The UNI-T UT505B Handheld Insulation Resistance Tester represents the pinnacle of portable electrical testing technology, providing professionals with an unprecedented combination of precision, intelligence, and diagnostic depth. Engineered to meet the most demanding electrical testing requirements, the UT505B transforms complex measurement challenges into clear, actionable insights.
| Parameter | Specification |
|---|---|
| Insulation Resistance Range | 50V: 0.1MΩ~50MΩ (±3%+3), 50MΩ~1GΩ (±10%+3) 100V: 0.1MΩ~100MΩ (±3%+3), 100MΩ~1GΩ (±10%+3) 250V: 0.1MΩ~200MΩ (±1.5%+5), 200MΩ~1GΩ (±1.5%+5) 500V: 0.1MΩ~500MΩ (±1.5%+5), 500MΩ~1GΩ (±1.5%+5) 1000V: 0.1MΩ~2000MΩ (±1.5%+5), 2GΩ~9.9GΩ (±5%+3), 10GΩ~20GΩ (±7%+3) |
| Voltage Range | 3.0V to 700V |
| Current Range | 0.5mA to 24A |
| Power Range | 1W to 12kW |
| Display | 6000-count LCD |
| Power Source | 6 × 1.5V batteries (LR6) |
| Dimensions | 103mm × 225mm × 59mm |
| Weight | 630g |
| Feature | UT505A | UT505B |
|---|---|---|
| Insulation Resistance Accuracy | 0%~10% variation | 0%~20% variation |
| Auto Fuse Check | No | Yes |
| High Voltage Output Alarm | No | Yes |
| Data Storage | Standard | 99-group data storage |
| Recommended Applications | Standard electrical testing and maintenance | Advanced diagnostics and critical infrastructure testing |
Manufacturing and industrial maintenance professionals leverage the UT505B to:
Utility and infrastructure managers rely on the UT505B for:
Research facilities and advanced engineering teams utilize the UT505B to:
Renewable energy technicians depend on the UT505B for:
The Dielectric Absorption Ratio (DAR) is a crucial diagnostic method for assessing insulation condition. By measuring the ratio of insulation resistance at two specific time intervals (typically 30 and 60 seconds), it provides rapid insights into insulation health.
The Polarization Index (PI) offers a more comprehensive evaluation of insulation condition by comparing insulation resistance at 10 minutes to the resistance at 1 minute after applying a test voltage.
The UT505B is more than just a measurement tool—it's a comprehensive diagnostic system that:
"The UT505B has revolutionized our approach to electrical maintenance. Its advanced features and precision have helped us prevent potential system failures before they occur."
- Carlos M., Industrial Reliability Engineer"As a renewable energy specialist, I've found the UT505B to be an indispensable tool for comprehensive system diagnostics and performance verification."
- Sarah L., Wind Energy Systems ManagerUNI-T provides a comprehensive 1-year warranty on the UT505B, covering manufacturing defects and component failures under normal use conditions. Our dedicated technical support team offers expert guidance to help you maximize the value of your investment and ensure reliable electrical testing capabilities.
