The Rhopoint IQ Gloss Haze & DOI Meter quantifies surface quality problems that are invisible to a standard glossmeter and profiles how light is reflected from a surface.
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The Rhopoint IQ Gloss Haze & DOI Meter quantifies surface quality problems that are invisible to a standard glossmeter and profiles how light is reflected from a surface. The Rhopoint IQ instrument measures the following parameters in a single button push: 20/60/85° GLOSS • HAZE• REFLECTED IMAGE QUALITY (RIQ) • DISTINCTNESS OF IMAGE (DOI) • RSPEC Gloss: A measurement proportional to the amount of light reflected from a surface measured at 20° ( high gloss finishes) , 60° ( mid gloss finishes ) and 85° ( matt finishes)
Haze: Reflection haze is scattered light caused by micro texture and is measured adjacent to the main gloss component. Symptoms – A milky finish is seen on high gloss coatings, halos can be visible around reflections of bright light sources. Causes (coatings) – Dispersion problems, raw material incompatibilities, incorrect curing or stoving. Causes (other) – Cleanliness, ageing, oxidisation, scratching, polishing.
RIQ: RIQ is used to quantify effects such as orange peel and surface waviness. This new parameter gives higher resolution results compared to Distinctness of Image (DOI) measurement and better mimics human perception of surface texture, especially on high quality finishes such as automotive. Symptoms of Poor RIQ: Orange peel, brush marks,waviness or other structures visible on the surface. Reflected images are distorted. Causes – Application problems, incorrect coating flow, coating viscosity too high/low, sag or flow of coating before curing, incorrect particle size/distribution, overspray, improper flash/recoat time, inter coat compatibility, incorrect cure times and cure temperature.
DOI: A measure of how clearly a reflected image will appear in a reflective surface.
RSPEC: The peak gloss value over a very narrow angle.
Features
- Easy to read full colour screen with adjustable brightness
- 6 button touch sensitive interface
- Fully automatic calibration with tile detection and verification for error-free calibration
- Pocket sized instrument with integrated tile holder
- Pass / fail for easy identification of non-conformances
- Full onboard statistics (max, min, mean, S.D.)
- On-board trend analysis graphs
- Results batching with user definable names
- Direct data input via Bluetooth – This allows each reading to be instantly transmitted to any PC package such as Excel, Word, SPC programs etc.
- Software-free data transfer – USB download of results to PC without the need to install software
THE ULTIMATE GLOSSMETER UPGRADE
GLOSS
A measurement proportional to the amount of light reflected from a surface. Geometry: The correct measurement geometry should be used according to the sample finish – matt: 85°, mid gloss: 60°, high gloss: 20°.
RSPEC
The peak gloss measured over a very narrow angle. Usage: It is very sensitive to surface texture and can be used to identify subtle differences in smooth surfaces.
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: Poor dispersion, raw material incompatibility, additive migration, vehicle quality, stoving/drying/curing conditions, polishing marks, fine scratches, ageing, oxidisation, poor cleanliness/surface residue.
REFLECTANCE HAZE COMPENSATION
The instrument compensates for reflection from within the coating for highly reflective pigments, metallic coatings and speciality pigments, allowing the haze of any painted surface to be measured
REFLECTED IMAGE QUALITY (RIQ)
RIQ is used to quantify effects such as orange peel and surface waviness. This new parameter gives higher resolution results compared to Distinctness of Image (DOI) measurement and better mimics human perception of surface texture, especially on high quality finishes such as automotive. Symptoms of Poor RIQ: Orange peel, brush marks, waviness or other structures visible on the surface. Reflected images are distorted. Causes: Application problems, incorrect coating flow, coating viscosity too high/low, sag or flow of coating before curing, incorrect particle size/distribution, overspray, improper flash/recoat time, inter coat compatibility, incorrect cure times and cure temperature.
DISTINCTNESS OF IMAGE (DOI)
A measure of how clearly a reflected image will appear in a reflective surface.
| GLOSS | |
| Version | 20/60°* and 20/60/85°* |
| 20° | Improved accuracy and resolution on high gloss & metallic samples (>70GU when measured at 60°) |
| 60° | Universal angle – all gloss levels |
| 85° | Improved resolution for matt finishes (<10GU when measured at 60°) |
| Resolution 0.1GU • Repeatability ±0.2GU • Reproducibility ±0.5GU (0-100 GU) | |
| Resolution 0.GU • Repeatability ±0.2%• Reproducibility ±0.5% (100-2000) | |
| Measurement range | 20º: 0-2000GU |
| 60º: 0-1000GU | |
| 85º: 0-199GU | |
| Standards | ISO 2813, ISO 7668 |
| ASTM D523, ASTM D2457 | |
| DIN 67530 | |
| JIS 8741, JIS K 5600-4-7 | |
| *Verified performance on 20° angle for 20/60/85° | |
| RSPEC | |
| Peak Specular Reflectance: 20° ±0.09905° | |
| Measurement range: 0-2000GU | |
| HAZE | |
| Near Specular Reflectance measured at 17.2-19°, 21-22.8° | |
| Switchable between Haze Units (HU) and Log Haze Units (LogHU) | |
| Resolution 0.1HU • Repeatability ±0.5HU • Reproducibility ±1.5HU. | |
| STANDARDS, ASTM E430, ISO 13803 | |
| RIQ | |
| Resolution 0.1 • Repeatability ±0.2 • Reproducibility ±0.5 | |
| Measurement range: 0-100 | |
| DOI | |
| Resolution 0.1 • Repeatability ±0.2 • Reproducibility ±0.5 | |
| Measurement range: 0-100 | |
| STANDARD, ASTM E430 | |
| INSTRUMENT SPECIFICATIONS | |
| 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 | |
| Measurement | Single button push to measure all parameters |
| Fast measurement | |
| Results batching with user definable names | |
| Statistical Analysis | Max, min, mean, S.D. |
| All measured parameters | |
| Graphical Analysis | On board trend analysis |
| Gloss and IQ values | |
| Power | Rechargeable lithium ion |
| 17+ hours operation | |
| 20,000+ readings per charge | |
| Recharge Time | Mains charger: 4hrs |
| Memory | 8 MB = 999 readings |
| User defineable alphanumeric batching | |
| Data Transfer | Bluetooth |
| PC compatible | |
| USB connection, no software install required | |
| Measurement Area | 20°: 6mm x 6.4mm |
| 60°: 6mm x 12mm | |
| 85°: 4.4mm x 44mm | |
| Operating Temperature: 15 – 40 ° C (60 – 104 ° F) | |
| Humidity: Up to 85%, non condensing | |
| Dimensions & Weight | 65mm x 140mm x 50mm (H x W x D) |
| Packed weight: 1.75kg | |
| Packed dimensions: 180mm x 330mm x 280mm (H x W x D) | |
| Commodity code: 9027 5000 | |
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