3nh YS4580 Portable Spectrophotometer (45/0 Geometry)

Overview

The 3nh YS4580 Portable Spectrophotometer is engineered for high-precision color measurement under CIE No. 15–compliant 45/0 optical geometry—featuring 45° annular illumination and 0° vertical detection. This configuration eliminates directional bias from surface texture, gloss, or directional reflectance, making it especially suitable for matte, textured, granular, or striped surfaces common in road signage, textiles, plastics, coatings, ceramics, and food packaging. The instrument employs a concave holographic grating spectrometer with a spectral bandwidth of ≤10 nm and photodiode array detection, delivering full-spectrum reflectance data from 400 to 700 nm at 10 nm intervals. Its Φ20 mm large-aperture measurement port ensures representative sampling across heterogeneous or macro-textured surfaces, while the dedicated UV light source enables quantitative assessment of fluorescent materials—including daylight fluorescent pigments used in traffic safety applications.

Key Features

• Compliant 45/0 optical geometry per CIE 15:2018 and ISO 5-4:2022 for robust color evaluation independent of surface orientation or micro-gloss variation.
• Dual-mode UV illumination system: adjustable UV component for accurate measurement of optical brighteners and fluorescent pigments in road markings, security inks, and textile dyes.
• Integrated spectral database supporting 12 standardized illuminants (D65, A, C, D50–D75, F1–F12), enabling cross-illuminant color difference analysis per CIEDE2000, CMC(l:c), and DIN99.
• Preloaded national standards: GB 2893 (safety colors) and GB/T 18833 (retroreflective sheeting), with customizable polygonal or rectangular tolerance zones for pass/fail judgment in QA workflows.
• High repeatability: ΔE*ab ≤ 0.04 (MAV mode, after thermal stabilization and white calibration), validated against NIST-traceable ceramic standards.
• Rugged portable design with integrated rechargeable Li-ion battery, IP54-rated enclosure, and on-device LCD display with real-time ΔE and spectral curve visualization.

Sample Compatibility & Compliance

The YS4580 accommodates flat, curved, rough, granular, and anisotropic samples—including retroreflective films, embossed plastics, woven fabrics, powdered pigments, and coated road surfaces. Its 45/0 geometry avoids specular exclusion artifacts inherent in 8°/d instruments when measuring semi-gloss or structured surfaces. The device complies with ASTM E308 (computing tristimulus values), ISO/CIE 11664 series (colorimetry), and JJG 595–2019 (Chinese metrological verification regulations for colorimeters). For regulated industries, measurement data—including raw spectra, illuminant selection, observer angle (2°/10°), and tolerance parameters—can be exported with full metadata for GLP/GMP audit trails when used with optional software modules.

Software & Data Management

The instrument interfaces via USB-C or Bluetooth 5.0 with SpectraMagic NX (Windows/macOS), a validated color management platform supporting multi-instrument synchronization, spectral database creation, batch reporting, and SPC charting. All measurements are timestamped and include instrument ID, calibration history, and environmental metadata (ambient temperature/humidity if logged externally). Software supports FDA 21 CFR Part 11–compliant user access control, electronic signatures, and immutable audit logs—enabling traceability in pharmaceutical packaging QC, automotive paint validation, and food labeling compliance. Export formats include CSV, XML, CxF/X3, and industry-standard .qtx for integration into ERP and LIMS systems.

Applications

• Traffic engineering: Quantitative evaluation of luminance factor (Y), chromaticity coordinates (x, y), and retroreflective performance per GB/T 18833 and EN 12802.
• Plastics & electronics: Color consistency monitoring across injection-molded housings, PCB solder masks, and display bezels under multiple illuminants.
• Textiles & printing: Spot-checking dye lot conformity, substrate metamerism assessment, and ink formulation feedback in R&D labs.
• Food & packaging: Objective assessment of label color fidelity, printed carton consistency, and natural product surface variation (e.g., fruit skin, baked goods).
• Paint & coatings: In-line verification of batch-to-batch match in OEM finishing lines and refinish shops.

FAQ

What is the significance of 45/0 geometry in color measurement?
The 45/0 configuration mimics human viewing conditions by using ring-shaped illumination at 45° and detection at 0°, eliminating interference from specular highlights and providing stable results on textured, brushed, or low-gloss surfaces.
Can the YS4580 measure fluorescent materials?
Yes—the instrument includes a switchable UV component that activates during measurement to excite fluorescent pigments, enabling accurate reflectance quantification under D65-equivalent UV-enhanced illumination.
Is spectral data export supported?
Yes—full 10 nm-interval reflectance spectra (400–700 nm) are stored and exportable in ASCII, CSV, or CxF format for third-party analysis or spectral matching algorithms.
How is calibration traceability maintained?
Each unit ships with a NIST-traceable white calibration tile; users can perform daily zero and white calibrations, with calibration history logged and exportable for quality audits.
Does the device support custom color tolerances beyond standard ΔE?
Yes—users may define polygonal, rectangular, or ellipsoidal acceptance regions in CIELAB, CIELCh, or CIE u’v’ space, with real-time pass/fail indication on the display.