UT503PV has the function of measuring photovoltaic live insulation resistance (it can measure photovoltaic insulation resistance without power outage/short circuit of photovoltaic solar panels or at night, the maximum DC 1000V), ordinary insulation resistance function (non-live), AC and DC voltage automatic recognition measurement, stepping voltage, Bluetooth transmission, automatic discharge, high voltage live warning, remote control test pen operation test and other functions.
The UNI-T UT503PV is a specialized photovoltaic insulation tester designed for professionals who demand reliable and accurate testing capabilities in solar energy installations. This advanced instrument allows for live insulation resistance measurement of photovoltaic systems without requiring power outage or short-circuiting of solar panels—even testing at night with maximum DC 1000V capability. Featuring superior accuracy, comprehensive testing options, and modern connectivity through Bluetooth and USB-C, the UT503PV stands above market alternatives with its broader feature set and competitive pricing, making it the ideal choice for solar installation professionals, maintenance technicians, and electrical engineers working with renewable energy systems.
The UT503PV combines standard insulation resistance functionality with specialized PV capabilities, automatic voltage recognition, and smart safety features that protect both equipment and operators in high-voltage environments. With an IP54-rated rugged construction and intuitive interface, this tester delivers consistent performance in challenging field conditions while maintaining industry-leading accuracy across its measurement range.
- Live PV Insulation Testing - Measure photovoltaic insulation resistance up to DC 1000V without system shutdown
- Multi-Voltage Testing Range - Supports comprehensive testing at 125V, 250V, 500V, and 1000V output voltages
- High Measurement Accuracy - ±1.5% accuracy for insulation resistance values from 1.51Mohms to 1000Mohms
- Dual Connectivity Options - Bluetooth app support and USB Type-C data transmission
- Automatic Discharge - Fast, automatic discharge after measurement for enhanced safety
- Extensive Data Storage - Save up to 1000 test results for documentation and analysis
- High Voltage Live Warning - Built-in alarm system for operator safety in high-voltage environments
- Comparative Function - Quick pass/fail testing with user-defined thresholds
- Remote Control Test Probe - Operate testing functions from the probe for one-handed convenience
- Stepping Voltage Capability - Progressive voltage testing for detailed insulation analysis
- Extensive Measurement Range - Test insulation resistance up to 4000Mohms at 500V and 1000V
- Industrial Protection Rating - IP54 water and dust resistance (with cap closed)
Applications
- Solar PV Installation & Commissioning
- Maintenance & Troubleshooting of PV Systems
- Battery Storage Systems / EV & Renewable Integration
- General Insulation Resistance Testing
Each Unit Includes
- 1 - Solar Pro PV Insulation Tester (UT309E)
- 1 - Remote Control Test Probe with Integrated Operation Buttons
- 1 - Standard Test Lead Set (red/black)
- 1 - Alligator Clip Set
- 1 - Lithium Battery (Installed)
- 1 - Hard Cloth Bag
- 1 - USB Type-C Cable
- 1 - Quick Start Guide
- 1 - Calibration Certificate
- 1 - User Manual
