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Inline Zehntner Glossmeters

ZOL 1150

Tailored Industrial Gloss Measuring System

  • Inline
  • Automized
  • Fast and Precise


In-line quality control in production / Coatings, plastics and related materials / High gloss (20°), Medium gloss (60°), Low gloss (85°)

Automized gloss-measuring system for industrial inline quality control. Contactless measurement of all gloss ranges from matt to high gloss up to 2‘000 GU.
Continuous recording of the gloss values with a big measurement area is optimized for inline quality control in industrial production.
Great handling
Unique automatic in-situ calibration simplifies the handling and minimizes holding times significantly Automatic measuring distance correction ensures precise and contactless measurements.
Online monitoring of gloss and glosshaze during the production with up to 1‘000 measurements per second. Swiss quality ensures maximum accuracy.

SWISS MADE_horizontal lockup.svg
ZOL 1150 Tech Specs
Tech Specs
20°, 60°, 85° (depending on the version)

Measuring accuracy
0 - 199.9 GU: ≈0.2 GU, 0 - 1999 GU: ≈2 GU*

Measuring area
20°: 22 mm x 20 mm (0.87” x 0.79”)
60°: 29 mm x 14 mm (1.14” x 0.55”)
85°: 114 mm x 11 mm (4.49” x 0.43”)


Analog output
0-10 V, 0-20 mA or 4-20 mA

Light source

Power supply
24 VDC, ±10%

Power consumption
max. 18 W

Operating Temperature
-10°C to + 50°C (12 °F to 122 °F)

Measuring distance to material Measuring position
20°/60°: 10 mm (0.39”)
85°: 2.7 mm (0.11”)

Dimensions measuring head
20°/60°: 339 mm x 142 mm x 243 mm
20°/60°: 13.35” x 5.59” x 9.57”
85°: 339 mm x 142 mm x 250 mm
85°: 13.35“ x 5.59“ x 9.84“
Standards & Guidelines


  • Arrow, click names to download Standards & Guidelines ASTM D2457
  • Arrow, click names to download Standards & Guidelines ASTM D523
  • Arrow, click names to download Standards & Guidelines BS 3900-D6
  • Arrow, click names to download Standards & Guidelines DIN EN ISO2813
  • Arrow, click names to download Standards & Guidelines ISO 2813
  • Arrow, click names to download Standards & Guidelines JIS Z 8741

What is specular reflection or specular gloss?

A specular reflection or gloss is what you get from a polished surface or mirror. It is clear, and you can see "through" the mirror. A diffuse reflection is what you get from a white wall. The light is bounced off it, but...

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What is a gloss measurement angle?

Measurement angle refers to the angle between the incident light on a surface and the line perpendicular to the surface at the point of incidence. In specular reflection the incident and reflected angle are...

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What difference in gloss units is visible to the human eye?

There are no distinct differences in gloss units for the human eye to point out between the two samples.

The detectable differences depend on the gloss level of the sample e.g. 3.0 GU difference measured on a very matte...

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How is gloss measured?

Gloss is the opti­cal proper­ty of a sur­face to reflect light into the specu­lar direction, an important appear­ance factor. The visual impres­sion of gloss is depen­dent on the individual per­ception, there­fore...

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Why use a glossmeter?

A glossmeter is a precision measurement instrument. In order to determine the gloss of a surface, the glossmeter projects a beam of light at a fixed intensity and angle onto a surface and measures the amount of reflected...

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