Customized Module IV Tester

The Customized Module IV Tester is a device specifically designed and optimized according to users' specific testing requirements (such as special module dimensions, specific testing standards, higher accuracy, or integrated production line needs). It can accurately capture and analyze the current-voltage (IV) characteristic curve of photovoltaic modules or other electronic components, used to evaluate their key performance parameters (such as maximum power point, open-circuit voltage, short-circuit current, fill factor, etc.) and quality status.

Product Features

• Customization Capability: Exclusive optimized design for special dimensions, specific standards (e.g., new IEC standards), special environments (e.g., integration with high/low temperature chambers), or production line cycle times.

• Measurement Performance: Emphasizes high accuracy (low error), high stability (good repeatability), and strong anti-interference capability, enabling the capture of subtle IV curve variations.

• Analysis Function: Not only measures the curve but, more importantly, automatically, quickly, and accurately extracts and calculates all key performance parameters (e.g., Pmax, Voc, Isc, FF, Rs, Rsh, etc.) from the curve, and can perform preliminary quality judgments based on this (e.g., hidden cracks, hot spots, degradation, etc.).

• Integration & Intelligence: Emphasizes that the device is easy to integrate into automated production lines (e.g., communication with loading/unloading robots, barcode systems) and is equipped with powerful software for data management, in-depth analysis, and report customization, providing an intuitive and user-friendly operation experience.

Technical Parameters

Product Applications

• 1. Production Line Full Inspection and Sorting: Performs 100% online power testing on each product in the module manufacturing process, enabling precise quality sorting (Grade A/B/C) based on parameters such as maximum power point (Pmax) and open-circuit voltage (Voc), ensuring factory output modules meet the ±3% power tolerance requirement. Simultaneously provides real-time feedback on welding or lamination defects through IV curve anomalies (e.g., steps, low fill factor).

• 2. Laboratory R&D and Certification: Used for ultimate efficiency verification of new cell technologies (HJT/perovskite, etc.), and quantitative analysis of performance degradation after reliability tests per IEC 61215 standards (such as damp heat cycling, PID aging), providing critical data support for technology iteration and product certification.

• 3. Power Plant Acceptance and Maintenance: Conducts sampling inspections of incoming module power during power plant construction (avoiding over 10% overstatement risks). During operation and maintenance, locates faults like hot spots and diode failures by correlating abnormal IV curves (multi-peak/slope) with infrared thermal imaging, and regularly assesses whether the module's average annual degradation rate exceeds the 0.8% safety threshold.

• 4. Decommissioned Module Recycling Assessment: Quickly tests the residual power generation capacity of second-hand modules (reaching 70%~85% of initial power), filters out modules suitable for refurbishment to prevent PID-degraded products from entering the market, and guides the reuse of high-power modules as whole units or the disassembly and recycling of silicon material/silver paste from low-power modules, maximizing resource value.

Precautions

• 1. Strictly Adhere to Light Source Safety Regulations: The intense light pulse emitted by the device has high energy and extreme brightness. Never look directly at the light source or open the test chamber door during operation.

• 2. Ensure Proper Grounding and Electrical Isolation: The device involves high voltage and high current output. It must be reliably grounded, and the power supply must meet specifications. Regularly inspect cable insulation.

• 3. Precisely Control Test Environment Temperature and Humidity: Module performance is significantly affected by temperature. Pre-heat/pre-cool the module sufficiently to the set temperature (typically 25°C±1°C) before testing, and precisely monitor the module surface temperature in real-time (using calibrated contact sensors). Ambient humidity must be controlled within the specified range (typically <60% RH) to prevent condensation or high-voltage discharge risks.

• 4. Correct Use of Test Fixtures: Regularly clean test fixtures to prevent oxidation and avoid measurement errors or local overheating damaging the module due to poor contact.

• 5. Regular Calibration and Maintenance of Core Components: Light source intensity (irradiance uniformity, stability), current/voltage sensor accuracy, and temperature probes are core metrology units and must be calibrated regularly according to standards (e.g., IEC 60904 series). Additionally, maintain optical components (clean lenses/reflectors) and mechanical movement mechanisms to ensure stable and reliable equipment status.

• 6. Standardize Operating Procedures and Parameter Settings: Accurately input module parameters (e.g., nominal power, type) before testing. Carefully set pulse width and voltage intensity to avoid irreversible thermal damage to the module from excessively long/strong pulses (especially for thin or temperature-sensitive materials). Allow the module to cool sufficiently after testing before proceeding to the next test or removal. When handling abnormal data, investigate environmental, contact, and equipment status factors; never arbitrarily tamper with or ignore abnormal results.