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The UNI-T UT511 is a digital insulation resistance tester with selectable 100 V, 250 V, 500 V and 1000 V test voltages. It supports insulation resistance, PI, DAR, low-resistance and AC/DC voltage measurement for maintaining motors, cables, transformers and other electrical equipment.
| Parameter | Range / Specification | Basic Accuracy |
|---|---|---|
| Insulation Test Voltages | 100 V / 250 V / 500 V / 1000 V | 0% to +10% |
| Insulation Resistance at 100 V | 0.1 MΩ to 500 MΩ | ±(3% + 5) |
| Insulation Resistance at 250 V | 0.5 MΩ to 2 GΩ | ±(3% + 5) |
| Insulation Resistance at 500 V | 1 MΩ to 4 GΩ | ±(3% + 5) |
| Insulation Resistance at 1000 V | 2 MΩ to 10 GΩ | ±(3% + 5) |
| DC Voltage | Up to 1000 V | ±(2% + 3) |
| AC Voltage | Up to 750 V | ±(2% + 3) |
| Low Resistance | 0.1 Ω to 999.9 Ω | ±(1% + 3) |
| Short-Circuit Current | <2 mA | |
| Display | 9999 counts with 30-segment analogue bar graph | |
| Ranging Mode | Automatic ranging | |
| Insulation Analysis | Polarisation Index (PI) and Dielectric Absorption Ratio (DAR) | |
| Data Storage | 18 groups | |
| Timed Measurement | Up to approximately 30 minutes | |
| Additional Functions | Comparison testing, continuous measurement, automatic discharge, automatic power-off, backlight, low-battery indication, over-range warning and high-voltage indication | |
| Safety Rating | CAT III 600 V / CAT II 1000 V | |
| Certifications | CE, UKCA | |
| Power Supply | 8 × 1.5 V LR14 batteries | |
| Optional Power Supply | Compatible power adaptor | |
| LCD Dimensions | 123 × 58 mm | |
| Product Dimensions | 202 × 155 × 94 mm | |
| Product Weight | Approximately 1.2 kg | |
