Full Automatic EL Tester for Solar Panel Production Line

• After-sales Service: on Line Assistance
• Warranty: One Year Warranty
• Requirement for Power Supply: AC220V 15A
• Requirements for Air Source: 0.6-0.8 MPa
• Testing Cycle: ≤20s
• Transport Package: Sea Freight
• Model NO.: OPT-M950B
• Specification: 2800*2260*1300mm
• Trademark: Ooitech
• Origin: China
• Production Capacity: 100 PCS/Per Year

Product Description

Website: https://www.ooitech.solar
Solar Panel EL Defect Tester Function:
Solar Panel EL Defect tester is used to test the manufactured solar modules for cell inherent defects, such as cell breakage , surface micro cracks, debris, bad soldering, and for instance to detect an inactive string inside a solar modules. EL imaging is becoming more and more important for quality testing of solar cells, as the defects can't be identified by visual or naked eye inspection.
It can be test before laminating and after laminating. So it will reduce the production cost and improve the panel quality.

Defects that can be found with an EL tester are:

1. Broken cells and micro-cracks in the cells.
2. Detection of busbar contact defects
3. Detection of missing or interrupted screen-printed fingers
4. Detection of mixed efficiency and foreign matter/Polution in the crystalline silicone
5. Short circuit in solar cells

 

[Product Configuration]

Subsystem	Configuration
Alignment system Three canvas conveyor belts for feeding Omni-directional (front, left and right) module alignment Aligning scope: Length (1,650-2,500 mm) x Width (992-1,400 mm)	Standard configuration
Imaging system SONY industrial camera 4 x 1920 x 1200 x 3w(EL)   4 x 5440 x 3648 x 3w(VI)       Imaging precision         0.5 mm/pixel    0.1 mm/pixel              Exposure time: 0.5-10s, adjustable  Four-camera three-imaging, automatic image mosaicing	Standard configuration
Power-up system Voltage-stabilized DC power supply DC60V/10A x 1 sets Applicable to the power-up for the bus bar of the module before the normal layer, the tooling of the junction box and the conventional double-glazed module	Standard configuration
Image processing Image display: Local zooming and barcode displaying Function selection: High and low current testing Image processing: Gain, gray scale, shear, rotate Query: Barcode query, date query Others: User defined	Standard configuration
Windows 10 operating system and 15 CPU	Standard configuration
Method of image mosaicing Automatic jointless mosaicing by software	Standard configuration

  

Equipment performance	Description	Remarks
Testing cycle (s)	≤20s
Testing range (mm)	Conventional modules, double-glazed modules, film-mounted modules and halved modules. 156 polycrystalline/monocrystalline 72-cell module: 1,956 * 992 * 40 mm (46 mm) 60-cell module: 1,650 * 992 * 40 mm (35 mm)	Universal for before and after the layer
Feeding method	Feeding by the long edge, conveying by the belt, adjustable conveying spacing.
Testing method	Upward perpendicular projection of four cameras and imaging by three movements of the modules.
Human-machine interface	Testing mode: For normal testing on the production line, as well as for monitoring and volume production statistics. Assembly line mode: For transmission on the assembly line, without EL testing. Commissioning mode: Individual control for each module of the equipment for commissioning and maintenance
Software	EL tester 1) Automatic module barcode recognition     2) MES interfacing      3) Query     4) Other functions VI 1)Automatic module barcode recognition 2)MES interfacing 3)Query 4)Other functions
Image storage	Save the EL pictures in the name of the module barcode and upload to MES system