Obsnap Instruments Sdn Bhd
29A, Jalan SS 15/4C, 47500 Subang Jaya, Selangor, Malaysia.
Rhopoint - DOI (Orange Peel) Gloss & Haze - Rhopoint IQ (Goniophotometer) 20กใ/60กใ/85กใ
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- DOI / RIQ Meter, (quantify orange peel)
- Hazemeter (reflectance haze)
- 20/60/85˚ Glossmeter for all gloss finishes
The Rhopoint IQ 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
Specifications:
GLOSS
20/60°* and 20/60/85°* versions availiable
| 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 0.1GU • Repeatability ±0.2% • Reproducibility ±0.5% (100-2000GU)
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
