High-Accuracy 5kV Insulation Tester with 10 TΩ Range, PI/DAR, and Data Logging
Product Overview:
The Metrel MI 3205 TeraOhmXA is a laboratory-grade 5kV insulation resistance tester designed for high-end industrial, utility, and research applications. It offers insulation resistance measurement up to 10 TΩ, supports selectable test voltages from 50 V to 5000 V, and features a powerful suite of diagnostic functions such as PI (Polarization Index) and DAR (Dielectric Absorption Ratio).
This advanced instrument is ideal for testing high-voltage motors, generators, transformers, cables, and switchgear. With real-time graphical display, built-in memory, and USB/RS232 PC connectivity, the MI 3205 delivers both portability and deep analytical capabilities.
Key Features:
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Adjustable Test Voltages: 50 V to 5000 V in 10 V/25 V steps
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Insulation Resistance Range: Up to 10 TΩ (10,000 GΩ)
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PI and DAR Testing – For insulation aging and quality monitoring
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Graphical LCD with Trend Display
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Built-in Memory and USB/RS232 Communication Ports
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Ramp, Step Voltage, and Timer Modes
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Automatic Discharge of Capacitive Loads
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Protective Carrying Case for Rugged Field Use
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EN 61010-1, CAT IV 600 V Rated
Best For:
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Electrical utility substations and grid infrastructure
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Transformer and high-voltage equipment manufacturers
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Condition monitoring and predictive maintenance programs
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Power plants and industrial quality control labs
What’s Included:
🔍 How It Compares:
| Feature |
Metrel MI 3205 |
Metrel MI 3201 |
Fluke 1555 |
| Max Test Voltage |
5000 V |
5000 V |
10,000 V |
| Max Resistance Range |
10 TΩ |
10 TΩ |
2 TΩ |
| PI/DAR Capability |
✅ Yes |
✅ Yes |
✅ Yes |
| Graphical Display |
✅ Yes (real-time) |
✅ Yes |
✅ Yes |
| Data Export |
✅ USB + RS232 |
✅ USB |
✅ USB |
| Best Use |
Lab + field diagnostics |
Industrial diagnostics |
HV field testing |
