Extech Instruments MA430T Manual

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MA430T-EU-EN V1.1 3/13

Operation

NOTES:ReadandunderstandallWarningandCautionstatementsinthisoperationmanual

priortousingthismeter.SetthefunctionselectswitchtotheOFFpositionwhenthemeteris

notinuse.



Non‐ContactVoltageDetector

WARNING:RiskofElectrocution.Beforeuse,alwaystesttheVoltageDetectoronaknownlive

circuittoverifyproperoperation.

1. RotatetheFunctionswitchtoanyposition.

2. Placethedetectorprobetipontheconductortobetested.

3. IfACvoltageispresent,theNCVdetectorlightwillturnonwitha

steadyredlight.

NOTE:Theconductorsinelectricalcordsetsareoftentwisted.Forbest

results,movetheprobetipalongalengthofthecordtoassure

placingthetipincloseproximitytotheliveconductor.

NOTE:Thedetectorisdesignedwithhighsensitivity.Staticelectricityorothersourcesofenergy

mayrandomlytripthesensor.Thisisnormaloperation.



ACCurrentMeasurements



WARNING:Disconnectthetestleadsbeforemakingclampmeasurements.



1. RotatetheFunctionswitchtothe400Aposition

2. Pressthetriggertoopenjaw.Fullyencloseonlyone

conductor.

3. Readthecurrentvalueinthedisplay.

4. Ifthevalueislessthan200A,rotatethefunctionswitchto

alowerrangetoimproveresolution.

