With the rapid iteration of the photovoltaic industry towards high voltage, scale, and high power, 1500V high-voltage photovoltaic systems have been widely popularized, and large-sized half piece modules and high-power strings have become mainstream in the market. The pain points of traditional IV testing equipment, such as insufficient range, low accuracy, inefficient operation, and poor outdoor adaptability, are becoming increasingly prominent, seriously restricting the efficiency and quality of photovoltaic power plant construction acceptance, daily operation and maintenance, and fault diagnosis. In response to the urgent needs of industry development and market pain points, Suzhou Laikesi New Energy Technology Co., Ltd. (LAILX) has been deeply involved in the field of photovoltaic testing for many years. Based on its core technology accumulation and massive practical experience in various scenarios, it has launched the LX-PV31 portable IV tester. With the comprehensive advantages of high voltage range, high precision, high efficiency, and strong portability, it reconstructs the standards for photovoltaic module and string testing, and provides a professional and reliable integrated solution for quality control throughout the entire life cycle of photovoltaic power plants. Current voltage power curve detector

At the core performance level, the LX-PV31 portable IV tester has achieved a dual breakthrough in range and accuracy, perfectly adapting to the current mainstream photovoltaic detection scenarios. Targeted hardware upgrades have been made to the equipment, with a maximum testing voltage of up to 1500V and a maximum testing current of 30A. This fully covers the testing needs of 1500V high-voltage photovoltaic systems, high-power monocrystalline and polycrystalline components, and half chip components, completely solving the problem of traditional equipment being unable to adapt to high current component detection and limited high-voltage scene range. It accurately matches the full scene detection needs of large ground power stations, distributed industrial and commercial power stations, and household photovoltaic power stations at present. In terms of accuracy performance, the equipment has been verified by the authoritative Chinese Academy of Metrology, with a voltage measurement accuracy of 0.1V and a current measurement accuracy of 0.001A. The overall testing accuracy is controlled within ± 0.5% ± 0.2V, far exceeding the industry standard, and can accurately capture various core parameters in the photovoltaic power generation process.

This device can fully draw I-V curves and P-V curves, accurately calculate more than 20 key indicators such as short-circuit current, open circuit voltage, peak power, fill factor, photoelectric conversion efficiency, series resistance, parallel resistance, etc., comprehensively covering the core dimensions of photovoltaic module power generation performance evaluation. It can not only accurately identify hidden problems such as component attenuation, performance attenuation, and matching abnormalities, but also provide accurate data support for power plant installation acceptance, power generation evaluation, and fault tracing. At the same time, the device is equipped with an intelligent temperature and irradiation acquisition module, with an environmental temperature measurement range covering -30 ℃~100 ℃ and a testing accuracy of ± 1 ℃. It can automatically calibrate on-site test data to STC standard testing conditions, avoid environmental interference, and ensure consistency and comparability of test data in different scenarios and time periods.

The innovation of homework efficiency and operational experience is one of the core competitiveness of LX-PV31. Traditional photovoltaic IV testing equipment is cumbersome to operate, has slow scanning speed, and takes a long time for single group testing, making it difficult to adapt to the batch testing needs of large-scale power plants. The LX-PV31 is equipped with a high-speed scanning detection algorithm, which takes only 10 seconds to detect a single component or a single string. Compared with traditional equipment, the operating efficiency is increased by more than three times, greatly shortening the acceptance testing and operation and maintenance inspection cycle of large photovoltaic power plants. The device is equipped with a 6.5-inch high-definition color LCD touch screen and a bilingual intelligent operation interface in Chinese and English. The functional zoning is clear and the operation logic is simple. Novice operators can quickly get started without professional training, greatly reducing the threshold for device use. At the same time, the device supports one click start detection, automatic data calculation, and one click export of reports, making the entire process intelligent, reducing manual operation errors, and improving the standardization of detection.

For complex outdoor work scenarios, LX-PV31 has been fully adapted and optimized, with full portability and battery life. The equipment adopts a lightweight integrated design, abandoning the traditional cumbersome structure of split type. The compact and portable body can be easily carried to various work sites such as roofs, mountains, and water power stations. Innovatively adopting 100 meter wireless signal transmission technology, the host and irradiance/temperature probes do not require cable connections, completely freeing itself from cable constraints and perfectly solving the wiring problems of high-altitude operations and large-scale power station inspections, greatly improving operational flexibility. In terms of battery life, the device is equipped with a replaceable high-capacity lithium battery module, which can achieve continuous and uninterrupted operation for 8 hours on a single full charge, fully meeting the power needs of all day outdoor inspections and batch testing, without frequent charging, effectively improving the continuity of outdoor operations.

In terms of data management and traceability system, LX-PV31 has powerful storage and data analysis capabilities. The device is equipped with a large capacity storage chip, which can store more than 2000 complete test waveforms and data reports. It also supports SD card expansion, which can meet the massive data storage needs of long-term and large-scale photovoltaic power plants. Equipped with professional level IV curve analysis software, it can automatically organize test data, generate standardized testing reports, support data query, comparative analysis, curve playback, abnormal data labeling and other functions, facilitate staff to trace the trend of equipment performance changes, and provide complete data support for long-term operation and maintenance of power plants, component iteration optimization, and precise fault tracing. In addition, the equipment has passed multiple authoritative certifications such as CE and ROHS, ensuring quality and safety compliance, strong durability, and can adapt to complex and harsh outdoor working conditions for a long time.

As the core equipment for photovoltaic testing built by LAILX, the LX-PV31 portable IV tester accurately targets industry pain points. With multiple advantages such as high voltage adaptation, high-precision testing, fast operation, portability and durability, and intelligent traceability, it is fully adapted to various scenarios such as photovoltaic power plant construction acceptance, daily operation and maintenance, fault diagnosis, and third-party testing. In the future, LAILX in Suzhou will continue to deepen its cultivation in the field of new energy testing, focus on industry technological innovation and scene demand, continuously optimize product performance, launch more high-quality and intelligent testing equipment, and help the photovoltaic industry develop efficiently, with high quality and sustainability.

Current voltage power curve detector, photovoltaic power station IV power detector, portable solar cell tester