The UNI-T UT513B Insulation Resistance Tester is a high-voltage professional testing instrument designed for advanced insulation diagnostics in industrial and power system applications. With selectable test voltages up to 5000V and an ultra-wide insulation resistance measurement range up to 1000GΩ, this device is ideal for testing transformers, high-voltage cables, switchgear, generators, and large motors.
The UT513B supports DAR (Dielectric Absorption Ratio) and PI (Polarization Index) measurements, enabling in-depth analysis of insulation health and long-term reliability. Its large digital backlit display ensures clear readings even in low-light environments. The tester also features data logging capability, USB communication for data transfer, auto discharge function for safety, and strong interference rejection performance. Built for demanding industrial environments, it meets CAT IV 600V safety standards and delivers dependable performance for maintenance professionals and electrical engineers.
Features
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High voltage insulation testing up to 5000V
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Wide measurement range up to 1000GΩ
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DAR and PI diagnostic testing functions
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Data logging and USB communication
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Large backlit digital display
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Auto discharge after testing for safety
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Strong anti-interference capability
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AC and DC voltage measurement
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Designed for transformers, motors, cables, and switchgear
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CAT IV 600V safety rating
Specifications
| Specification |
Details |
| Insulation Test Voltages |
500V / 1000V / 2500V / 5000V DC |
| Insulation Resistance Range |
Up to 1000GΩ |
| Short Circuit Current |
Approx. 1mA |
| AC Voltage Measurement |
Up to 600V |
| DC Voltage Measurement |
Up to 600V |
| DAR Measurement |
Yes |
| PI Measurement |
Yes |
| Display |
Large backlit LCD |
| Data Logging |
Yes |
| Communication |
USB interface |
| Safety Category |
CAT IV 600V |
| Power Supply |
Rechargeable battery pack |
| Operating Temperature |
0°C – 40°C |
| Weight |
Approx. 2 kg |
