Extech Instruments MA430T Manual

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MA430T-EU-EN V1.1 3/13

DataHold

TofreezetheLCDreading,presstheHOLDbutton.TheHOLDiconappearsontheLCD.Pressthe

HOLDbuttonagaintoreturntonormaloperation.

MAX

PresstheMAXbuttontodisplayandholdthemaximumreading.Thedisplaywillupdateifa

higherreadingisdetected.PresstheMAXbuttontoexitthemode.

RANGE(VoltageandResistancefunctions)

Whenthemeterisfirstturnedon,itautomaticallygoesintoAuto‐Ranging.Thisautomatically

selectsthebestrangeforthemeasurementsbeingmadeandisgenerallythebestmodefor

mostmeasurements.Formeasurementsituationsrequiringthatarangebemanuallyselected,

performthefollowing:

1. PresstheRANGEbuttonandthe“AUTO”iconwillturnoff.

2. PresstheRANGEbuttontostepthroughtheavailablerangesuntiltherangeneeded

appears.

3. Press and holdthe RANGE button for2 seconds toexit the Manual‐Rangingmode and

returntoAuto‐Ranging.

MODE

PresstheMODEbuttonintheΩ‐Diode‐Continuitypositiontoselectthefunctiontobeused.

Backlight

Pressandholdthe buttonfor2secondstoturnthebacklighton.Repeatthepresstoturn

thebacklightofforwaitapproximately15secondsforittoturnoffautomatically.

AutomaticPowerOff

Inordertoconservebatterylife,themeterwillautomaticallyturnoffafterapproximately15

minutes.Themeterwill“beep”beforeshuttingdown.Toturnthemeteronagain,changethe

positionofthefunctionswitch.

Lowbatteryindication

Whenthe iconappearsinthedisplay,thebatteryshouldbereplaced.Refertothebattery

replacementprocedureinthemaintenancesection.

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