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Megger MIT310 is a digital insulation and continuity tester from the renowned MIT300 Series, designed specifically for electrical contractors, maintenance professionals, and testing engineers. This instrument combines insulation testing capabilities with fast continuity testing in a rugged, portable package suitable for both commercial and industrial applications.
The MIT310 features the popular Megger digital/analog display, with large 20mm high characters providing a very clear readout, combined with an analog arc that gives the feel of an analog instrument with true analog response.
Key Features
Feature Description
Insulation Testing Three fixed test voltages: 250V, 500V, and 1000V DC
Maximum Insulation Resistance 999 MΩ
Minimum Insulation Resistance 10 kΩ
Test Current 1 mA
Continuity Testing Fast automatic testing with 200mA output
Display Type LCD with analog arc (digital/analog combination)
Live Circuit Detection Automatic warning >25V AC/DC
Safety Lockout Prevents testing when circuit voltage >50V
Automatic Discharge Capacitance auto-discharge function
IP Rating IP54 – Dust and water resistant
Safety Rating CAT III 600V
Technical Specifications
Insulation Testing
Parameter Specification
Test Voltages (Fixed) 250V, 500V, 1000V DC
Measurement Range 10 kΩ to 999 MΩ
Test Current 1 mA at rated voltage
Accuracy ±5% ±2 digits up to 100 kΩ
Short Circuit Current 2 mA typical
Continuity Testing
Parameter Specification
Test Current 200 mA (-0 mA to +20 mA) for 0.01Ω to 4Ω
Open Circuit Voltage 5V ±1V
Lead Null Up to 10Ω
Buzzer Audible continuity indicator
Voltage Measurement
Parameter Specification
AC/DC Voltage Range 0 to 600V
Live Circuit Warning >25V AC/DC activates warning
Safety Lockout >50V prevents insulation test
General Specifications
Parameter Specification
Display 20mm LCD with analog arc
Power Supply 8 x AA batteries
Battery Life 5000 five-second tests
Dimensions (H x W x D) 203 x 148 x 78 mm
Weight 980g (instrument only)
