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 ExStik RE300 User manual

Extech Instruments

Extech Instruments DT500 User manual

Extech Instruments

Extech Instruments Extech 380976 User manual

Extech Instruments

Extech Instruments DT40M User manual

Extech Instruments

Extech Instruments DT200 User manual

Extech Instruments

Extech Instruments LT40 User manual

Extech Instruments

Extech Instruments TB400 User manual

Extech Instruments

Extech Instruments ExStik RE300 User manual

Extech Instruments

Extech Instruments EX622 User manual

Extech Instruments

Extech Instruments 380973 User manual

Extech Instruments

Extech Instruments MO210 User manual

Extech Instruments

Extech Instruments 407740 User manual

Extech Instruments

Extech Instruments MO260 User manual

Extech Instruments

Extech Instruments PQ3450 User manual

Extech Instruments

Extech Instruments 341350A User manual

Extech Instruments

Extech Instruments HD450 User manual

Extech Instruments

Extech Instruments ExStik PH100 User manual

Extech Instruments

Extech Instruments CO230 User manual

Extech Instruments

Extech Instruments 461923 User manual

Extech Instruments

Extech Instruments 407355 User manual

Extech Instruments

Extech Instruments 407123 User manual

Extech Instruments

Extech Instruments UV505 User manual

Extech Instruments

Extech Instruments AM600 User manual

Extech Instruments

Extech Instruments 380652 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