HunterLab Agera Desktop Color Difference Meter

Overview

The HunterLab Agera is a high-precision benchtop color difference meter engineered for comprehensive surface appearance characterization in industrial quality control environments. Unlike conventional 0°/d or d/8° spectrophotometers, the Agera implements a patented 0°/45° annular optical geometry—designed to replicate human visual perception of color under standardized viewing conditions. This geometry eliminates directional bias caused by surface texture, gloss, or anisotropic structure, delivering metrologically traceable color data (CIE L*a*b*, ΔE*ab, Yellowness Index, Whiteness Index, etc.) with exceptional inter-instrument agreement. The system integrates full-spectrum LED illumination (360–700 nm), including tunable UV energy for accurate fluorescence correction—critical for measuring fluorescent whitening agents (FWAs), optical brighteners, and UV-reactive polymers. Its dual-function capability enables simultaneous acquisition of spectral reflectance, 60° gloss (ASTM D523 / ISO 2813 certified), and high-fidelity RGB imagery—all within a single measurement cycle.

Key Features

• 0°/45° annular optical design ensures consistent color evaluation across textured, directional, or structured surfaces without sample reorientation.
• Integrated 60° gloss sensor calibrated and certified per ASTM D523 and ISO 2813, with NIST-traceable calibration certificate supplied.
• 5-megapixel imaging module with coaxial 45° full-spectrum illumination captures true-field-of-view reference images synchronized with spectral data—enabling post-acquisition spatial analysis via RGB histogram mapping.
• Three interchangeable apertures (XL: 52 mm, L: 30 mm, M: 18 mm) support both macro-scale averaging and localized spot assessment—ideal for heterogeneous materials such as ground coffee, plastic granules, or agricultural commodities.
• Industrial-grade 7″ capacitive touchscreen (1280 × 800 px) runs embedded EasyMatch ESSENTIAL software—supporting custom QC limits, pass/fail logic, statistical process control (SPC) charts, and multi-standard compliance (e.g., ISO 11664, ASTM E308, CIE 15:2018).
• Remote diagnostics and firmware updates via HunterLab Remote Access—a secure, encrypted connection enabling real-time technical support and operator training without onsite intervention.

Sample Compatibility & Compliance

The Agera accommodates flat, curved, textured, particulate, and irregularly shaped samples without physical compression or masking—making it suitable for R&D and production QA/QC across food, pharmaceuticals, plastics, coatings, and textiles. Its non-contact measurement mode (enabled by precise height-sensing and auto-focus algorithms) prevents cross-contamination and mechanical damage—particularly critical for hygienic or fragile specimens. All optical components are sealed against dust and moisture per IP54 rating, and the instrument meets IEC 61000-4 electromagnetic compatibility standards. For regulated industries, an optional 21 CFR Part 11-compliant software module provides audit trails, electronic signatures, role-based access control, and immutable data archiving—fully aligned with GLP and GMP documentation requirements.

Software & Data Management

EasyMatch ESSENTIAL operates natively on the Agera’s embedded Linux platform—requiring no external PC for routine operation. It supports direct data export via email (SMTP), network printing (IPP), USB storage, and protocol-based transmission to LIMS, MES, or SPC systems using TCP/IP, Modbus TCP, or OPC UA. Measurement history—including spectra, gloss values, images, and metadata—is stored locally with timestamping and user attribution. Data files adhere to ASTM E2983-22 structured format for interoperability. Optional cloud synchronization (via HunterLab Connect) enables centralized fleet monitoring, method deployment, and cross-site correlation studies.

Applications

The Agera is routinely deployed in applications demanding multi-parameter surface characterization: batch-to-batch color consistency verification of roasted coffee beans; fluorescence-corrected whiteness assessment of detergent formulations; gloss-color correlation analysis of injection-molded automotive trim; texture-invariant hue evaluation of woven textiles; and spectral stability tracking of UV-degraded polymer films. Its ability to generate statistically robust averages from up to 35 spatially distributed readings per rotation (total area up to 223.2 cm²) makes it uniquely suited for validating homogeneity in bulk particulates and powdered APIs.

FAQ

Does the Agera require annual recalibration?
No—HunterLab instruments are factory-calibrated with NIST-traceable standards and feature internal diagnostic routines that verify photometric stability daily. Optional annual verification services include full optical path validation and certificate issuance.
Can the Agera measure transparent or translucent samples?
It is optimized for opaque and semi-opaque reflective surfaces. Transmission measurements require optional accessories (e.g., transmission cell holder) not included with the base Agera configuration.
Is the UV output adjustable for different FWA standards?
Yes—the UV LED intensity is software-tunable, allowing users to match specific industry benchmarks (e.g., ISO 105-J03, AATCC 110) or define custom UV energy profiles.
What is the warranty coverage for optical components?
HunterLab provides a 3-year limited warranty covering all optical assemblies, including LEDs, diffusers, and sensor arrays—reflecting the system’s sealed, maintenance-free architecture.
How does the Agera handle ambient light interference?
The 0°/45° annular design inherently rejects ambient light through geometric isolation; additionally, the instrument performs real-time ambient compensation during each measurement cycle.