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Extech Instruments MG310 User Manual

Extech Instruments MG310
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USER MANUAL
InsulationResistanceTester
WithContinuityandACVoltagemodes
ModelMG310
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Extech Instruments MG310 Specifications

General IconGeneral
TypeInsulation Tester
AC/DC Voltage600V
ContinuityYes
BacklightYes
Data HoldYes
Min/MaxYes
Auto Power OffYes
Overrange IndicationYes
Battery6 x AA batteries
Test Voltage250V/500V/1000V
Temperature Resolution0.1°C
DisplayLCD

Summary

Safety Precautions

Danger

Alerts to conditions causing serious or fatal injury, e.g., >750V AC, flammable areas.

Warning

Alerts to potential electric shock, e.g., >33V AC/DC, faulty operation, wet conditions.

Insulation Resistance Measurements

Measurement Precautions

Disconnect power, avoid shorting leads, allow stabilization, handle charged components carefully.

Specialized Insulation Tests

Polarization Index (PI) Testing

Procedure for performing PI test, including test times and result interpretation.

Dielectric Absorption Ratio (DAR) Testing

Procedure for performing DAR test, including test times and result interpretation.

Testing and Calibration

Low Resistance Continuity Testing

Procedure for measuring continuity, including connection and audible signal.

AC Voltage Measurements

Maintenance and Battery

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