Novo Gloss Trigloss Gloss Meter 20/60/85˚

Description

The Novo-Gloss 20/60/85° gloss meter is designed to meet the measurement criteria for most gloss measuring applications.

Small, lightweight and durable the gloss meter can be used in production and laboratory environments. The high specifications, including statistical analysis, graphical analysis and software-free PC down load facility make it the ideal gloss meter for matt to mirror surface finishes

Measured parameters:

Gloss measurement for all surface finishes:

  • 20⁰ - High gloss
  • 60⁰ - Medium gloss
  • 85⁰ - Low gloss

Haze measurement to ASTM E430

  • Reflectance haze measurement with compensation mode to provide consistent readings of metallics and speciality pigments

Gloss meter features

  • Fast measurement, single button push measures all parameters
  • On-board statistics with graphical trend analysis and reporting.
  • Automatic calibration with tile validation
  • Date and time stamped results
  • Easy Batching - User definable batch names and batch sizes for quicker and more efficient reporting
  • Software-free data transfer
  • Direct data input via Bluetooth - instantly transmit measured readings directly to programs such as Microsoft Excel
  • Auto-ranging, measures matt to mirror finishes
  • Pass / fail for easy identification of non-conformances
  • Compatible with all major international standards
  • Extended two year warranty
  • Lifetime lightsource guarantee

Novo Gloss trigloss gloss meter for all surfaces

Which gloss meter angle should I use for my application?

 ISO 2813 and ASTM D523 (the most commonly used standards) describe three measurement angles of gloss using a gloss meter.

Gloss is measured in gloss units (GU) and is traceable to reference standards held at NIST.

High Gloss: 20°
The acute measurement angle of 20° gives improved resolution for high gloss surfaces. Surfaces that measure 70GU and above at the standard angle of 60° are often measured with this geometry.
The 20° angle is more sensitive to haze effects that affect the appearance of a surface.

Universal Measurement Angle: 60°
All gloss levels can be measured using the standard measurement angle of 60°. This is used as the reference angle with the complimentary angles of 85° and 20° often used for low and high gloss levels respectively.

Low Gloss: 85°
For improved resolution of low gloss a grazing angle of 85° is used to measure the surface. This angle is recommended for surfaces which measure less than 10GU when measured at 60º.
This angle also has a larger measurement spot which will average out differences in the gloss of textured or slightly uneven surfaces.

How do I use a glossmeter to measure gloss?

Why measure Haze?

 Haze can be described as near specular reflection. It is caused by a microscopic surface structure which slightly changes the direction of a reflected light causing a bloom adjacent to the specular (gloss) angle. The surface has less reflective contrast and a shallow milky effect. In the coatings industry, this microscopic surface texture is often due to poorly dispersed raw materials, incompatible raw materials or oxidisation and weathering.

For polished metal surfaces haze is often associated with polishing marks or chemical residue.
quantify haze to ASTM E430 with the Novo Gloss glossmeter

Reflection Haze

Reflection haze is an optical phenomenon usually associated with high gloss surfaces.
It is a common surface fault that reduces appearance quality.
A hazy surface has a visibly shallower reflection with a milky finish and halos appear around reflections of strong light sources.

No Haze, deep reflection

No Haze, deep reflection

High Haze, ‘shallow’ finish

High Haze, ‘shallow’ finish

A high gloss finish with haze exhibits a milky finish with low reflective contrast- reflected highlights and lowlights are less pronounced.

Low Haze

Low Haze

Higher Haze

Higher Haze

On surfaces with haze, halos are visible around the reflections of strong light sources.

Causes of Haze

 Coating & Raw Materials

• Dispersion
• Pigment properties
• Particle size
• Binder compatibility
• Influence and migration of additives
• Resin types and quality
Curing
• Drying conditions
• Cure temperature
Post Coating
• Polishing marks
• Cleanliness
• Ageing and oxidisation
Haze- Often visible as milky finish on high gloss surfaces.
measuring polishing marks with the Novo-Gloss gloss meter

The Ultimate Gloss Meter - Features

Measurement
Fast measurement of all parameters. Full on-board statistics with graphical trend analysis and reporting.

20/60/85 tri gloss gloss meter measuring screen
Simultaneous measurement of all parameters, results are date and
time stamped.

Gloss meter graph
Graphical reporting for quick trend analysis.
Novo-Gloss gloss meter stats
Displays full statistics for the number of readings in the current batch.

gloss meter pass fail
Pass / fail parameters can be defined for instant identification of non-conformances.

Easy Batching
User definable batch names and batch sizes for quicker and more efficient reporting.
gloss meter batching
Rapid data transfer
Software-free data transfer
USB connection to PC instantly recognises the device as a drive location which facilitates the quick transfer of files using Windows Explorer or similar.

To measure the orange peel (DOI) of a the surface in addition to the above parameters, please see the Rhopoint IQ

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