Rhopoint - DOI (Orange Peel) Gloss & Haze - Rhopoint IQ (Goniophotometer) 20°/60°/85°: 马来西亚的首选 Obsnap Instruments Sdn Bhd

详情

DOI / RIQ Meter, (quantify orange peel)
Hazemeter (reflectance haze)
20/60/85˚ Glossmeter for all gloss finishes

Product Description

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

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