Why measure gloss?
Gloss is an aspect of the visual perception of objects that is as important as colour when considering the psychological impact of products on a
Concrete Clarity Meter (CCM)
- Industry standard Concrete Clarity Meter
- Measures Gloss, Haze and DOI of polished concrete
- 20/60˚ Glossmeter for high gloss finishes
- Compatible with concrete polishing standards
$4,390
The Concrete Clarity Meter (CCM)
The Rhopoint IQ Concrete Clarity Meter measures Reflected Image Quality; it is the only hand held instrument that profiles how light is reflected from a surface. Glossmeters are usually used to measure the shininess of a surface but are not sensitive to other effects which reduce appearance quality.
The Concrete Clarity Meter (CCM) can measure
- 20/60° Gloss
- RSPEC
- Reflectance haze
- Reflected image quality (RIQ)
- Distinctness of Image (DOI)
Unlike a standard glossmeter the IQ Concrete Clarity Meter has the unique capability of measuring and detecting
quality problems caused by microscopic texture in the surface that cause haze and orange-peel effects which lead to poor Distinctness of Image (DOI).
These factors can seriously affect the visual impact and reflective quality of many coated, painted and polished
surfaces. By measuring the quality of the reflected image it accurately profiles how light is reflected from a surface.
Distinctness of Image (DOI)
A measure of how clearly a reflected image will appear in a reflective surface and is used to quantify effects such as orange peel and surface waviness.
Orange peel dramatically reduces appearance quality without affecting gloss readings. The Rhopoint IQ Concrete Clarity Meter with DOI measurement can quantify the differences.
Haze is a common problem associated with coatings and polished materials. Surfaces with haze have a “milky” finish with a “shallow” reflected image. This important characteristic is directly measured with the Concrete Clarity Meter.
Images courtesy of Curviello Concrete
Reflectance Haze
An optical effect caused by microscopic texture or residue on a surface.
Visible Symptoms: A milky finish is apparent on
the surface with a loss of reflected contrast. Halos and patterns can be seen around reflections of high intensity light sources.
Causes: Resin transfer, lack of refinement, burnish
and polishing marks, fine scratches, poor cleanliness/surface residue.
Distinctness of Image (DOI) Gloss
DOI is the sharpness of images of objects produced by reflection at a polished surface, sometimes called image clarity.
Measurement by Image Clarity Meter: The DOI, Image Clarity Value, obtained from this test method, range from 0 to 100 with a value of 100 representing perfect DOI (image clarity).
Haze
Haze is the cloudiness or milky appearance of images of objects produced by reflection in a polished surface.
Measurement by Glossmeter (ASTM D4039): The Haze Index, obtained from this test method, is computed using the numeric difference between the value of specular gloss at 60° and the value of specular gloss at 20°.
Measurements for Compliance
The Image Clarity Meter and Glossmeter must be calibrated.
The minimum number of tests distributed across the polished surface should be three for areas up to 1000ft² and one additional test for each 1000ft² or fraction thereof. This applies to both the Image Clarity Value and Haze Index.
The mean (average) values of the test results should be used to evaluate compliance with the chart.
Features
Easy Batching
User definable batch names and batch sizes for quicker and more efficient reporting.
Software-free Rapid Data Transfer
USB connection to a computer instantly recognises the device as a drive location which facilitates the quick transfer of files using Windows File Explorer or similar programs.
Direct Data Input via Bluetooth
Instantly transmit measured readings directly to programs such as Microsoft Excel on your computer, tablet or smart phone to greatly simplify the reporting process.
