Multi-grade Automatic Solar Cell EL+IV Tester
The Multi-grade Automatic Solar Cell EL+IV Tester is a highly integrated key piece of equipment for photovoltaic cell production. It can fully automate the loading/unloading, transfer, positioning, Electroluminescence (EL) defect inspection (identifying micro-cracks, broken fingers, contamination, etc.), and Current-Voltage (IV) characterization (precisely measuring core electrical parameters such as efficiency, power, open-circuit voltage, short-circuit current, etc.) of solar cells on a single machine. Based on preset multi-grade criteria (such as efficiency, power, color, appearance grade, etc.), it automatically and precisely sorts and classifies the cells. This equipment significantly enhances the efficiency, accuracy, and consistency of cell testing and sorting, reduces manual intervention and breakage rates, and is a core automated asset for ensuring cell quality and meeting the demand for efficient module matching.
Product Features
Integrated: Combines EL inspection + IV testing + automatic sorting functions into one system.
Automated: Automatic loading/unloading, transfer, testing, and sorting, minimizing manual labor.
Dual Detection: EL Inspection: Non-destructive optical inspection, revealing internal defects (micro-cracks, broken fingers, fragments, contamination, process anomalies, etc.). IV Testing: Precisely measures key electrical performance parameters (Eff, Pmpp, Voc, Isc, FF, etc.).
Multi-grade Sorting: Classifies cells with high precision based on comprehensive preset criteria including EL results (appearance grade, defect type) and IV test results (efficiency, power grade).
Efficient & Precise: High-speed testing and sorting (typically reaching thousands of pieces per hour), delivering reliable and consistent results.
Core Value: Enhances cell production efficiency and quality control, laying the foundation for efficient subsequent module stringing and precise power matching.
Technical Specifications
Model: YHZD-ELIV
Cell Specification: Compatible with Mono-crystalline, Poly-crystalline, PERC, HJT, TOPCon, etc.
Camera Resolution: 5 Megapixels
Camera Type: Custom High-Definition Industrial Camera
Testing Orientation: Vertical Downward
Light Source: Complies with IEC 60904-9:2020 Standard
Irradiance Instability: ≤2%
Irradiance Non-Uniformity: ≤2%
Single Flash Pulse: 10ms
Throughput: 2000~5000 pieces/hour
Breakage Rate: ≤0.05% (Grade A+ cells)
Sensitivity: Can detect cracks narrower than 0.03mm
Loading/Unloading Method: Automatic Loading/Unloading
Effective Test Area: 230*230mm
Sorting Cassettes: 8 Sorting Cassettes (Optional)
Function Expansion: AOI/PL Inspection function can be added
Product Applications
PV Cell Manufacturing Plants: This is the primary application field, used for quality control and performance grading at the final stage of the cell production process.
Cell Performance Grading: Core application! Utilizes IV testing to precisely measure the electrical performance parameters (efficiency, power, etc.) of each cell and automatically sorts them into different performance grades based on preset fine criteria (e.g., 0.1% efficiency intervals).
Cell Defect Detection and Sorting: Core application! Uses EL inspection like "X-ray" to rapidly and non-destructively identify cells with internal defects (e.g., micro-cracks, broken fingers, contamination, process flaws), automatically rejecting non-conforming products or classifying them by appearance grade.
Pre-module Production Matching: Ensures cells flowing to the module stringing process have highly consistent electrical performance (same grade) and qualified appearance (no severe defects). This is a key prerequisite for manufacturing efficient, high-power, and highly reliable solar modules.
Enhancing Module Power and Yield: Prevents low-efficiency cells from dragging down the power output of entire strings; eliminates defective cells with potential risks (e.g., micro-cracks), preventing them from forming hotspots in modules, reducing module failure risk, and improving long-term reliability.
Enabling Automated Production Lines: As a key piece of equipment at the end of cell manufacturing, it integrates loading/unloading, EL inspection, IV testing, and automatic sorting functions, achieving full automation from testing to sorting and significantly improving production efficiency.
Reducing Production Costs: Reduces the need for manual inspection and sorting, saving labor costs; automated operation minimizes cell breakage during handling; precise grading optimizes cell value, maximizing module output benefits.
