The self-developed YHEL-2400 PV module EL defect detector by Yoha Solar has been successfully delivered and installed at a PV experimental base in Xinjiang, officially launching regular testing and experimental analysis. The equipment fills the gap in high-precision latent defect detection at the northwest PV research base, providing solid professional hardware support for regional PV module performance verification, process optimization, new product testing and reliability research.
YHEL-2400 PV module EL defect detector
Endowed with abundant solar resources, Northwest China serves as a core hub for the domestic PV industry, with growing demands for testing and verification of innovative modules and manufacturing processes. PV experimental bases impose stricter requirements on detection accuracy, parameter stability and data traceability than conventional production quality inspection. Limited by insufficient accuracy and obvious data deviation, traditional equipment fails to meet refined research standards. Targeting such pain points, Yoha Solar optimized the performance of the YHEL-2400 detector. Adopting mature electroluminescence detection principles, the equipment enables non-destructive and high-precision PV module inspection, perfectly adapting to diverse scenarios including sample testing, process verification and scientific analysis.
In terms of detection accuracy, the YHEL-2400 is equipped with a 24-megapixel imaging system and high-sensitivity infrared camera. It accurately identifies microcracks smaller than 0.03mm and fully detects various latent defects such as hidden cracks, cell fragments, broken grids, black cells, cold and over soldering, material impurities and PID attenuation, supporting full-process detection before and after module lamination. With an ultra-large effective testing area of 2500×1400mm, it is highly compatible with mainstream large-size monocrystalline and polycrystalline PV modules.
Featuring excellent operational stability and flexible parameter adjustment, the equipment fully meets core research demands. The image acquisition time is adjustable from 1s to 60s, matched with a precision power supply system with 0–60V regulated voltage and 0–20A regulated current, enabling flexible debugging for different samples and test standards. It supports 24-hour continuous stable operation to satisfy high-intensity tasks such as batch detection and long-term reliability testing. Optimized with industrial-grade structure, the detector features simple installation and low maintenance costs.
HD Inspection Imaging
Equipped with dedicated PV testing software, the device delivers user-friendly human-computer interaction and automatic functions including barcode scanning, file naming and classified data archiving. To facilitate experimental traceability and process optimization, the software supports image magnification and retrospective analysis, clearly presenting tiny defect features to help researchers accurately locate problems and form a closed loop of detection, analysis and optimization.
The Yoha Solar EL defect detector operates stably within a wide temperature range of -10℃ to 40℃, perfectly adapting to Xinjiang’s unique climate with large day-night temperature differences and ensuring accurate and stable experimental data. With a compact and space-saving structure, the equipment can be quickly deployed in laboratory layouts without large-scale renovation, effectively improving the base’s research and testing efficiency.
Specializing in high-precision PV detection, Yoha Solar continuously optimizes testing equipment applicable for both mass production and scientific research scenarios. The deployment of the YHEL-2400 in Xinjiang marks a key layout in the northwest PV research market and fully validates the equipment’s research-grade performance and stability. Moving forward, Yoha Solar will continuously iterate detection technologies and equipment performance, focus on industrial innovation demands, and provide reliable equipment support for technological upgrading and quality improvement of the global PV industry.