuitwillnotinterferewiththe

resistancereading.

5. Readtheresistanceinthedisplay.Thedisplaywillindicate

theproperdecimalpointandvalue.



Fig‐7RESISTANCEMEASUREMENT

This manual suits for next models

Table of contents

Other Extech Instruments Measuring Instrument manuals

Extech Instruments

Extech Instruments Extech 380976 User manual

Extech Instruments

Extech Instruments 480846 User manual

Extech Instruments

Extech Instruments SL130 User manual

Extech Instruments

Extech Instruments SDL470-NISTL User manual

Extech Instruments

Extech Instruments 380460 User manual

Extech Instruments

Extech Instruments LT300 User manual

Extech Instruments

Extech Instruments TachIR RPM10 User manual

Extech Instruments

Extech Instruments 38394 User manual

Extech Instruments

Extech Instruments 475055 User manual

Extech Instruments

Extech Instruments MZ13604 User manual

Extech Instruments

Extech Instruments AN310-NIST User manual

Extech Instruments

Extech Instruments MA160 User manual

Extech Instruments

Extech Instruments TKG100 User manual

Extech Instruments

Extech Instruments UM200 User manual

Extech Instruments

Extech Instruments 407777 User manual

Extech Instruments

Extech Instruments RH355 User manual

Extech Instruments

Extech Instruments SL250W User manual

Extech Instruments

Extech Instruments PH100 User manual

Extech Instruments

Extech Instruments CO250 User manual

Extech Instruments

Extech Instruments 407119 User manual

Extech Instruments

Extech Instruments CG104 User manual

Extech Instruments

Extech Instruments 451104 User manual

Extech Instruments

Extech Instruments 475040 User manual

Extech Instruments

Extech Instruments CO230 User manual

Popular Measuring Instrument manuals by other brands

Suaoki

Suaoki D40 user manual

Elster

Elster BK-G1.6 operating instructions

Endress+Hauser

Endress+Hauser Deltabar FMD71 technical information

Duratool

Duratool D03128 manual

Vega

Vega VEGAPULS 65 Quick setup guide

Tonghui

Tonghui TH2618B Operation manual

Tenmars

Tenmars TM-801 user manual

MSR

MSR 145 user manual

TPS

TPS WP-82 manual

ELMETRON

ELMETRON CP-511 user manual

PCB Piezotronics

PCB Piezotronics 003C30 Installation and operating manual

Tenma

Tenma 72-10465 manual

Endress+Hauser

Endress+Hauser Proline Promag 50 Brief operating instructions

Siemens

Siemens SITRANS F Coriolis FCT030 Function manual

KLINGER

KLINGER CMF V Series instruction manual

EXFO

EXFO FTB-2 Notice

Keysight

Keysight M8290A Getting started guide

ADTEK

ADTEK MW-5 operating manual