Against the backdrop of the continuous promotion of the dual carbon strategy and the comprehensive transition of the photovoltaic industry towards the era of high voltage and high power, diversified projects such as centralized ground power stations, industrial and commercial rooftop photovoltaics, household distributed photovoltaics, agricultural photovoltaic complementarity, and mountain photovoltaics have rapidly landed, and the demand for on-site testing of photovoltaic modules and string performance has shown explosive growth. For a long time, the industry has generally faced pain points such as the bulky size, difficult handling, slow detection speed, weak ability to correct environmental interference, and inability to adapt to complex outdoor working conditions of traditional IV testing equipment. Laboratory desktop equipment can only be used in fixed locations, making it difficult to meet mobile operation needs such as site arrival acceptance, post disaster troubleshooting, regular outdoor inspections, and third-party on-site sampling. Suzhou Laikesi New Energy Technology Co., Ltd. (LAILX for short) has been deeply engaged in the research and development of photovoltaic photoelectric detection equipment for more than ten years. Relying on independent analog-to-digital conversion, intelligent light compensation, and lightweight structural design core technologies, it has launched the LX-PV31 portable IV tester, which provides an integrated mobile solution for photovoltaic full scene performance testing with core advantages such as lightweight body, millisecond level high-speed scanning, high-precision standard condition correction, and full component compatibility, redefining the outdoor IV detection industry standard. Current voltage power curve detector

The LX-PV31 has achieved ultimate lightweight innovation in its body structure. The whole machine adopts a high-strength and pressure resistant aluminum alloy protective box integrated packaging, and the internal circuit is integrated with a modular layout, eliminating the traditional equipment's complicated external accessories. It can be carried and transported by one person, and occupies minimal space after storage. Whether it is high-rise rooftop photovoltaic climbing operations, long-distance inspections of rugged mountain power stations, or vehicle transportation to remote rural household photovoltaic sites, it will not bring any burden to operation and maintenance personnel. The device is equipped with a large capacity long-lasting lithium battery, which can continuously complete over 300 complete IV curve tests when fully charged, without the need for frequent external power supply, completely solving the operational difficulties in outdoor scenarios without power supply; The body is equipped with a high-definition touch display screen, paired with physical shortcut operation buttons. The screen has clear visual effects in strong light, cloudy days, and low light environments at night. The bilingual operation interface is suitable for domestic operation and maintenance teams and overseas export projects, greatly reducing the learning threshold for equipment operation. Newcomers can independently complete the entire testing process with simple training.

In terms of core detection performance, LX-PV31 is equipped with LAILX's self-developed high-speed and high-precision ADC acquisition chip, which synchronously collects more than ten core electrical parameters such as open circuit voltage, short circuit current, maximum power point power, fill factor, series resistance, parallel resistance, etc. within milliseconds of a single scan. It can generate complete IV and PV characteristic curves with one click, and the detection time of a single component is controlled within 10 seconds, which is more than three times more efficient than traditional equipment. Batch component sampling in large power plants can greatly shorten the construction period and save manual operation and maintenance costs. The device is equipped with high-precision external irradiation sensors and component backplane temperature probes, combined with exclusive STC standard condition intelligent correction algorithms, which can capture real-time fluctuations in on-site light intensity, environmental temperature, and component surface temperature, automatically eliminate data deviations caused by outdoor weather changes, and accurately convert on-site measured values to national and IEC standard testing conditions. The testing data has authoritative traceability and can be directly used for power plant acceptance reports, third-party testing records, and component level determination work. For the current mainstream TOPCon, HJT, PERC monocrystalline modules, polycrystalline modules, double-sided double glass modules, and thin-film photovoltaic modules, LX-PV31 is equipped with corresponding exclusive testing models. When testing double-sided modules, it can automatically shield the backside radiation interference, accurately distinguish the power generation efficiency of the front and back sides, and adapt to the testing needs of the new high-efficiency module market; Simultaneously compatible with both single component and multiple series connected detection modes, the voltage range covers the mainstream 1000V photovoltaic system in the industry, meeting the detection needs of the vast majority of distributed and small to medium-sized ground power stations.

The intelligent functional design fully conforms to the pain points of front-line operation and maintenance. LX-PV31 is equipped with a wireless Bluetooth transmission module, which can synchronize the detection curve and parameter data in real time to tablet and mobile terminals. Performance defects caused by curve distortion, attenuation abnormalities, and shadow occlusion can be viewed on site, quickly determining component levels and distinguishing A, B, and C level faulty components; The body comes with a large capacity local storage, which can save tens of thousands of sets of detection data and curve graphs. It supports component barcode scanning binding function, and each set of detection data automatically matches the unique number of the component, realizing the full life cycle data traceability of the component from factory, installation to operation and maintenance scrap. In the later stage, the data can be exported to the computer with one click through a data cable, and standardized Word and PDF detection reports can be automatically generated, saving the tedious process of manual input, drawing, and table making. The device is equipped with multiple safety protection mechanisms, including automatic power-off protection for high voltage overvoltage, reverse connection, and short circuit. Real time pop-up risk prompts are displayed during operation. When working in outdoor rainy or humid environments, the protective box reaches IP54 dust and waterproof level to prevent water vapor and dust from entering and damaging the core circuit, greatly extending the service life of the device.

From the perspective of practical application scenarios, LX-PV31 covers the full process testing needs of the photovoltaic industry: component manufacturing enterprises use it for outdoor sampling of finished products for rapid screening of products with power attenuation failure; The photovoltaic EPC construction unit shall complete the performance acceptance of all modules before the project is connected to the grid, and investigate the power loss caused by collisions during transportation and installation; The power station operation and maintenance team is used for quarterly and annual routine inspections to locate fault clusters with low power generation efficiency; Third party testing institutions undertake photovoltaic evaluation and asset liquidation projects, providing legally binding standard testing data; At the same time, it is suitable for rapid screening of components damaged by rainstorm and hail after disaster, so as to complete the overall performance survey in a short time, providing data support for maintenance and replacement. After purchasing LX-PV31 in bulk, distributed photovoltaic operation and maintenance enterprises in Jiangsu, Anhui, and Shandong have reported that a single team can double the daily number of component inspections, significantly reduce equipment failure rates, and make outdoor mobile operations much more convenient than competing equipment of the same type.

As a representative of domestically developed photovoltaic detection instruments, Suzhou LAILX has always adhered to the path of technological self-reliance. All core acquisition chips, compensation algorithms, and intelligent analysis systems of LX-PV31 are independently developed by the enterprise, and there is no problem of core technology bottleneck. At the same time, it provides a three-year warranty for the whole machine, lifetime software free upgrades, and a 24-hour on-site technical service system nationwide to solve customers' concerns about later operation and maintenance. With the continuous development of photovoltaic systems towards high voltage, efficiency, and lightweight, outdoor mobile detection equipment will become a standard tool for power plants. The LX-PV31 portable IV tester, with its four core advantages of portability, high speed, precision, and intelligence, continues to help improve the quality and efficiency of the photovoltaic industry, providing reliable detection hardware support for the high-quality development of the domestic new energy industry. In the future, LAILX will continue to iterate and upgrade its detection technology, launching upgraded models suitable for 2000V high-voltage string detection, covering more large-scale ground power plant detection scenarios, and using hardcore domestic instruments to steadily achieve the dual carbon goal.

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