HunterLab MiniScan EZ Glass Colorimeter

Overview

The HunterLab MiniScan EZ Glass Colorimeter is a benchtop-grade, high-precision color measurement instrument engineered specifically for rigorous color quality control in glass manufacturing and processing environments. Unlike generic portable colorimeters, the MiniScan EZ employs a true spectrophotometric architecture based on pulsed xenon illumination and a d/8° integrating sphere optical geometry—ensuring compliance with CIE 15:2018 and ISO 7724-1:2023 standards for diffuse illumination and hemispherical detection. Its spectral acquisition spans the full visible range (400–700 nm) at 10 nm intervals, enabling accurate computation of CIE L*a*b*, CIE XYZ, L*C*h°, and ∆E*00 metrics under multiple illuminants (D65, A, C, F2, F7, etc.) and observers (2° and 10°). Designed for stability in industrial settings, the unit integrates the spectrometer, processor, and user interface into a single robust housing—eliminating signal degradation from external cable connections and enhancing long-term calibration integrity. The inclusion of a dedicated green reference tile further ensures traceable baseline verification for glass substrates with high transmittance or low reflectance.

Key Features

• Integrated d/8° spectrophotometer with pulsed xenon lamp—provides stable, flash-based illumination without thermal drift or lamp aging effects typical of tungsten-halogen sources.
• Real-time CIE L*a*b*, ∆E*ab, ∆E*00, Yellowness Index (YI), Whiteness Index (WI), and transmittance/reflectance reporting—calculated per ASTM E308-23 and ISO 11664-4.
• Four-axis display rotation (0°/90°/180°/270°) optimized for ergonomic operation in confined spaces such as laminating booths, inspection stations, or warehouse loading docks.
• Onboard storage for ≥2,000 measurements with timestamp, operator ID, and batch metadata—supports GLP/GMP traceability when paired with EasyMatch QC.
• Rechargeable lithium-ion battery system rated for ≥8 hours of continuous use—enabling uninterrupted measurement during shift changes or mobile QA audits across production lines.
• Large tactile buttons and intuitive menu navigation—designed for gloved operation and minimal training requirements in fast-paced manufacturing environments.

Sample Compatibility & Compliance

The MiniScan EZ Glass Colorimeter is validated for measurement of transparent, translucent, and opaque glass products—including float glass, tempered panels, coated architectural glazing, automotive windshields, and pharmaceutical vials. Its optical path accommodates both reflectance (surface color, coating uniformity) and transmittance (bulk tint, iron oxide content, UV-blocking efficacy) modes via optional accessories. All hardware and firmware comply with IEC 61326-1:2013 (EMC for industrial environments) and meet RoHS 3 and REACH requirements. When operated with EasyMatch QC software, the system supports 21 CFR Part 11–compliant electronic signatures, audit trails, and role-based access control—making it suitable for regulated industries including medical device packaging and ISO 13485-certified facilities.

Software & Data Management

The MiniScan EZ interfaces natively with HunterLab’s EasyMatch QC v5.x software—a platform validated for laboratory and production use under ISO/IEC 17025 and FDA guidance. EasyMatch QC enables method-driven workflows, statistical process control (SPC) charting (X-bar/R, Cp/Cpk), tolerance band definition per product specification, and automated pass/fail reporting. Measurement data exports directly to CSV, XML, or SQL databases; historical datasets are searchable by lot number, date range, operator, or instrument ID. Firmware updates are delivered via secure HTTPS, and calibration validation reports (including CRF and SRM traceability documentation) are generated automatically upon each calibration event.

Applications

• Color consistency verification of tinted and coated architectural glass during tempering and lamination processes.
• Quantification of iron-related greenish tint in soda-lime silicate glass using CIE L*a*b* a* axis deviation and YI E313.
• Batch-to-batch comparison of reflective coatings (e.g., low-E films) via spectral reflectance curves and ∆E*00 against master standards.
• In-line quality gate checks for automotive glazing—measuring haze, luminous transmittance (T_v), and color shift after heat treatment.
• Stability monitoring of colored glass cullet in recycling operations using multi-point averaging across heterogeneous samples.

FAQ

Does the MiniScan EZ Glass Colorimeter require annual recalibration?
Yes—HunterLab recommends annual factory recalibration using NIST-traceable standards; however, daily verification with the included green reference tile satisfies internal QA protocols per ISO 9001:2015 clause 7.1.5.2.
Can it measure frosted or sandblasted glass surfaces?
Yes—the d/8° geometry and large 12.7 mm aperture accommodate diffusely scattering surfaces; multi-shot averaging (configurable up to 10 reads) improves precision for textured substrates.
Is spectral data export supported?
Yes—full 400–700 nm reflectance/transmittance spectra (10 nm resolution) are exportable in ASCII format for third-party analysis in MATLAB, Python, or JMP.
What is the warranty coverage?
HunterLab provides a standard 24-month limited warranty covering parts and labor; extended service plans include preventive maintenance, remote diagnostics, and priority firmware updates.
How does it differ from the UltraScan VIS?
The MiniScan EZ prioritizes portability, rapid deployment, and ruggedized operation in non-laboratory settings, whereas the UltraScan VIS offers higher photometric precision (≤0.02 ∆E*), larger aperture options, and advanced fluorescence correction—suited for R&D and regulatory submission work.