The UNI-T UT503PV PV Insulation Tester is specifically designed for photovoltaic system installation, commissioning, and maintenance. Engineered to test insulation resistance in solar panel systems up to 1000V DC, this device ensures safety, compliance, and performance verification in residential, commercial, and industrial solar applications.
With multiple insulation test voltage selections and a measurement range up to 5.1GΩ, the UT503PV delivers accurate and stable readings. It supports DAR (Dielectric Absorption Ratio) and PI (Polarization Index) testing, helping technicians assess insulation quality and long-term reliability. The device features a clear digital display, data hold function, auto power-off, and low battery indication, making it highly practical for fieldwork. Built to meet CAT III 600V safety standards, this tester is an essential tool for solar engineers and electrical maintenance professionals.
Features
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Designed for photovoltaic solar system testing
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Insulation resistance testing up to 1000V DC
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Measurement range up to 5.1GΩ
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DAR and PI measurement functions
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Stable and accurate digital readings
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Large LCD display for clear visibility
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Data hold function
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Auto power-off for energy saving
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Low battery indication
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CAT III 600V safety rating
Specifications
| Specification |
Details |
| Insulation Test Voltages |
250V / 500V / 1000V DC |
| Insulation Resistance Range |
0.1MΩ – 5.1GΩ |
| DC Voltage Measurement |
Up to 1000V |
| AC Voltage Measurement |
Up to 600V |
| DAR Measurement |
Yes |
| PI Measurement |
Yes |
| Display |
Digital LCD |
| Safety Category |
CAT III 600V |
| Power Supply |
6 × 1.5V AA batteries |
| Operating Temperature |
0°C – 40°C |
| Dimensions |
Approx. 150 × 100 × 71 mm |
| Weight |
Approx. 500 g |
