Extech Instruments EX655 User Manual

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1. Introduction
ThankyouforselectingtheExtechEX650SeriesClampMeter.
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TheEX650isafeature‐packedTrueRMSdigitalClampmeterserieswith6000countbacklit
displayandautomaticranging.
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MeasureAC/DCvoltage,ACcurrent,DCcurrent(EX655),Inrushcurrent(EX655),Resistance,
Diode,Continuity,Capacitance,Temperature(EX655),Lo‘Z’lowimpedancemode,and
Frequency(EX655).
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OtherfunctionsincludeDataHold,Maximum/MinimumMemory,Relativemode,LowPassFilter
(LPF)forVariableFrequencyDrivesignals(EX655),Worklight,NCV(Non‐ContactVolt
Detection),andAutopower‐off.
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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.
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Features
 6000countdigitaldisplay
 60segmentanalogbargraphdisplayonEX655model
 LargebacklitLEDdisplay
 TrueRMSACmeasurements
 LoZmodeeliminatesghostvoltagereadingsonnon‐energizedcircuits
 AutoandManualRangemodes
 0.5%DCVaccuracy
 DataHold

InrushcurrentmodeonEX655model
 Relativemode
 AutoPowerOFF(APO)withdisablefunction
 Temperaturemeasurements(ModelEX655only)withincludedtemperatureprobe
 600AACcurrentmeasurements
 600ADCCurrentMeasurementsonEX655model
 Non‐ContactVoltageDetector
 Visualandaudiblecontinuity
measurementalert
 Lowbatteryindicator
 Includestestleads,Type‐Ktemperatureprobe(EX655),andthree(3)1.5VAAAbatteries.
 CATIII600V/CATII1000V
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Extech Instruments EX655 Specifications

General

Brand	Extech Instruments
Model	EX655
Category	Measuring Instruments
Language	English