Operation
- Full colour easy to read screen
- Adjustable brightness
- 6 button touch sensitive interface
Construction
- All aluminium construction – enclosure, optics, standard holder
- Integrated calibration holder with in-position
detector for error-free calibration
Specifications
Measurement
| 20° Gloss | ||||
|---|---|---|---|---|
| Range | 0 - 100 GU | 100 - 2000 GU | ||
| Repeatability | 0.2 GU | 0.2% | ||
| Reproducibility | 0.5 GU | 0.5% * | ||
| Resolution | 0.1 GU | |||
| Measurement Area | 6mm x 6.4mm | |||
| Standards | ISO 2813 | ASTM D523 | ISO 7668 | ASTM D2457 | DIN 67530 | JIS Z 8741 | |||
| 60° Gloss | ||||||
|---|---|---|---|---|---|---|
| Range | 0 - 10 GU | 10 - 100 GU | 100 - 1000 GU | |||
| Repeatability | 0.1 GU | 0.2 GU | 0.2% | |||
| Reproducibility | 0.2 GU | 0.5 GU | 0.5% * | |||
| Resolution | 0.1 GU | |||||
| Measurement Area | 6mm x 12mm | |||||
| Standards | ISO 2813 | ASTM D523 | ISO 7668 | ASTM D2457 | DIN 67530 | JIS Z 8741 | |||||
* A mirror gloss calibration standard is required to achieve this reproducibility
| Haze | ||
|---|---|---|
| Range | 0 - 500 Log HU | |
| Repeatability | 1 Log HU | |
| Reproducibility | 10 Log HU | |
| Resolution | 0.1 Log HU | |
| Measurement Area | 6mm x 6.4mm | |
| Standards | ASTM E430 | ASTM D4039 | ISO 13803 | |
| RSpec | DOI | RIQ | |||
|---|---|---|---|---|---|
| Range | 0 - 2000 GU | 0 - 100 GU | 0 - 100 GU | ||
| Repeatability | 0.2% | 0.2 Log HU | 0.2 Log HU | ||
| Reproducibility | 0.5% | 0.5 Log HU | 0.5 Log HU | ||
| Resolution | 0.1 | ||||
| Measurement Area | 6mm x 6.4mm | ||||
| Standards | Rhopoint | ASTM E430 | Rhopoint | ||
Instrument
| Instrument Information | ||
|---|---|---|
| Battery Type | Rechargeable lithium ion | |
| Operation Time | 17+ hours | |
| Readings per Charge | 20,000+ | |
| Memory | 8MB, 2,000 readings | |
| Operating Temperature | 15°C - 40°C (60°F - 104°F) | |
| Operating Humidty | Up to 85% (non condensing) | |
| Commodity Code | 9027 5000 | |
| Dimension & Weights | ||
|---|---|---|
| Dimensions | 140mm (H) x 50mm (W) x 65mm (D) | |
| Instrument Weight | 390g | |
| Packed Weight | 1.75kg | |
| Packed Dimensions | 360mm (H) x 290mm (W) x 140mm (D) | |
| Included Accessories | ||
|---|---|---|
| Certificates: | Instrument calibration certificate Tile calibration certificate | |
| Cables: | USB data & mains cable Wrsit strap | |
| USB Containing: | Instruction manual Bluetooth data app Example Excel spreadsheets Novo-Gloss Multi Gauge software Instructional videos | |
| Calibration Tile | High gloss calibration tile with cleaning cloth | |
| Sample Positioning Templates | ||
| Quick Start Guide | ||
| Order Codes | ||
|---|---|---|
| Rhopoint IQ Concrete Clarity Meter | A6000-013 CCM | |
To ensure accurate and reliable results, Rhopoint Novo-Gloss Instruments are supplied with standards calibrated and certified according to ISO 17025 UKAS.
Free extended warranty
Free extended 2 year warranty: Requires registration at www.rhopointinstruments.com/help-services/forms-feedback/instrument-registration/ within 28 days of purchase. Without registration, 1 year standard warranty applies.
Free light source warranty
Guaranteed for the life of the instrument.
Calibration and service
Fast and economic service via our global network of accredited calibration and service centres. Please visit www.rhopointinstruments.com/help-services/calibration-servicing/ for detailed information.
Downloads
Datasheets
Manuals
Application Notes & White Papers
Answers to common questions about our instruments and measurements
What glossmeter do I need?
Identify the surface that you wish to measure. Is it a flat surface? If so, it can be measured with a traditonal glossmeter. Curved surfaces
What is RSpec?
RSpec is the peak reflectance measured over a very narrow angular band in the specular direction (+/-) 0.0991º. RSpec is very sensitive to any texture
