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EL_Basic inspection systems for manually operated quality control

New in 2016: Increased image resolutions

Basic EL inspection systems are designed to be used in manually operated production lines or as off-line Systems. The inspection may take place before or after the lamination process. The high contrast El images are recorded automatically and controlled visually on screen by an operator.

  • flexible adjustment of module sizes, from 1000x645mm up to 2000x1050mm
  • feed in of modules via roller table, short edge leading
  • high image resolution of 6.1mp or optional 9.7mp
  • perfect image quality by the use of high-class NIR special-purpose cameras and NIR lenses
  • short cycle times, 3s inspection time
  • bar code scanner optional available


EL systems Basic are available in several standard variants

Machine design

The EL inspection system “Basic” by pi4 is flexible in its use – it can be integrated into a production line as well as employed as a lab system. Six stationary special IFR cameras deliver optimum image quality for visual inspection by the operator.


  • absolutely light-tight machine construction for optimum image quality
  • passively cooled special cameras for the best repeating accuracy
  • special EL power supply unit that also allows adjusting EL current and voltage via the software
  • using only high-end components of renowned manufacturers
  • quick and easy to adapt to modules of different sizes

Basic features of EL_Basic systems:

  • New in 2016: Increased resolution for improved image quality. Optionally 6.1mp or 0.78mp.
  • Completely lightproof test environment for El images with accentuated contrast.
  • Software controlled power supply unit.
  • Storage of all El images.
  • Bar code scanner available.


EL systems “Basic” by pi4 operate on the basis of the software platform pi4_control, which can be operated intuitively. The EL power supply unit and all parameters for image acquisition can be controlled via the software.


Inspection result in the operator’s view

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