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4 MG310-en-GB_V1.0 12/15

MeterDescription

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1. EARTHterminalforInsulationResistanceandContinuitytesting.

2. GUARDterminalforACVandContinuitytesting.

3. VterminalforACVtestingandSelf‐Testmode.

4. LINETerminalforInsulationResistancetestingandSelf‐Testmode.

5. BacklitLCDDisplay

6. ZERObutton(shortpress)andLCDBacklight

ON/OFFbutton(longpress)

7. PI/DARTestingselectionbutton

8. TESTbutton

9. Rotaryfunctionselectswitch

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Note:Securebatterycompartmentlocatedonrearofunit.

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ControlButtons

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1. PI/DARbutton:PresstoselectPIpolarizationindexandDARdielectricabsorptionratiotest

modes.

2. ZERO/Backlightbutton:Longpresstoenable/disableLCDbacklightorshortpresstoresetthe

displaytozeroforlowresistancemeasurements.

3. TESTbutton:Engage/disengagetestingforIR,Continuity,andACVoltagetests.

4. Rotaryfunctionswitch:SelectanIRoutputtestvoltage(250V/500V/1000V),measurelow

resistance(Continuity),ormeasureACVoltage(ACV).

Extech Instruments MG310 User Manual

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