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Model #: erx56


An inline non-contact multi-angle spectrophotometer for the measurement of multi silver layers on coated glass. The ERX56 measures the production directly on production machine or in the laboratory. A spectral curve provides detailed reflectance information.

ERX56 Inline Spectrophotometer for color consistency from multiple viewing angles

Multiple silver layers on glass panes add functionality to architectural fronts and are state of the art in architectural design. Low-E™ glass or solar protection is used all over the world to reduce costs for heating or cooling houses or other structures. However, glass is a non-scattering product which makes it a challenge to measure.

The ERX56 measures non-scattering products such as glass using three geometries simultaneously at +15°: -15°, +45°: -45° and +60°: -60°. The ±15° measurement gives the same readings as in the laboratory with a sphere geometry measurement. The ±45° and the ±60° measurements show color change from different observer angles. The ERX56 measures from 330 nm to 1,000 nm with 1 nm optical resolution.

When used with ESWin QC software, the ERX56 enables accurate color adjustments that improve manufacturing output and reduce waste due to color drift.


  • Functional layers such as Low-E™ or solar protection can be accurately measured and quantified for consistency and optimum functionality.
  • A spectral range from 330 nm to 1000 nm with 1 nm optical resolution delivers best-in-class measurement results.
  • Simultaneously measures non-scattering products such as glass using three geometries at +15°: -15°, +45°: -45° and +60°: -60° to measure color changes from different observer angles.
  • External calibration is only necessary every 4 weeks for maximum instrument uptime.

The ERX56 delivers excellent short-term stability due to its use of real dual beam measurement, and its automatic wavelength calibration ensures exceptional measurement accuracy and long-term stability. The ERX56 is the must-have color measurement instrument for measuring and controlling color in the manufacture of non-scattering products where color control for different viewing angles is critical.

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Short Term Repeatability - White dL*, da*, db* < 0.03
Measurement Geometry 15°/15° 45°/45° 60°/60°
Measurement Time flash
Measurement Working Distance 10mm
Spectral Range 1nm
Spectral Interval 330-730

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