Extech Instruments MA430T Manual

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MA430T-EU-EN V1.1 3/13

AC/DCVoltageMeasurements

CAUTION:DonotmeasurevoltagesifamotoronthecircuitisbeingswitchedONorOFF.

Largevoltagesurgesmayoccurthatcandamagethemeter.

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1. RotatethefunctionswitchtotheVACortheVDCposition.

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

InserttheredtestleadbananaplugintothepositiveVjack.

3. Touchtheblacktestprobetiptothenegativesideofthe

circuit.

Touchtheredtestprobetiptothepositivesideofthecircuit.

4. Readthevoltagevalueinthedisplay.

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Resistance,Diode,ContinuityMeasurements

Note:Removepowerfromthedeviceundertestbeforemakingresistancemeasurements

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

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

InserttheredtestleadbananaplugintothepositiveΩjack.

3. Touchtheblacktestprobetiptoonesideofthedevice.

Touchtheredtestprobetiptotheothersideofthedevice.

4. Readtheresistancevalueinthedisplay.

5. PresstheMODEbuttontoselecttheDIODEmode.TheDiodesymbolwill

appearinthedisplay.

6. PresstheMODEbuttontoselecttheContinuitymode.Thecontinuity

symbolwillappearinthedisplay.Iftheresistanceis<150ohmsthetone

willsound.

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