In the current era of the photovoltaic industry moving towards precision and digital operation and maintenance, hidden problems such as module power attenuation and string performance mismatch have become key bottlenecks restricting the improvement of power generation efficiency in power plants. With the widespread adoption of new high-power photovoltaic modules such as TOPCon and HJT, the drawbacks of traditional IV detection equipment, such as limited range, insufficient accuracy, and poor outdoor adaptability, continue to emerge, making it unable to meet the efficient detection needs of diversified photovoltaic power plants. In response to industry pain points, LAILX in Suzhou focuses on the full lifecycle testing needs of photovoltaics and innovatively develops the LX-PV31 portable IV tester. With its high-precision, lightweight, and intelligent hard core advantages, it breaks through the limitations of traditional testing equipment and provides a new solution for on-site performance testing, fault diagnosis, and acceptance verification of various photovoltaic power plants.Outdoor IV tester

As a new generation portable photovoltaic IV detection device, LX-PV31 has fully upgraded its hardware configuration and core algorithms, completely solving the performance shortcomings of traditional equipment. The equipment is equipped with an industrial grade high-speed sampling chip, which greatly increases the density of sampling points and can fully restore the precise IV curve shape. It can accurately capture subtle performance defects such as component cracking, PID attenuation, battery aging, and string mismatch, and avoid data distortion, missed detections, and false detections from the source. In terms of range and accuracy, the equipment supports 1500V high voltage testing and 30A high current detection, fully adapting to the current mainstream high-voltage photovoltaic string and high-power components, breaking the application barriers of traditional 1000V equipment. The voltage accuracy can reach 0.1V, and the current accuracy can reach 0.001A. Paired with a high-precision irradiance meter and temperature sensor, it can collect real-time environmental data on site. The built-in STC standard automatic conversion algorithm can accurately convert measured data under complex working conditions into standard working condition parameters, fully complying with the IEC 61215 international testing standard. The data accuracy can meet the traceability needs of third-party testing, power station operation and maintenance, component factory quality inspection and other scenarios. In response to the difficulty of double-sided component detection, the equipment is equipped with a self-developed exclusive correction algorithm, which effectively shields the interference of backplane power generation, accurately calculates the standard power of the components, and fills the market gap in precision detection of outdoor double-sided components.

In the design of outdoor practical scenarios, LX-PV31 deeply meets the needs of front-line operation and maintenance, focusing on lightweight portability and full scene adaptation. The whole machine is made of aviation grade protective chassis, with a sturdy and compact structure and a weight of less than 6kg. It can be easily carried and operated independently by a single operation and maintenance personnel, and can flexibly shuttle in complex scenarios such as rooftop distributed photovoltaics, mountain power stations, fishery complementary photovoltaics, and desert photovoltaic bases. The device is equipped with a 6.5-inch outdoor high brightness touch screen, which provides clear and visible images in strong light environments. It is paired with a simplified bilingual operation interface in both Chinese and English, allowing zero foundation operation and maintenance personnel to quickly get started. At the same time, the device supports 100 meter wireless communication, completely breaking free from the constraints of traditional wired wiring, effectively solving the wiring problems of high-altitude operations and large-scale power station inspections, and greatly reducing the safety risks of high-altitude operations. In terms of detection efficiency, scanning the complete IV curve of a single string or component only takes 10 seconds, which is more than 50% more efficient than traditional equipment and greatly shortens the inspection period of large power plants.

The support of intelligent functions has once again upgraded the operational practicality of this device. LX-PV31 is equipped with a massive database of mainstream component parameters, covering all categories of monocrystalline, polycrystalline, and new photovoltaic modules at home and abroad. It supports scanning codes to quickly retrieve parameters without the need for manual repeated input, greatly reducing redundant operations in batch testing. The device comes with a large capacity storage space, which can store more than 2000 sets of test waveforms. It supports SD card expansion and USB high-speed export. Paired with dedicated analysis software, it can automatically complete data archiving, curve comparison, and report generation, achieving closed-loop management of detection data. The detachable large capacity lithium battery ensures an 8-hour long battery life, fully meeting the needs of all day outdoor inspection operations. At the same time, the device supports component barcode binding, achieving precise matching between detection data and components, and can track the trend of component performance degradation for a long time, providing solid data support for the refined operation and maintenance, quality improvement and efficiency enhancement of power plants.

In terms of safety protection and environmental adaptability, LX-PV31 provides comprehensive protection. The equipment is equipped with multiple protection mechanisms for overvoltage, overcurrent, and reverse connection, effectively avoiding equipment damage and personnel safety risks caused by wiring errors and high-voltage testing. The whole machine is waterproof, shockproof, dustproof, and resistant to manufacturing. It can operate stably in harsh environments with a wide temperature range of -10 ℃ to 50 ℃, and easily cope with complex working conditions such as high-altitude sandstorms, southern humidity, and desert high temperatures. Widely applicable to full scenario operations such as component factory quality inspection, laboratory research and development testing, power station grid connection acceptance, annual preventive inspection, and precise fault location.

Nowadays, the photovoltaic operation and maintenance industry has bid farewell to extensive management, and precise and efficient testing has become an essential requirement in the industry. The Suzhou LAILX LX-PV31 portable IV tester breaks industry limitations with its hardcore performance, balancing accuracy, efficiency, portability, and safety, providing a cost-effective intelligent solution for photovoltaic power plant electrical performance testing. In the future, Lexus will continue to deepen the iteration of photovoltaic detection technology, continuously optimize equipment performance, and help the photovoltaic industry develop with high quality and digital stability.

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