Megger MIT1015 MIT Series Insulation Resistance Testers

Megger MIT1015 is a 10 kV insulation resistance tester belonging to Megger's Essential product line within the MIT series. Designed for go/no-go testing applications, this instrument is ideal for technicians and engineers working in demanding field environments who require reliable high-voltage insulation testing without the need for onboard data storage or remote control capabilities .

The MIT1015 is part of Megger’s globally renowned family of 5 kV, 10 kV, and 15 kV insulation testers, known for rugged dependability, long service life, and accurate measurements . Common features across the range include a no-compromise approach to safety and an intuitive colour custom display with an unbeatable viewing angle, even in extreme environments .

Key Features

Feature Description

Maximum Test Voltage 10 kV

Maximum Resistance Measurement 20 TΩ

RE>Act™ Mode Enhanced accuracy and safety by monitoring reabsorption current

PI Predictor™ (PIp) Predicts Polarization Index in 3-5 minutes, reducing test time by up to 50%

Noise Rejection Up to 3 mA interference rejection

Safety Rating CAT IV 600 V to 3000 m altitude

Dual Power Supply Rapid-charge Li-ion battery or AC mains operation

Dual-Case Design Unique fire-retardant inner shell with rugged outer protection

IP Rating IP65 (lid closed), IP40 (lid open)

Operating Temperature -20°C to +50°C

Technical Specifications

Insulation Testing

Parameter Specification

Fixed Test Voltages 500 V, 1000 V, 2500 V, 5000 V, 10000 V

User-Defined Voltage 40 V to 1000 V in 10 V steps

Resistance Range 10 kΩ to 20 TΩ @ 10 kV

Resistance Accuracy ±5% up to 2 TΩ @ 10 kV; ±20% up to 20 TΩ @ 10 kV

Test Modes IR, IR(t), DAR, PI

Short Circuit / Charge Current 3 mA (default maximum)

Current Measurement Range 0.01 nA to 6 mA

Current Accuracy ±5% ±0.2 nA at all voltages

Capacitance Measurement

Parameter Specification

Capacitance Range 10 nF to 25 μF

Capacitance Accuracy ±10% ±5 nF

Capacitor Charge Time <5 s/μF at 3 mA to 10 kV

Capacitor Discharge Time <250 ms/μF to discharge from 10 kV to 50 V

Voltage Measurement

Parameter Specification

Voltmeter Range 30 V to 660 V AC or DC

Voltmeter Frequency 45 Hz to 65 Hz

Voltmeter Accuracy ±3%, ±3 V

AC Power Supply 90 to 264 V rms, 47 to 63 Hz, 100 VA

General Specifications

Parameter Specification

Battery Type 11.1 V, 5.2 Ah Li-ion (IEC 62133:2003 certified)

Battery Life 4.5 hours continuous testing at 10 kV with 100 MΩ load

Battery Charge Time 2.5 hours (deep discharge), 2 hours (normal)

Timer Range Up to 99 minutes 59 seconds

Guard Terminal Performance Guards out current IG ≥5000× IL at 100 GΩ / 5000 V

Dimensions (L × W × H) 315 × 285 × 181 mm

Weight 4.5 kg (instrument only)

Environmental & Safety

Parameter Specification

Operating Temperature -20°C to +50°C

Humidity 90% RH non-condensing at 40°C

Altitude Up to 3000 m

IP Rating IP65 (lid closed), IP40 (lid open)

Safety Rating CAT IV 600 V to 3000 m

Test Capabilities

The MIT1015 supports the following diagnostic test modes :

Test Mode Description

IR Basic insulation resistance measurement

IR(t) Insulation resistance with time recording

DAR Dielectric Absorption Ratio

PI Polarization Index

PI Predictor™ Predicts 10-minute PI value in 3-5 minutes

RE>Act™ Compensates for reabsorption current to prevent incorrect pass/fail results