Spi-EL™ Electroluminescence Solar Module Tester (In-Line)
In-Line Inspection System
for Solar Modules
The SPI-EL™ In-line series of solar module testers uses electro-
luminescence (EL) measurements to identify microcracks and other invisible defects in modules. The testers utilize cooled near-infrared (NIR) CMOS and CCD camera technology to image each solar cell with resolutions starting from 24 Mpixel for Manual up to 72 Mpixel for Fully Automatic Image Processing software.
Modules are easily loaded/unloaded using standard conveyors. With image capture times as fast as 35 seconds and total test times of less than 55 seconds (including loading/unloading), inline EL inspection can satisfy the module line speed required by todays high volume production.
Systems incorporate a user-friendly computer interface for easy operation and offer the option of automatic electrical connection to the module to allow fully automated operation.