With the rapid iteration of the global photovoltaic industry towards 1500V high-voltage systems and high-power components, higher requirements have been put forward for the accuracy, convenience, and safety of testing equipment in the construction, acceptance, and operation of power plants. Suzhou Laikesi New Energy Technology Co., Ltd. (LAILX) has launched the LX-PV31 portable IV tester with profound technical accumulation and industry insights. With powerful testing capabilities of 1500V/30A, 10 second high-speed scanning, and integrated portable design, it provides efficient and reliable solutions for quality control throughout the entire life cycle of photovoltaic power plants, becoming the preferred testing equipment for power plant construction parties, operation and maintenance teams, and third-party testing institutions.

As a standard photovoltaic string IV tester by Lexus, the core performance of LX-PV31 comprehensively benchmarks the forefront of the industry, accurately solving the pain point of insufficient range of traditional 1000V/20A equipment and perfectly adapting to the current development trend of the photovoltaic industry. It is reported that the global IV curve analyzer market is steadily growing and is expected to reach $100 million by 2031. The Asia Pacific region has become the main demand area due to the rapid growth of photovoltaic installed capacity, and the popularity of 1500V high-voltage systems has further driven the market demand for high-end detection equipment. LX-PV31 accurately seizes this market opportunity by increasing the maximum testing voltage to 1500V and the maximum testing current to 30A, which can fully cover the testing needs of mainstream 1500V photovoltaic systems and high-power components such as half cells and large sizes. A single device can complete IV curve scanning and power detection from a single component to the entire string, without the need for additional equipment, greatly reducing users' procurement and usage costs.

In terms of measurement accuracy, LX-PV31 demonstrates excellent professional standards, equipped with high-precision capacitive/resistive loads and professional sampling modules. The voltage measurement accuracy reaches 0.1V, the current measurement accuracy reaches 0.001A, and the voltage and current testing accuracy is better than 0.2%. After authoritative verification by the Chinese Institute of Metrology, it meets and exceeds the product specifications. This device can accurately capture the current voltage characteristics of components under natural light, and fully output core parameters such as open circuit voltage, short-circuit current, maximum power point, fill factor, conversion efficiency, etc. It also supports the measurement of series resistance, parallel resistance and other parameters, providing reliable data support for power plant design optimization, component quality judgment and fault diagnosis. In addition, the equipment is equipped with high-precision irradiance meters, environmental temperature and component temperature sensors, real-time synchronized testing of environmental data, and supports STC (Standard Test Conditions) automatic conversion. It can achieve maximum power accuracy better than ± 5% under stable irradiance ≥ 700W/m ² and spectral AM1.5 conditions, ensuring consistency and comparability of test results under different working conditions. It complies with multiple international and industry standards such as IEC 61215-2005 and IEC 60904-2, and can be used as a third-party measurement basis.

In response to the characteristics of "multiple points, wide coverage, and complex environment" in on-site testing of photovoltaic power plants, LX-PV31 has been comprehensively optimized in terms of portability and operational efficiency, completely changing the cumbersome and cumbersome status of traditional testing equipment. The device adopts an integrated packaging design, with dimensions of 390 * 300 * 200mm and a maximum weight of less than 6kg. It is equipped with a high-capacity lithium-ion battery that can work continuously for 8 hours. It supports battery module replacement and has a long battery life. Engineers can carry it alone to various power plant scenarios such as rooftops, mountains, and deserts, greatly reducing the difficulty of on-site deployment. The operation interface adopts a bilingual design in Chinese and English, equipped with a 6.5-inch, 640 * 480 resolution color LCD touch screen and physical buttons. It is visible under sunlight and has clear functional zoning. Even in outdoor strong light environments, it can be easily operated to meet the needs of users with different languages and operating habits. The simple operation menu allows users to quickly master various functions of the instrument.

In terms of efficiency, LX-PV31 has achieved a qualitative leap, with a single component/string completing high-speed scanning in 10 seconds, far exceeding the detection speed of traditional equipment and significantly shortening the on-site detection cycle. The device is equipped with a rich database of solar cell module correction models, covering the products of most module manufacturers. It supports one click import of parameters to avoid duplicate settings when switching between different specifications of components. At the same time, it is equipped with a unique barcode scanning function to quickly identify component information, achieve precise binding between test data and component identity, and facilitate subsequent data traceability and management. After the detection is completed, it supports one click data export, which can directly generate Excel reports and professional IV curve analysis charts without the need for secondary sorting. Data archiving and report output can be completed on site, greatly improving the efficiency of detection and operation. In addition, the device can achieve continuous testing at intervals of 20 seconds, helping users continuously monitor various performance parameters of components and conduct comparative analysis. It can also detect the cumulative power generation of current components/strings in real time, compare the power generation value of the entire photovoltaic power plant, calculate the power plant PR value, and provide strong support for power plant efficiency evaluation.

To adapt to the diverse detection scenarios of photovoltaic power plants, LX-PV31 integrates multiple intelligent designs to comprehensively solve the pain points of traditional equipment in complex environments. Bluetooth or serial wireless connection technology is used between the host and the test probe, with a maximum communication distance of up to 100 meters, completely freeing engineers from cable constraints. Engineers can operate in a safe location away from high-voltage areas, ensuring personal safety and flexible response to detection needs in different terrains. The device is equipped with a patented probe box and temperature probe mounting bracket, which can quickly and stably fix the probe on the surface of the component, ensuring the accuracy of temperature and irradiance data acquisition and avoiding manual installation errors that may affect test results. At the same time, LX-PV31 is equipped with multiple safety mechanisms such as overvoltage, overcurrent, and reverse connection protection, effectively ensuring the safety of equipment and operators in 1500V high-voltage testing scenarios, and eliminating safety hazards in high-voltage detection. The built-in large capacity memory can store over 2000 test waveforms, support SD card slot expansion, and can synchronize data stored on the host to the PC for software analysis through USB, facilitating historical data tracing and comparison.

With its core advantages of high voltage adaptation, precise measurement, portability, efficiency, and safety intelligence, the LX-PV31 portable IV tester is widely used in various scenarios such as photovoltaic power plant construction acceptance, arrival quality inspection, daily operation and maintenance, fault diagnosis, and scientific research and teaching. During the construction phase of the power station, the string electrical performance testing can be quickly completed to ensure that the quality meets the standards before the power station is connected to the grid; During the operation and maintenance phase, regular inspections can promptly detect faults such as component attenuation, hot spots, hidden cracks, and shadow obstruction, avoiding loss of power generation; In the field of third-party testing and scientific research, its high-resolution testing mode of up to 400 points and Ethernet monitoring function that complies with Modbus/TCP protocol can meet the needs of scientific research and provide accurate data support for component quality evaluation and technology development. As a local photovoltaic testing equipment enterprise in Suzhou, LAILX always adheres to independent research and technological innovation, providing users with 24-hour fast after-sales and free software and hardware upgrade services, 1-year original factory warranty, and a professional team that can provide customized research and development support. The launch of LX-PV31 not only fills the market gap of high-end portable 1500V IV testers in China, but also breaks the monopoly of imported equipment in this field with the advantages of high cost-effectiveness and localized services, injecting strong impetus into the high-quality development of China's photovoltaic industry and helping to achieve global energy transformation and sustainable development goals.