Auniontech AUT OS-300 Online Spectrophotometric Colorimeter
| Brand | Auniontech |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | AUT OS-300 |
| Pricing | Upon Request |
Overview
The Auniontech AUT OS-300 Online Spectrophotometric Colorimeter is an industrial-grade, non-contact color measurement system engineered for real-time spectral reflectance acquisition under d/8° geometry (diffuse illumination, 8° viewing angle) in accordance with ISO 7724-1, CIE No. 15, and ASTM E308. It operates by illuminating the sample surface via a stabilized pulsed light source coupled with an integrating sphere, collecting reflected radiation through a high-efficiency optical train, and dispersing the signal using a custom-designed holographic concave grating with aberration correction. The resulting spectrum is captured simultaneously across dual optical paths—ensuring inherent compensation for thermal drift, voltage fluctuation, and lamp aging—thereby delivering metrologically traceable CIE XYZ tristimulus values, CIELAB coordinates (L*, a*, b*), ΔE*ab color difference metrics, and additional chromaticity indices (e.g., CMC, DIN99, DE2000) with high inter-instrument agreement.
Key Features
- Real-time measurement cycle ≤ 500 ms—optimized for high-speed production line integration
- CIELAB color resolution of 0.01 ΔE*ab, enabling detection of sub-threshold chromatic deviations
- Average inter-instrument agreement < 0.3 ΔE*ab (measured on BCRA Series II tiles per ISO 13655)
- Pulsed illumination architecture with synchronous data acquisition—zero heat buildup, low power consumption, and 24/7 operational reliability
- Fiber-optic relay interface allows flexible sensor head placement up to 5 m from main electronics unit
- Uniform annular illumination and proprietary aperture design ensure repeatable, geometry-compliant measurements per CIE 15:2018
- Double-beam optical configuration mitigates long-term signal drift caused by environmental or component aging effects
- Space-qualified optical simulation and full-system ray tracing validation applied during design phase
Sample Compatibility & Compliance
The AUT OS-300 accommodates flat, curved, textured, and semi-gloss surfaces across diverse substrates—including textiles, injection-molded plastics, coated metals, printed films, ceramic glazes, and pharmaceutical tablets—without physical contact or surface alteration. Its optical path is calibrated against NIST-traceable spectral reflectance standards (e.g., BaSO₄, pressed PTFE) and supports routine verification per ISO 17025–accredited laboratory procedures. The instrument complies with electromagnetic compatibility (EMC) requirements per IEC 61326-1, safety standards per IEC 61010-1, and is suitable for deployment in GLP/GMP-regulated environments where audit-ready calibration logs and measurement traceability are required.
Software & Data Management
The system ships with Auniontech’s ColorLink™ v3.x software suite, supporting Windows-based host PCs and offering programmable API access (DLL, TCP/IP, Modbus TCP) for seamless PLC and MES integration. All raw spectral data (360–780 nm, 10 nm resolution), computed colorimetric outputs, pass/fail thresholds, and timestamped measurement histories are stored in vendor-neutral CSV and XML formats. Full audit trail functionality—including user login tracking, parameter change logging, and electronic signature support—is implemented in alignment with FDA 21 CFR Part 11 requirements for regulated industries. Calibration certificates include uncertainty budgets calculated per GUM (JCGM 100:2008).
Applications
The AUT OS-300 serves as a primary color verification node in closed-loop quality control systems across multiple sectors: real-time batch monitoring of pigment dispersion in automotive paint lines; consistency validation of dyed fabrics prior to cutting; color matching verification for OLED display modules during panel assembly; spectral stability assessment of UV-curable coatings in medical device manufacturing; and quantitative hue evaluation of food-grade packaging films under varying ambient lighting conditions. Its robustness enables operation in ambient temperatures from 10–40 °C and relative humidity up to 80% non-condensing—making it deployable directly on shop floors without climate-controlled enclosures.
FAQ
What illumination geometry does the AUT OS-300 use?
It implements d/8° geometry with integrated sphere illumination and 8° viewing angle, conforming to ISO/CIE standards for diffuse reflectance measurement.
Is the instrument suitable for measuring translucent or backlit materials?
No—it is optimized for opaque and semi-opaque surface reflectance only; transmission mode is not supported.
Can the sensor head be mounted in-line on a moving conveyor?
Yes—its compact form factor, fiber-optic coupling, and millisecond-level trigger response allow synchronization with encoder signals for position-resolved color mapping.
Does the system support automatic recalibration during operation?
Yes—via integrated white reference tile and scheduled self-check routines triggered by time interval or measurement count thresholds.
What spectral range and resolution does the grating provide?
360–780 nm nominal range with 10 nm optical bandwidth and < 2% stray light level across the visible band.
