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Solar Panel EL Defect Tester with Visual Inspecting - Solar Panel Production Line



Solar Panel EL Defect Tester is used to test the solar cell crack,breakage, black spot,mixed wafers,process defect,cold solder Joint phenomenon.
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Solar Panel EL Defect Tester with Visual Inspecting - Solar Panel Production Line

Machine Function

Used in testing the solar module Crack,breakage, Black Spot,Mixed Wafers,Process Defect,Cold Solder Joint phenomenon

Technical Parameter

Equipment performance



Testing cycle (s)


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


EL tester

1) Automatic module barcode recognition

2) Monocrystalline auxiliary diagnosis

3) MES interfacing

4) Query

5) Other functions

Image storage

Save the EL pictures in the name of the module barcode and upload to MES system

Detail picture

Solar Panel EL Defect Tester

 EL Defect Tester

About US

Ooitech, One-stop Solution For Solar Module Making Machines.

Has The Following Required Machinery And Accessories

Solar Panel Production Line

Ooitech “Turnkey Solution” Includes: Factory Construction, Facility Layout, Raw Materials BOM guidance, Production Procedure assitance, Solar Power Station installation technical support Etc.

Ooitech focus on:

Supply 10MW-500MW Solar Module Making Machines

Update the traditional PV line to newest MBB solar panel production line.

Main machinery

Solar Cell Tabber Stringer Machine

Automatic Solder Bussing Machine

Automatic Laminator

High Speed Automatic Layup Station

Automatic Framing Machine

Electroluminescence Test

Solar Simulator Or IV Tester

Solar Cell Laser Cutting Machine

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Get May 2024 Production and Raw Material Price

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Our Location

Building 1, Zixin Industrial Park, Yangguang Ave,Jiangxia Economic Development Zone, Wuhan of China

Call us on

(+86) 185-7164-5990 (click to talk)
(Phone & Wechat)

Send message


Working Hours

Mon-Fri: 8.30AM-5.30PM (UTC+8)

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