User Manual
MA61_MA63-en-GB_V1.0 3/15 
2
Introduction
ThankyouforselectingtheExtechInstrumentsTrueRMSMiniClampMeter.TheMA61
measuresACCurrentwhiletheMA63measuresACandDCCurrent.Bothmetersalsomeasure
AC/DCVoltage,Frequency,Resistance,Capacitance,Diode,andContinuity.
TheMiniClampMetersmeasurecurrentinthreeACranges600mA,6000mA,and
60A.The
MA63onlymeasuresDCcurrentintworanges6000mADCand60ADC.
TheclampmetersofferadvancedfeaturesthatincludesNCV(non‐contactvoltage)detection
andVFC(variablefrequencycontrol)thatinsertsalowpassfilterinthe measurementcircuit.
Thisdeviceisshippedfullytestedandcalibratedand,withproperuse,willprovideyearsof
reliableservice.Pleasevisitourwebsite(www.extech.com)tocheckforthelatestversionof this
UserGuide,ProductUpdates,ProductRegistration,andCustomerSupport.
Features
•  TrueRMSforaccuratereadingsofnoisy,distorted,ornon‐sinusoidalwaveforms
•  ModelMA61forACCurrent,AC/DCVoltageMeasurements,andRelativefunction
  ModelMA63forAC/DCCurrent/VoltageMeasurements,andZerofunction
  Frequency,Resistance,andCapacitanceMeasurements
•  Compact0.7"(17mm)jawsizeaccommodatesconductorsupto
300MCM
•  VariableFrequencyControl(VFC):Lowpassfilterforaccuratemeasurementofvariable
frequencydrivesignalsbyfilteringhigh‐frequencyinterference.
•  Built‐inNon‐ContactVoltage(NCV)detector
•  Fullrangeoverloadprotection
•  6000countbacklitLCDdisplay
•  DataHoldfreezesreadingondisplay
•  Low
batteryindicatorandAutoPowerOfffeaturewithdisable
•  CATII‐600VCATIII‐300Vsafetyrating
•  Completewithtestleads,carryingcase,andtwoAAAbatteries










