The performance testing of photovoltaic modules IV, evaluation of solar energy resources, verification of power plant power, and conversion of STC standard operating conditions all rely on accurate and stable irradiation and temperature benchmark data. The ordinary civilian radiation meters on the market generally have problems such as poor spectral matching, large measurement errors, severe temperature drift, inability to link with professional detection equipment, bulky and inconvenient body, etc. Separating the recording of light and temperature data for manual conversion can easily produce double errors, directly leading to misjudgment of component power and causing disputes in operation and maintenance rectification and engineering acceptance. Jiangsu Jingwei Technology has matched its own IV and EL detection equipment ecosystem and launched the JW-F04 portable irradiance meter, equipped with a second level standard professional sensing unit, to achieve high-precision acquisition of dual parameters of irradiation and temperature synchronization. The lightweight portable body is suitable for full scene field testing and has become an indispensable benchmark measurement supporting equipment for photovoltaic field testing. Today's headline. Portable irradiation system dosimeter
The JW-F04 core sensing unit strictly follows the ISO9060 Level 2 standard manufacturing process, using imported quartz glass encapsulated silicon photovoltaic cells. The spectral response curve perfectly matches the AM1.5 standard solar spectrum and silicon-based photovoltaic cell photosensitive band, and the spectral matching error is controlled within ± 2%, which is significantly better than the general illuminance meter; The irradiance measurement range covers 0 to 2000W/㎡, fully covering the full range of weak light conditions in the morning and evening, and strong light conditions at noon. The comprehensive measurement accuracy is better than ± 2%, meeting the acceptance standards of third-party metrology laboratories. The collected data can be directly used for power plant grid registration and formal testing report issuance, with complete metrological compliance effectiveness.
The device is equipped with a multi-stage intelligent temperature compensation algorithm and a multi-stage circuit compensation chip, which optimizes the temperature drift correction model for outdoor day night temperature differences, summer high temperature exposure, and winter low temperature frost conditions. It continuously and stably outputs data in a wide temperature range of -30 ℃ to 70 ℃, eliminating the problem of sensing zero drift caused by high and low temperature environments. Whether it is a high-temperature centralized power station in the northwest Gobi, a photovoltaic project in the northeast high-altitude mountainous areas, or a distributed project on rainy and high humidity roofs in the south, they can maintain stable measurement values for a long time, avoid distortion of lighting data caused by temperature fluctuations, and reduce component power calculation deviation from the source. The device supports synchronous collection of three core parameters: total irradiance, component backplate temperature, and ambient air temperature. Unlike a single irradiation measurement device, it fully covers all environmental variables required for photovoltaic STC standard conversion, without the need for additional temperature measurement instruments, simplifying the number of devices carried in the field.
The integrated ultra lightweight and portable design is the core highlight of JW-F04's adaptability to mobile operations. The overall size of the machine is only 120 × 80 × 45mm, and the total weight of the host is less than 300g. It can be held and operated with one hand, and is equipped with a waterproof and wear-resistant storage bag. It can be directly fastened and fixed on the JW-IV12 portable IV tester chassis and tripod bracket without separately occupying the space of the transport bag. It can be carried synchronously with the entire testing equipment, without increasing the burden on operation and maintenance personnel in the field. The sensing probe is equipped with a universal adjustable bracket and magnetic dual interface, which can be attached to the metal photovoltaic frame or fixed on the tripod for long-term fixed-point monitoring; The split type 1.5-meter extended anti bending cable can smoothly attach the probe to the surface of any inclined component, accurately collect the real radiation values of inclined surfaces, and adapt to various irregular installation scenarios such as flat roofs, sloping roofs, mountain tracking brackets, floating photovoltaics on water, etc. The measurement process does not require frequent movement of the host equipment, and a single person can complete the full point sampling operation. Today's headline.
The data exchange capability realizes the integrated closed-loop of photovoltaic detection. JW-F04 is equipped with wired RS232 and wireless Bluetooth dual transmission modes, which can seamlessly link with Jiangsu Jingwei JW-IV12 portable IV tester, synchronizing real-time irradiation and temperature raw data. The equipment is equipped with a professional STC standard correction model, which can complete the conversion of measured electrical performance parameters to standard operating conditions with one click on site, completely solving the double error caused by separate measurement and manual recording conversion. After being used in combination, the IV curve power calculation error can be reduced by more than 70%, greatly reducing the misjudgment of component power attenuation due to inaccurate light measurement, avoiding unnecessary component replacement and maintenance costs. At the same time, Bluetooth can connect to dedicated data apps for mobile phones and tablets, automatically generating all day radiation change curves and peak sunshine duration statistical reports, intuitively presenting the distribution characteristics of site light energy, providing scientific and quantitative basis for the site selection, component installation inclination optimization, and installed capacity ratio of new photovoltaic projects.
The battery life design is fully adapted to long-term field surveys, and the equipment is equipped with low-power high-capacity lithium batteries. The conventional instantaneous measurement point mode can continuously monitor for 150 hours; Enabling timed automatic storage mode supports 7-day unmanned fixed-point solar energy resource survey in the field, equipped with a universal Type-C fast charging interface, and can be quickly recharged with a mobile phone charging cable. No additional dedicated charger is required for field operations. The overall protection level of the device meets the IP65 industrial standard, and the probe is equipped with anti condensation and anti dust coating. It will not experience aging or failure of the sensing unit when placed outdoors for a long time, and is resistant to rain and UV aging. It is suitable for outdoor operations throughout the year.
Full scenario application covering the entire photovoltaic industry chain demand: In the early survey stage of photovoltaic power plants, it is used for evaluating site solar energy resources, calculating peak sunshine and annual power generation expectations; During the EPC project acceptance stage, cooperate with the IV tester to complete component power standardization verification; During the operation and maintenance inspection phase, synchronized collection of light temperature data is carried out to accurately distinguish between light fluctuations and the decrease in power generation caused by component attenuation; Third party testing institutions go out to collect evidence and provide compliant benchmark irradiation data; Research institute photovoltaic experiment, long-term fixed-point collection of high-precision light energy environmental parameters.
The Jiangsu Jingwei JW-F04 portable irradiance meter has four major advantages: high-precision sensing, stable measurement across all temperature ranges, lightweight portability, and integrated equipment linkage. It fills the gap in photovoltaic field detection benchmark measurement and forms a complete photovoltaic field detection tool combination with JW-IV12, JW-EL2 and other equipment. Jiangsu Jingwei continues to deepen its cultivation in the field of photovoltaic measurement and testing, using standardized and high-precision domestically produced supporting instruments to promote the standardization of photovoltaic on-site testing processes and the development of precise data.
Portable irradiation system thermometer, portable photovoltaic PR testing system, photovoltaic performance evaluation tool
