At the critical stage of photovoltaic power plants transitioning from high-speed construction to refined operation and maintenance, issues such as component performance degradation, hidden crack mismatch, and hot spot faults directly constrain the power plant's power generation efficiency and investment returns. Jiangsu Jingwei Technology is deeply involved in the field of photovoltaic testing, relying on self-developed core technologies and industry experience to create the JW-IV13 portable IV tester with ingenuity. With high-precision measurement, lightweight design, and intelligent analysis as the core, it has become an "all-round guardian" for on-site performance diagnosis of photovoltaic modules, providing one-stop accurate solutions for acceptance, inspection, and fault diagnosis of photovoltaic power plants. IV power detector
As the core equipment for performance testing of photovoltaic modules, JW-IV13 is based on the principle of current voltage (I-V) characteristic curve measurement. By accurately applying variable voltage and synchronously collecting corresponding current signals, it quickly draws a complete IV curve and power (P-V) curve, accurately analyzes key parameters such as open circuit voltage, short-circuit current, maximum power, fill factor, and conversion efficiency of the module, with a measurement accuracy of 0.1 level. The voltage testing range is 5-1500V and the current range is 0.5-30A. It is compatible with mainstream single crystal, polycrystalline, thin film modules and string testing in the market, covering the full scene needs of household, industrial and commercial, and large-scale ground power stations. For complex outdoor environments, the device is equipped with high-precision temperature sensors and intelligent compensation algorithms, which can automatically eliminate the interference of temperature drift and light fluctuations on measurement results. It can still output stable and reliable data in extreme temperatures ranging from -30 ℃ to 70 ℃, weak/strong light, rainy and other complex weather conditions, solving the pain points of large outdoor measurement errors and unstable data in traditional devices.
Portability design is the core breakthrough point of JW-IV13, completely breaking the limitations of traditional IV testers such as bulky size, difficult transportation, and the need for mains power supply. The whole machine adopts an integrated lightweight structure, and the shell is made of high-strength ABS material, with a dustproof and waterproof rating of IP65, which can resist outdoor dust and rainwater invasion; After storage, the volume is only equivalent to a small toolbox, weighing less than 8kg. It can be easily carried or carried by a single person and is suitable for movement detection in complex terrains such as mountains, roofs, and water surfaces. The device is equipped with a high-energy density lithium battery, which can continuously test more than 500 components on a single charge, with a battery life of up to 12 hours, without relying on mains power, completely freeing itself from the constraints of power cords; Paired with a quick connector design, the connection to the component junction box can be completed within seconds, and a single person can complete the entire testing process, significantly reducing labor costs and operating hours, and adapting to the needs of field inspections throughout the day.
Intelligent and data-driven empowerment make JW-IV13 the "intelligent hub" for photovoltaic operation and maintenance. The device is equipped with an AI intelligent analysis engine, which can analyze the characteristics of the IV curve in real time, automatically identify more than 10 common faults such as power attenuation, hidden crack gate, hot spot effect, bypass diode fault, series mismatch, etc., accurately label the fault location and severity, without the need for manual troubleshooting, and improve detection efficiency by more than 80%. Equipped with a 7-inch high-definition touch screen, visible under strong outdoor light, the operation interface is simple and intuitive, supports switching between Chinese and English, and can be quickly mastered without professional training; Built in large capacity storage module, capable of storing over 100000 sets of test data, supporting real-time data recording, historical tracing, and trend analysis, making it easy for operation and maintenance personnel to grasp the performance changes of components. Simultaneously supporting 5G wireless transmission and cloud synchronization, the detection data can be exported to Excel/PDF format with one click, automatically generating standardized detection reports, including curve graphs, parameter details, fault analysis, rectification suggestions, etc., suitable for acceptance archiving, remote collaboration, traceability analysis and other scenarios, helping photovoltaic enterprises achieve digital and intelligent operation and maintenance.
From the laboratory to the power plant site, from component factory testing to operation and maintenance troubleshooting, the JW-IV13 portable IV tester, with its core advantages of precision, portability, and intelligence, fully covers the testing needs of the entire photovoltaic industry chain. Jiangsu Jingwei Technology always adheres to the product concept of "precise detection, cost reduction and efficiency improvement", relying on self-developed technology and strict quality control system to ensure that every equipment has stable and reliable performance. In the future, Jingwei Technology will continue to deepen its innovation in photovoltaic detection technology, continuously optimize product performance, expand application scenarios, and provide solid technical support for the high-quality development of the photovoltaic industry, helping global photovoltaic power plants achieve efficient, stable, and sustainable power generation.
IV power tester, outdoor IV tester, current voltage power curve tester
