Description
The MIT420/2 is an advanced industrial insulation resistance and continuity tester engineered for electrical maintenance, diagnostic testing, and system commissioning. Designed with Original Engineering standards from Megger, the instrument features a dual digital readout combined with an analog arc display, providing real-time trend feedback and high-accuracy numerical readouts. The unit executes standard insulation resistance tests, automated Polarization Index (PI), and Dielectric Absorption Ratio (DAR) testing to evaluate the integrity of insulation systems across commercial, industrial, and utility infrastructure.
Technical Specifications:
Manufacturer: Megger
Model: MIT420/2
Test Voltage Output: 50 V, 100 V, 250 V, 500 V, 1000 V
Insulation Resistance Range: 0.01 MΩ to 200 GΩ
Insulation Test Voltage Accuracy: -0% +20% ±1 V
Continuity Testing Range: 0.01 Ω to 1.0 MΩ (Auto-ranging)
Continuity Test Current: 200 mA and 20 mA selectable
Voltage Measurement Range: 0 to 600 V AC/DC (True RMS)
Diagnostic Functions: Polarization Index (PI), Dielectric Absorption Ratio (DAR), Variable Leakage Current Display
Safety Category Rating: CAT IV 600 V / CAT III 1000 V (IEC 61010-1)
Ingress Protection: IP54 (Weatherproof and dust-resistant)
Operating Temperature: -10 °C to +55 °C
Storage Temperature: -20 °C to +70 °C
Operating Humidity: 90% RH at 40 °C max
Power Source: 6 x 1.5 V AA Alkaline or NiMH rechargeable cells
Dimensions: 228 mm x 108 mm x 63 mm
Weight: 0.59 kg
Industrial Application and Technical Compatibility:
The MIT420/2 delivers targeted diagnostic capability for industrial field maintenance, plant machinery troubleshooting, and predictive maintenance protocols. It resolves insulation degradation issues in 3-phase induction motors, low-to-medium voltage switchgear assemblies, electrical busbars, and distribution transformers. Its Technical Compatibility covers standard plant wiring, power cables, and control circuits operating within CAT IV 600 V environments. The inclusion of PI and DAR metrics enables engineers to detect moisture ingress and thermal aging in motor winding insulation before catastrophic dielectric breakdown occurs.
Procurement and Lifecycle Support:
Standard Lead Time: Stock to 2 weeks subject to batch volume and calibration certification requirements.
Supplied with test leads, prober set, heavy-duty carry case, calibration certificate, and manufacturer technical documentation.
Key Attributes
Accuracy Class: ±0.5%
Measuring Range: 0.01 Ω to 999 kΩ
Testing Voltage: 50 V, 100 V, 250 V, 500 V, 1000 V
Place of Origin: U.K.
Model Number: MIT410/2
Brand Name: Meggers
Dimensions: 228 mm x 108 mm x 63 mm
Display Type: Digital Only
Operating Temperature: -10 to +55° C
Insulation test voltage: 50 V, 100 V, 250 V, 500 V, 1000 V
Resolution: 0.1 kΩ
Continuity measurement: 0.01 Ω to 999 kΩ (0 to 1000 kΩ on analog scale)
Frequency measurement range: 15 Hz - 400 Hz
Frequency measurement: ±0.5% ± 1digit (100 Hz to 400 Hz)
Storage capacity: >1000 test results
Dimensions: 228 mm x 108 mm x 63 mm
Weight: 600g
Packaging and Delivery
Selling Units: Single item
Single package size: 37X33X16 cm
Single gross weight: 2.500 kg
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