EXTECH MA620 [11/17] Capacitance measurements

MA61_MA63-en-GB_V1.0 3/15

ContinuityMeasurements

1. InserttheblacktestleadintothenegativeCOMterminalandtheredtestleadintothe

positiveterminal.

2. Setthefunctionswitchtothe)))position.

3. UsetheMODEbuttontoselecttheContinuitymode.LookfortheContiniutyicon)))onthe

display

.

4. Touchthetestprobetipsacrossthecircuitorcomponentundertest.RefertoFig‐7inthe

Resistancemeasurementsection.

5. Iftheresistanceis<10Ω,thebeeperwillsound.



CapacitanceMeasurements

WARNING:Toavoidelectricshock,removepowertothecircuitundertestanddischargethe

capacitorundertestbeforemeasuring.Donottestoncircuitsordeviceswhere60VDCor

30VACispresent.

1. Setthefunctionswitchtothe capacitanceposition.

2. InserttheblacktestleadbananaplugintothenegativeCOM

jack

andtheredtestleadbananaplugintothepositive

jack.

3. PressMODEtoselecttheunitofmeasuresymbolF.

4. Touchthetestprobetipsacrossthepartundertest.

5. UsetheRELbutton(MA61)ortheZERObutton (MA63)

especiallyforlowcapacitancemeasurements<1µFfor

Relativemeasurements.

6. Readthecapacitancevaluein

thedisplay.

7. Thedisplaywillindicatetheproperdecimalpointandvalue.

Note:Forlargevaluesofcapacitanceseveralminutesmaybe

requiredbeforethefinalreadingstabilizes.

Fig‐8CAPACITANCEMEASUREMENT

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