In the wave of rapid development of the global photovoltaic industry, the power generation efficiency and performance stability of photovoltaic modules directly determine the investment return and operating life of power plants. As the core equipment for acceptance, operation, and quality control of photovoltaic power plants, LAILX in Suzhou has launched the LX-PV31 portable IV tester, which redefines the portable IV testing standard with three core advantages: 1500V/30A over range, 10 second high-speed detection, and high-precision data acquisition, providing efficient, accurate, and reliable performance testing solutions for the entire photovoltaic industry chain.

The IV curve (current voltage curve) of photovoltaic modules is the "lifeline" that reflects their power generation performance. Through IV testing, key parameters such as open circuit voltage, short-circuit current, peak power, conversion efficiency, and fill factor can be accurately obtained. It is the core means of evaluating module quality, diagnosing performance degradation, and locating fault hazards. Traditional IV testers generally suffer from pain points such as insufficient range (mostly 1000V/20A), slow detection speed, low accuracy, and poor outdoor adaptability, making it difficult to meet the testing needs of current 1500V high-voltage string and high current half piece components. The research and development of LAILX LX-PV31 directly targets the pain points of the industry, relying on the company's decade long accumulation of photovoltaic testing technology and extensive on-site application verification, to create a portable testing tool that is suitable for all scenarios and full specification components.

The core advantage of LX-PV31 lies in the perfect integration of ultra wide range and ultra-high precision. The device supports a large testing range of 1500VDC/30A, easily covering the high current testing needs of mainstream 1500V high-voltage photovoltaic strings and half modules, completely solving the bottleneck of insufficient range of traditional equipment. In terms of accuracy, the voltage measurement accuracy reaches * * ± 0.1V * *, the current measurement accuracy reaches * * ± 0.001A * *, and the repeatability accuracy of power testing is controlled within * * ± 0.5% ± 3W * *, ensuring that each set of test data is accurate and reliable, providing authoritative basis for component performance evaluation. At the same time, the device is equipped with high-precision capacitive/resistive loads, coupled with a fast radiometer operation module and professional IV curve analysis software, which can analyze IV curves in high definition, achieve uninterrupted scanning testing, and accurately capture subtle changes in component performance.

Fast detection and convenient operation are another highlight of LX-PV31. The device adopts an integrated packaging design, integrating a high brightness color touch screen visible under sunlight, supporting dual operation of touch screen and keyboard, with a simple and intuitive interface, bilingual switching between Chinese and English, making it easy for beginners to get started quickly. Single component or string detection can be completed in just 10 seconds, synchronously generating IV curves, PV curves, and more than 20 key performance parameters, greatly improving the efficiency of power plant acceptance, inspection, and batch testing. The whole machine is equipped with a large capacity memory, which can store more than 2000 test waveforms. It supports SD card expansion and one click data export. Paired with a 100 meter wireless communication irradiation probe, it can synchronously collect environmental parameters such as irradiance, ambient temperature, and component temperature without on-site wiring, ensuring the integrity and comparability of test data.
In terms of outdoor adaptability and safety design, LX-PV31 also performs excellently. The equipment adopts industrial grade protective design, dustproof and waterproof, and can adapt to extreme working environments ranging from -20 ℃ to 50 ℃, easily coping with complex outdoor scenes such as deserts, plateaus, coasts, roofs, etc. High voltage isolation design and comprehensive overload, overvoltage, and reverse connection protection functions ensure the safety of operators and equipment; Support barcode scanning and binding of components to achieve precise traceability between test data and components, facilitating quality control throughout the entire lifecycle. In addition, the device has a built-in STC nominal parameter conversion function, which can automatically match more than 95% of the current photovoltaic panel specifications, quickly switch parameters and calculate power generation efficiency and conversion rate, and adapt to various component testing needs such as monocrystalline silicon, polycrystalline silicon, double glass, half sheet, perovskite, etc.

As a benchmark product in the field of photovoltaic testing, the LX-PV31 portable IV tester can be widely used in scenarios such as power plant construction acceptance, daily operation and maintenance inspection, component arrival inspection, third-party testing agency evaluation, and experimental research in research institutes. Whether it is high-precision efficiency testing of A-level boards, B-level board grading, or fault diagnosis and aging component performance evaluation of C-level boards, LX-PV31 can provide accurate and efficient testing support, helping photovoltaic power plants improve power generation efficiency, reduce operation and maintenance costs, and extend service life.

LAILX has been deeply engaged in the research and production of photovoltaic testing equipment for more than ten years, always adhering to the concept of "technological innovation drives industry progress". Its products have covered dozens of countries and regions around the world and have been widely recognized by industry customers. The heavyweight release of LX-PV31 this time is not only a concentrated reflection of the company's technological strength, but also a precise response to industry demand. In the future, LAILX will continue to focus on innovation in photovoltaic detection technology, continuously launching more high-performance and highly reliable detection equipment to safeguard the high-quality development of the global photovoltaic industry.