UNI-T UT512D Insulation Tester Overview
The UNI-T UT512D insulation tester is a professional high-voltage device designed for accurate insulation resistance measurement in industrial and electrical systems. It supports multiple test voltages including 250V, 500V, 1000V, and 2500V, making it suitable for testing cables, transformers, motors, and power equipment.
This insulation tester is widely used in industries such as power distribution, telecommunications, and maintenance services, where reliable insulation testing is essential for safety and performance.
Specifications
| Rated voltage | UT512D | UT512E | Accuracy |
| 250V | <0.25MΩ | <0.25MΩ | reference only |
| 0.25MΩ~4.99GΩ | 0.25MΩ~4.99GΩ | ±(5%+5) | |
| 5.00GΩ~24.9GΩ | 5.00GΩ~49.9GΩ | ±(20%+10) | |
| 25.0GΩ~100GΩ | 50.0GΩ~250GΩ | reference only | |
| 500V | <0.50MΩ | <0.50MΩ | reference only |
| 0.50MΩ~9.99GΩ | 0.50MΩ~9.99GΩ | ±(5%+5) | |
| 10.0GΩ~49.9GΩ | 10.0GΩ~99.9GΩ | ±(20%+10) | |
| 50.0GΩ~200GΩ | 100GΩ~500GΩ | reference only | |
| 1000V | <1.00MΩ | <1.00MΩ | reference only |
| 1.00MΩ~19.9GΩ | 1.00MΩ~19.9GΩ | ±(5%+5) | |
| 20.0GΩ~99.9GΩ | 20.0GΩ~199GΩ | ±(20%+10) | |
| 100GΩ~400GΩ | 200GΩ~1.00TΩ | reference only | |
| 2500V | <2.50MΩ | <2.50MΩ | reference only |
| 2.50MΩ~49.9GΩ | 2.50MΩ~49.9GΩ | ±(5%+5) | |
| 50.0GΩ~249GΩ | 50.0GΩ~499GΩ | ±(20%+10) | |
| 250GΩ~1.00TΩ | 500GΩ~2.50TΩ | reference only | |
| Capacitance test | NA | 0.01uF~2.0uF | ±(15%+3) |
| Low resistor test | NA | 0.1Ω~600Ω | ±(2%+10) |
| Output voltage(Rating) | stepping voltage range | Step by 10% of each range each time, and adjust the voltage range to 50%~120% of each range; Display accuracy:±(10% read+10V) Output accuracy:±(0%~20%) |
|
| 250V | 350V, 275V, 300V | ||
| 500V | 300V, 350V, 400V, 450V, 500V, 550V, 600V | ||
| 1000V | 500V, 600V, 700V, 800V, 900V, 1000V, 1100V, 1200V | ||
| 2500V | 1250V, 1500V, 1750V, 2000V, 2250V, 2500V | ||
| DC voltage | 30~1000VDC | ±(3%+5) | |
| AC voltage | 30~750VAC 50Hz/60Hz |
±(3%+5) | |
| Current | 0.01nA~3.5mA | 0.01nA~5mA | |
| Short-circuit current | about 3.5mA | about 5mA | |
| Features | |||
| PI test | automatic display | √ | |
| DAR test | automatic display | √ | |
| Timing measurement | √ | ||
| Resistance comparison | √ | ||
| Monitoring function | Monitor the voltage of measured object and the discharge state after testing. | √ | |
| Timer testing | Record testing time automatically. Timing range: 0s~99m and 59s |
√ | |
| Storage function | 999 sets | ||
| Data transmission | Upload testing data to computer via USB cable. | √ | |
| Low Battery indication | √ | ||
| Auto power off | √ | ||
| Dimensions | 238 * 166 * 90.5mm | ||
| CAT rating | CAT Ⅳ 600V | ||
| Certificates | CE/UKCA | ||












