HunterLab Aeros Chip Colorimeter
| Brand | HunterLab |
|---|---|
| Origin | USA |
| Model | Aeros Chip Colorimeter |
| Product Type | Color Difference Meter |
| Instrument Type | Benchtop |
| Optical Geometry | 0/45° Integrating Sphere |
| Light Source | Full-Spectrum LED (Cool White) |
| Spectral Range | 400–700 nm |
| Repeatability | ΔE*ab ≤ 0.03 (mean, CIE Lab, 10 measurements on uniform tile) |
Overview
The HunterLab Aeros Chip Colorimeter is a purpose-engineered benchtop color measurement system designed specifically for challenging, non-uniform, and geometrically irregular samples—such as potato chips, roasted coffee beans, plastic granules, textured food products, and heterogeneous industrial raw materials. Unlike conventional 0/45° colorimeters optimized for flat, homogeneous surfaces, the Aeros employs a patented non-contact optical architecture (patent pending) combined with dynamic sample positioning to deliver statistically robust, representative color data without physical compression, flattening, or manual repositioning. Its measurement principle relies on full-spectrum LED illumination (400–700 nm) coupled with high-fidelity spectral response detection within an integrated 0/45° geometry integrating sphere. This configuration ensures compliance with CIE 15:2018 and ASTM D2244 for color difference evaluation, while minimizing directional bias and surface texture artifacts common in diffuse-reflectance systems.
Key Features
- Non-contact measurement mode: Eliminates sample compression, contamination, or mechanical damage—critical for fragile, oily, or hygroscopic materials such as snack foods and roasted beans.
- Automated height positioning: Integrated ultrasonic and optical sensors dynamically detect optimal focal distance (±0.5 mm resolution), ensuring consistent illumination geometry across variable sample topographies.
- Motorized rotating test stage: Completes 35 discrete spatial measurements per 5-second rotation cycle, covering up to 223.2 cm² (34.6 in²) of effective sampling area—enabling macro-level color homogeneity assessment.
- Benchtop-integrated 7-inch full-color capacitive touchscreen: Intuitive UI with one-touch measurement initiation; no external PC required for routine operation.
- Industrial-grade sealed optical and drive modules: Compliant with IP54-rated environmental protection; engineered for continuous use in QC labs and production environments subject to dust, vibration, and thermal drift.
- Long-life full-spectrum LED source: Stable spectral output over >100,000 hours; no warm-up time; minimal photometric degradation per IEC 62471.
Sample Compatibility & Compliance
The Aeros is validated for use with particulate, granular, curvilinear, and multi-textured substrates where traditional contact-based instruments yield poor repeatability. It meets ISO 11664-4 (CIE colorimetry), ASTM E308 (computing tristimulus values), and USP (color assessment of pharmaceutical excipients). Its non-contact methodology supports GLP-compliant workflows by eliminating operator-induced variability and enabling unattended batch analysis. Data integrity is reinforced through embedded audit trails, user-access controls, and optional 21 CFR Part 11–compliant software modules when paired with HunterLab’s Enterprise Edition software suite.
Software & Data Management
Standard firmware includes EasyMatch ESSENTIAL — a standalone application supporting real-time pass/fail evaluation against user-defined tolerances (ΔL*, Δa*, Δb*, ΔE*ab, ΔE00), statistical reporting (mean, SD, min/max), and direct export via Ethernet/Wi-Fi to LIMS, SPC platforms, or enterprise ERP systems. Measurement reports can be emailed directly from the instrument or printed locally/networked. Remote Access Support (RAS) enables secure, encrypted technician-level connectivity for diagnostics, firmware updates, and live operator coaching—fully auditable and session-logged per ISO/IEC 17025 requirements.
Applications
Primary deployment domains include food quality assurance (potato chip browning index, coffee roast classification, cereal flake uniformity), polymer pellet color consistency in extrusion lines, pharmaceutical granule hue verification prior to tableting, and R&D screening of pigment dispersion in composite materials. The Aeros supports method development aligned with internal SOPs, as well as regulatory submissions requiring traceable, instrument-validated color metrics under FDA, EFSA, or Health Canada guidance.
FAQ
Does the Aeros require calibration with physical standards before each use?
No—factory-calibrated using NIST-traceable ceramic tiles; daily verification with a supplied white tile is recommended per ASTM E308 guidelines.
Can the Aeros measure transparent or translucent samples?
Not natively; it is optimized for opaque, diffusely reflecting surfaces. Transmission or backscatter configurations are not supported.
Is the rotating stage compatible with custom sample holders?
Yes—the stage accepts ANSI/ISO-standard 100 mm diameter sample cups and third-party fixtures with mechanical registration pins.
What spectral data formats does the instrument output?
Reflectance spectra (10 nm intervals, 400–700 nm), CIE XYZ, CIELAB, CIELCh, and user-defined color spaces (e.g., HUNTER LAB, Yellowness Index E313).
How is measurement repeatability verified during installation qualification (IQ)?
Via automated 10-cycle repeatability test protocol generating a full Gage R&R report compliant with AIAG MSA v4.
