Jiangsu Jingwei JW-IV13 portable IV tester: precise mapping of IV curves, empowering efficient operation and maintenance of photovoltaics

6 月 15, 2026
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Jiangsu Jingwei JW-IV13 portable IV tester: precise mapping of IV curves, empowering efficient operation and maintenance of photovoltaics


In the wave of precision operation and efficient power generation in the photovoltaic industry, accurate evaluation of module performance is the core link to improve the quality and efficiency of power plants. Jiangsu Jingwei Technology Co., Ltd. (formerly known as Jiangsu Fuzhun Metrology) is deeply engaged in the field of photovoltaic testing technology. With self-developed core technology and profound industry accumulation, we have ingeniously created the JW-IV13 portable IV tester. With three core advantages of high-precision measurement, intelligent diagnosis, and lightweight design, it has become a "mobile laboratory" for photovoltaic module performance testing, providing reliable support for the entire process of photovoltaic power plant acceptance, inspection, and fault diagnosis. IV power detector


The IV characteristic curve of photovoltaic modules is the core basis for reflecting their power generation performance. Traditional IV detection equipment has pain points such as insufficient accuracy, poor portability, and weak outdoor adaptability, making it difficult to meet the requirements of efficient field detection. Jiangsu Jingwei Technology has directly targeted the pain points in the industry, relying on high-frequency sampling technology and adaptive electronic load control technology to develop the JW-IV13 portable IV tester, achieving a perfect integration of portability and high precision, completely breaking down the technical barriers of outdoor high-precision IV detection.


The core competitiveness of JW-IV13 portable IV tester lies in millimeter level precise measurement and full parameter intelligent analysis. The equipment adopts a self-developed high-frequency sampling chip with a sampling rate of up to 100kHz, which can quickly capture the complete IV characteristic curve of the photovoltaic string within 3 seconds. It accurately measures 12 core parameters such as short-circuit current, open circuit voltage, maximum power point voltage/current, maximum power, and fill factor, with a measurement accuracy of ± 0.5%, far exceeding the industry standard for ordinary equipment. At the same time, the built-in AI intelligent diagnostic algorithm can perform multi-dimensional deep analysis on the IV curve, automatically identify complex problems such as component power attenuation, hot spot effect, occlusion loss, series mismatch, bypass diode faults, and abnormal line connections, without the need for manual analysis, greatly improving the efficiency and accuracy of fault diagnosis.


JW-IV13 has achieved comprehensive breakthroughs in portability and outdoor adaptability design. The whole machine adopts a lightweight industrial design, weighing only 6.8kg, and is equipped with a high-strength protective box. It can be easily carried by a single person to any position in the power station, without any aviation carrying restrictions, and can flexibly adapt to complex terrain detection scenarios such as mountains, roofs, and water surfaces. The device is equipped with a high brightness outdoor visual touch screen, which is clearly visible under strong light and supports glove operation; Equipped with a long-lasting dual battery system, the battery life exceeds 8 hours, meeting the needs of all day field operations. It also supports external power supply to ensure stable operation in a non mains environment. In addition, the whole machine has a dustproof and waterproof rating of IP65, which can resist outdoor dust and rainwater invasion. It can still work stably in extreme temperature environments ranging from -20 ℃ to 60 ℃, and is suitable for various complex climate conditions.


Intelligent data management and efficient collaboration capabilities make JW-IV13 more in line with the digital operation and maintenance needs of the photovoltaic industry. The equipment is equipped with a professional analysis platform, which has real-time data visualization, automatic anomaly annotation, and one click report generation functions. The detection report includes IV curves, core parameters, fault analysis, and solution suggestions. The format is standardized and can be directly used for acceptance, archiving, and operation and maintenance decision-making. Simultaneously supporting 5G cloud data synchronization and remote collaboration, operation and maintenance personnel can upload real-time detection data to the cloud platform, and experts can participate in fault diagnosis remotely, greatly improving the efficiency of cross regional operation and maintenance collaboration. In addition, the device has a built-in data calibration function that can automatically calibrate measurement parameters on a regular basis, ensuring long-term measurement accuracy and reducing manual calibration costs.


With its core advantages of precise measurement, portability, efficiency, and intelligent ease of use, the JW-IV13 portable IV tester has been widely used in various scenarios such as photovoltaic power plant construction acceptance, regular performance evaluation, system efficiency troubleshooting, and precise fault location, covering household, industrial and commercial, large-scale ground, and fishery photovoltaic complementary projects. Whether it is the arrival acceptance and installation quality inspection of newly built power stations, or the regular inspection, power attenuation monitoring, and fault troubleshooting of operating power stations, JW-IV13 can provide efficient and reliable technical support to help photovoltaic enterprises improve their operation and maintenance management level, reduce operation and maintenance costs, and ensure long-term stable and efficient power generation of power stations.


Jiangsu Jingwei Technology, as an innovative enterprise in the field of photovoltaic detection equipment, always adheres to the product concept of "precise detection, efficient operation and maintenance, cost reduction and efficiency improvement", and continuously overcomes the technical difficulties of photovoltaic detection based on the actual needs of users. The successful development of the JW-IV13 portable IV tester not only fills the gap in high-precision outdoor IV testing equipment in China, but also replaces imported products with domestically produced and cost-effective products, significantly reducing the testing costs of photovoltaic enterprises and promoting the high-quality development of the photovoltaic industry. In the future, Jiangsu Jingwei Technology will continue to focus on innovation in photovoltaic detection technology, continuously optimize product performance, expand application scenarios, and provide higher quality products and services to safeguard the safe and stable operation of global photovoltaic power plants and maximize power generation benefits.


IV power tester, outdoor IV tester, current voltage power curve tester

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