Accurate radiation measurement! Jiangsu Jingwei JW-F04 portable irradiance meter helps maximize the efficiency of photovoltaic power plants

June 2, 2026
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Solar irradiance is a core environmental parameter that affects the power generation efficiency of photovoltaic modules. Accurate measurement of irradiance data is crucial for the site selection, system design, power generation prediction, efficiency evaluation, and operation optimization of photovoltaic power plants. Jiangsu Jingwei Technology Co., Ltd. relies on precision optical sensing technology and deep experience in the photovoltaic industry to create the JW-F04 portable irradiance meter with ingenuity. Its core features include high-precision measurement, multi parameter synchronous monitoring, portability, durability, and intelligent calibration, providing accurate data support for photovoltaic system light energy evaluation and helping photovoltaic power plants achieve refined management and improve power generation efficiency. Portable irradiation system dosimeter


The power generation of photovoltaic power plants is positively correlated with solar irradiance. Traditional irradiance measurement equipment has problems such as low accuracy, single function, poor environmental adaptability, and insufficient data stability, making it difficult to meet the high-precision monitoring needs of the photovoltaic industry. The Jiangsu Jingwei JW-F04 portable irradiance meter adopts a secondary standard spectral response sensor and multi-channel optical detection technology to accurately match the spectral response characteristics of photovoltaic modules. It can synchronously measure the total solar radiation, scattered radiation, reflected radiation, and effective irradiance of photovoltaic modules in the plane. The measurement range is 0-1800W/m ², and the measurement accuracy is as high as ± 2%. The data stability is strong, and it can accurately capture dynamic changes in light energy resources, providing reliable basis for efficiency analysis of photovoltaic power plants.
In terms of functional design, JW-F04 balances professionalism and practicality, adapting to the needs of photovoltaic full scene monitoring. The device is equipped with an intelligent calibration module that supports both automatic and manual calibration, effectively offsetting measurement errors caused by factors such as temperature drift and optical attenuation, ensuring long-term measurement accuracy; Equipped with high-precision temperature sensors, it can synchronously monitor the ambient temperature and component surface temperature. Combined with irradiance data, it accurately calculates the theoretical power generation of photovoltaic modules, providing data support for power plant power generation evaluation and PR value analysis. At the same time, the device supports real-time display, storage, and export of data, with a built-in large capacity storage chip that can continuously store tens of thousands of monitoring data. With dedicated software, it can achieve data playback, analysis, and report generation, meeting long-term data traceability and operation analysis needs.


Portability and outdoor adaptability are the core competitiveness of JW-F04. The equipment adopts a lightweight and compact design, with a light weight and small size. It is equipped with a portable protective box, which is dustproof, moisture-proof, and shockproof. It can be easily carried by a single person to various photovoltaic power plant sites such as mountains, rooftops, Gobi, and coastal areas; Adopting industrial grade protective casing with a protection level of IP65, it can operate stably in extreme temperatures ranging from -30 ℃ to 70 ℃, high humidity, and strong wind and sand environments, and is not afraid of harsh outdoor working conditions; Equipped with a high-definition backlit display screen, it is clearly visible under strong light, and can read normally without supplementary light in low light environments. The operation interface is simple and intuitive, with one click to start measurement and data recording, and no professional knowledge required to quickly get started.
In addition, JW-F04 has strong data transmission and expansion capabilities, supporting dual communication modes of RS232 serial port and Bluetooth, and can quickly connect with devices such as computers and tablets to achieve real-time data transmission and remote monitoring; It can be used in conjunction with Jiangsu Jingwei IV tester, EL detector and other equipment to build a comprehensive testing system for photovoltaic power plants, providing a complete data link for the comprehensive evaluation of power plant performance. The equipment is widely used in photovoltaic power plant site selection survey, system design verification, construction acceptance, regular operation and maintenance, efficiency evaluation, fault diagnosis, and scientific research experiments. Whether it is a large-scale ground power plant, distributed photovoltaic, or household photovoltaic project, it can provide accurate and stable irradiance monitoring services.


Jiangsu Jingwei JW-F04 portable irradiance meter breaks through the technical and price barriers of imported irradiation equipment with its advantages of high precision, multi parameter, strong adaptability, easy operation, and stable performance, providing photovoltaic enterprises with a cost-effective light energy monitoring solution. In the future, Jiangsu Jingwei will continue to focus on innovation in photovoltaic environmental monitoring technology, continuously optimize sensor performance and algorithms, enhance equipment intelligence level, provide solid technical support for the refined operation and efficient development of the photovoltaic industry, and help China's photovoltaic industry continue to move forward with high quality in the "dual carbon" wave.


Portable irradiation system thermometer, photovoltaic performance evaluation tool, portable photovoltaic PR testing system

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