Product Manual

MA260‐en‐GB_V1.15/15
6
VoltageMeasurements
WARNING:Donotapply>1000VAC/DCbetweenthemeter’sterminalsandearthground
CAUTION:Whenconnectingthetestleadstothecircuitordeviceundertest,connectthe
blackleadbeforethered;whenremovingthetestleads,removetheredbeforetheblacklead.
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
ACVoltageMeasurements
WARNINGS:
 Thetimedelaythatresultsfromthemeter’sautomaticsensingcircuit(1to2seconds)maycauseGFCI
circuitstoresetandbreakerstotrip.
 ItisnotrecommendedtousecalibrationequipmenttotesttheMA260.Calibratorscanbedamagedif
usedtotesttheMA260.
1. Inserttheblacktestleadbananaplugintothenegative(COM)
jackandtheredtestleadbananaplugintothepositive(V/Ω)
jack.
2. Touchthetestprobetipstothecircuitundertest.
3. NotethatbecauseoftheAuto‐Sensefunctionthemeterstarts
inthe
continuity(resistance)modeand,afterseveralseconds,
enterstheVoltagemode.Thistimedelaymayprecludethe
meter’suseonsomeapplications,pleaseusecaution.
4. Readthe voltageinthedisplay.Thedisplaywillindicatethe
properdecimalpointandvalue.
5. NotethatthevoltagedetectLEDmay
lightwhenACVvoltageis
measured.Themeteriscapableofmeasuringvoltagefrom
1.3VACto1000VAC.Signalsbelow1VACwilltriggerthemeter’s
alertbeeper.
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InputImpedance
Theinputimpedanceisgreaterthanorequalto6Kohmsforinputvoltagesupto30V.
Theinputimpedanceincreaseswithinputvoltagetoapproximately420Kohmsat1000VAC.
ForACVoltage,theAuto‐sensefeatureevaluatesinputsignalsandadjuststheInput
Impedancetoeliminateeffectsofghostvoltages.