- PV-Station-Solutions
- PV-Panel-Testing-Solutions
- Silicon-Ingot-Testing-Solutions
Portable Daylight EL Tester SC-DEL-Portable is mainly used for EL inspection of photovoltaic power plants and solar panels. It is powerful, portable, and can operate on sunny/cloudy days and day/night, with high work efficiency, safety and reliability. It can detect various defects such as cracks, broken grid, fragments, broken pieces, sintering, cold solder joints, over-etching, low-efficiency cells, mixed grades, etc.
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Power plant inspection
Laboratory testing
Incoming module inspection
Outdoor module testingConduct precise and comprehensive quality inspection and performance evaluation of various photovoltaic modules in a laboratory environment. Simulate different environmental conditions to deeply detect potential defects in modules, providing reliable data support for design optimization and quality control.
Comprehensive inspection before warehousing of various photovoltaic incoming modules purchased by enterprises, quickly identifying defects such as cracks, broken grid, fragments, etc., and promptly eliminating unqualified products, avoiding subsequent safety hazards or performance non-compliance caused by incoming material quality.
Meets the inspection needs of different types of power plants such as centralized and distributed. It can perform comprehensive inspection in complex environments such as deserts, plateaus, roofs, hills, and at different times such as sunny, cloudy, and night, providing accurate basis for power plant maintenance.
Adapts to various complex natural environments, monitoring the performance changes and defect development of modules under different lighting, temperature, and humidity conditions in real outdoor conditions, providing authentic and effective data for outdoor application research and durability testing.
Can operate at different times such as night, cloudy, and sunny.
Includes severely damaged modules that cannot be powered on.
Mountains, plateaus, roofs, greenhouses, etc.
Meet personalized needs.
Automatic defect recognition.
Can adapt to various panel types.
Traditional EL can only be performed at night; Daylight EL enables all-weather inspection at night, cloudy, and sunny, allowing flexible scheduling and shortening inspection cycles.
Effectively resists strong daylight interference, enabling accurate detection of module defects even under direct sunlight on sunny days.
Covers severely damaged modules that cannot be powered on, compatible with monocrystalline modules (PREC, TOPCON, BC, N-type, etc.) and polycrystalline modules.
Significantly reduces costs of equipment transportation, deployment, inspection environment setup, and labor, improving economy and efficiency.
Avoids nighttime operations (in remote areas where wild animals or low temperatures may be encountered), ensuring the safety of inspection personnel.
| Parameter | Specification |
|---|---|
| Model | SC-DEL-Portable |
| Infrared Pixels | 5 megapixels |
| Lens Options | 8mm/16mm/25mm optional |
| Detection Cycle | 1ms~10000ms (1ms at night, 10000ms for polycrystalline under high irradiance during the day,<1000ms for others) |
| Detectable Defect Types | Cracks, broken grid, fragments, broken pieces, sintering, cold solder, over-etching, low-efficiency cells, mixed grades |
| Control Method | Wired/Wireless |
| Detection Accuracy | Crack width > 50μm |
| Imaging Accuracy | > 0.1mm/pixel |
| Focus Mode | Full autofocus |
| Number of Modules per Test | 2 modules |
| Test Stand | 2.6m carbon fiber stand |
| Inspection Time | Below 400 irradiance |
| Focus Distance | 2~10 meters |
| Test Platform | Windows |
| Wireless Transmission Module | High-speed wireless transmission module |
| Constant Current | 0~15A adjustable, accuracy ±1% |
| Constant Voltage | 0~60V adjustable, accuracy ±1% |
| Power | 700W |
| Current Stabilization Module | Constant current control, current/voltage stable regardless of battery level |
| Power Control | 20m wireless/wired remote control |
| Number of Modules Inspected per Charge | 800 at night, 100~600 during the day (100 under high irradiance) |
| Current Adjustment | Adaptive |
| Power Protection | Reverse current, overload, leakage, electrostatic, overheat protection |
| Computer | Tablet PC, integrated computer |
| Data Storage | 100,000 images |
| Inspection Objects | Incoming modules before installation / power plant arrival inspection; installed modules (distributed/centralized power plants); monocrystalline modules (PREC, TOPCON, BC, N-type, etc.); polycrystalline modules |
| Power Plant Environment | Desert, plateau, roof, hills, slopes, factory buildings, snow fields, greenhouses, agrivoltaic, fishing-solar, wind-solar hybrid, etc. |
| Device Weight | 5kg |
| Operating Temperature | -30℃~50℃ |
| Relative Humidity | ≤85%RH |
| Scene Description | Scene Image | Daylight EL/PL Image |
|---|---|---|
| Centralized power plant, sunny, 26℃, 10:00, altitude 3000 (BC panel, glass surface broken) |  |  |
| Centralized power plant, cloudy, 22℃, 15:00, altitude 3000 (TOPCON panel) |  |  |
| Centralized power plant roof, direct sunlight, 25℃, 13:00, altitude 3000 (N-type panel, two strings failed, cannot be powered for EL) |  |  |
| Distributed power plant rooftop, direct sunlight, 25℃, 13:00, altitude 3000 |  |  |
| Distributed power plant rooftop, direct sunlight, 31℃, 17:00, altitude 100 (shooting with sunlight, no power needed) |  |  |
| Outdoor incoming inspection, cloudy light rain, 18℃, 15:00, altitude 400 |  |  |
| Indoor laboratory module inspection, indoor simulated sunlight (irradiance 500), 10℃, 10:00, altitude 50 |  |  |
All-weather inspection: can operate at night, cloudy, and sunny, no need to wait for specific time periods.
Strong light adaptability: accurate detection even under strong daylight.
Wide detection range: covers severely damaged modules that cannot be powered on, compatible with multiple battery panel types.
Convenient operation: portable design greatly reduces inspection costs.
Safety assurance: avoids risks of nighttime field operations.
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