Extech Instruments MG310

4 MG310-en-GB_V1.0 12/15
MeterDescription
123
4
5
678
9
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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).