At the critical stage of the photovoltaic industry's iteration towards high power and high voltage, accurate detection of the IV curve of components and strings is the core link to ensure power generation efficiency and reduce operation and maintenance risks. LAILX has been deeply engaged in the research and development of photovoltaic testing technology for many years. With solid technical accumulation and rich industry experience, it has launched the LX-PV33 portable IV tester, which breaks through the performance bottleneck of traditional equipment with a 2000V/40A ultra large range, dual glass component exclusive testing, and intelligent operation experience. It provides high-precision and high-efficiency integrated solutions for photovoltaic power plant operation and maintenance, third-party testing, and component production quality inspection, setting a new benchmark for portable IV testing equipment. Outdoor IV tester

At present, the mainstream module power in the photovoltaic market continues to rise, and 1500V systems have been widely popularized. 2000V high-voltage systems are gradually becoming a trend. The traditional IV tester's 1000V/20A range can no longer meet the detection needs of high-power modules and strings, and is prone to problems such as insufficient range, insufficient detection accuracy, and data distortion, making it difficult to truly reflect the module's power generation performance. At the same time, the proportion of double glass components in photovoltaic power plants continues to increase due to their high durability, long lifespan, and excellent environmental resistance. Their double-sided power generation characteristics require higher algorithms and adaptability for detection equipment. Traditional equipment cannot accurately shield the impact of back panel electrical energy, resulting in large errors in positive side power generation efficiency detection. The LAILX R&D team focuses on industry pain points and has gone through two years of technological breakthroughs, integrating core technologies such as resistive testing modules, multi irradiation algorithms, and intelligent data processing to create the LX-PV33 portable IV tester, which comprehensively solves the difficulties of high-voltage and high-power detection and precise testing of double glass components.

The core advantage of LX-PV33 lies in its ultra wide range and ultra-high precision, completely breaking the performance limitations of traditional devices. The device supports up to 2000V DC voltage and 40A current detection, perfectly adapting to the testing needs of 2000V high-voltage systems, high-power half piece components, and double glass components, solving the pain point of insufficient range of traditional equipment. Using the latest resistance testing module independently developed by Lexus, combined with high-precision sampling chips, the single component detection accuracy reaches ± 0.5%, and the IV curve sampling points are as high as 1024, which can accurately capture the subtle parameter changes during the component power generation process, truly restore the component IV characteristic curve, accurately measure key parameters such as open circuit voltage (Voc), short-circuit current (Isc), maximum power point (Pmax), fill factor (FF), conversion efficiency (η), etc., providing reliable data support for component performance evaluation and fault diagnosis. In response to the double-sided power generation characteristics of double glass components, the equipment is equipped with a dedicated multi irradiation algorithm, which can effectively shield the interference of back panel power generation on the detection results. Only the power generation efficiency and STC conversion value of the front solar cells are calculated, achieving accurate detection of the front performance of double glass components and filling the gap in high-precision IV detection of double glass components in the industry.

In terms of portability and intelligent operation, LX-PV33 fully meets the needs of outdoor operation and maintenance scenarios, balancing performance and practicality. The device adopts a lightweight and portable design, with a host weight of only 3.5kg, and is equipped with a portable protective box. It can be easily carried by a single person to various complex photovoltaic power plant sites such as mountains, roofs, and water surfaces, without relying on fixed sites and large equipment, greatly improving outdoor detection flexibility. Equipped with a 7-inch high brightness touch screen, it is clearly visible under sunlight and supports dual operation modes of touch screen and physical keyboard. It is paired with WINCE graphic system and a fully Chinese operation interface, with simple and intuitive menus. Novices can quickly get started without professional training, reducing the operating threshold. The host is wirelessly connected to the irradiance meter and temperature sensor, with a maximum communication distance of up to 100 meters, eliminating the need for complicated wiring and adapting to long-distance detection scenarios, improving detection efficiency. The device is equipped with a large capacity storage, which can store more than 2000 sets of test data. It supports SD card expansion and USB data export, and is matched with PC analysis software to achieve data synchronization, curve analysis, automatic report generation and printing, meeting the needs of testing data traceability, archiving and analysis.

In addition, LX-PV33 has strong environmental adaptability and safety protection capabilities, suitable for complex outdoor working conditions. The device is equipped with a high-precision irradiance meter and temperature sensor, which can real-time collect environmental irradiance and component temperature, automatically complete STC standard condition correction, eliminate the influence of environmental factors on the detection results, and ensure the consistency and comparability of detection data in different environments. Equipped with overvoltage, overcurrent, and reverse connection protection functions, it can effectively avoid damage to equipment and components caused by operational errors or abnormal working conditions, ensuring the safety and reliability of the detection process. The body adopts industrial grade protection design, with a dust and water resistance level of IP65. It can operate stably in extreme temperature environments ranging from -20 ℃ to 60 ℃, and is suitable for various harsh outdoor scenarios such as high temperature, low temperature, humidity, and sand and dust, meeting the needs of all-weather testing throughout the year.

Since its launch, the LX-PV33 portable IV tester has been widely used in major ground photovoltaic power stations, distributed rooftop power stations, component manufacturing enterprises, and third-party testing institutions in China. With stable performance, accurate testing results, and convenient operating experience, it has gained high recognition from industry customers. In the future, LAILX in Suzhou will continue to focus on innovation in photovoltaic testing technology, continuously optimize product performance, launch more testing equipment that meets industry needs, help the photovoltaic industry achieve high-quality and sustainable development, and provide efficient operation and maintenance support for global photovoltaic power plants.

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