3nh YS4560 Portable Traffic Sign 45/0 Spectrophotometer
| Brand | 3nh |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Manufacturer |
| Product Category | Domestic |
| Model | YS4560 |
| Product Type | Spectrophotometric Colorimeter |
| Instrument Type | Portable |
| Optical Geometry | 45/0 (45° annular illumination, 0° viewing) |
| Illuminant Options | D65, A, C, D50, D55, D75, F1–F12 (including CWF, TPL5, TL84, TL83/U30, DLF) |
| Spectral Range | 400–700 nm |
| Repeatability | Spectral Reflectance (MAV): ≤0.08% std. dev. |
| Colorimetric Values (MAV) | ΔE*ab ≤0.03 (after instrument warm-up and calibration |
Overview
The 3nh YS4560 Portable Traffic Sign 45/0 Spectrophotometer is a high-precision, handheld spectrophotometer engineered for objective color measurement under CIE No. 15–compliant 45/0 optical geometry. This configuration—featuring 45° circumferential illumination and 0° axial detection—minimizes directional bias and specular influence, making it especially suitable for matte, textured, or structured surfaces such as road markings, retroreflective sheeting, traffic signs, and pavement coatings. The instrument employs a concave holographic grating and a 256-pixel dual-array CMOS detector to acquire full spectral reflectance data across the visible spectrum (400–700 nm) with high photometric stability. Its optical design conforms to ISO 7724-1, ASTM E1164, DIN 5033-7, GB/T 3978, and GB/T 18833—key standards governing colorimetric evaluation in transportation infrastructure and industrial quality assurance.
Key Features
- CIE No. 15–compliant 45/0 optical geometry with annular LED illumination and UV-inclusive/UV-excluded modes for accurate assessment of fluorescent and non-fluorescent materials
- Dual aperture selection (Φ4 mm and Φ8 mm) enables optimized sampling for small-area features (e.g., retroreflective microprisms) and larger homogeneous regions
- Integrated UV light source supports measurement of fluorescent pigments commonly used in high-visibility traffic signage and safety coatings
- High-fidelity spectral acquisition using a concave grating and dual CMOS array ensures robust signal-to-noise ratio and long-term wavelength stability
- 3.5-inch capacitive TFT touchscreen with intuitive UI supports field operation without external computing devices
- Onboard storage capacity exceeds 30,000 measurement records, each tagged with spectral data, CIE XYZ, Lab, LCH, and user-defined metadata
- Dual observer angles (2° and 10°) and comprehensive illuminant library (12 standard sources) enable compliance with global color specification protocols
- USB 2.0 and Bluetooth 2.1 connectivity provide flexible integration with laboratory PCs, mobile tablets, and enterprise QA systems
Sample Compatibility & Compliance
The YS4560 is validated for use across heterogeneous material classes encountered in transportation infrastructure and industrial manufacturing—including thermoplastic road markings, glass-bead-embedded sheeting, solvent-based traffic paints, polymer-based signage substrates, and coated metal panels. It supports direct measurement of both non-retroreflective and retroreflective surfaces when used with appropriate calibration tiles and geometry alignment fixtures. Built-in reference libraries include GB 2893 (safety colors) and GB/T 18833 (retroreflective sheeting specifications), enabling automated pass/fail evaluation against luminance factor (Y), chromaticity coordinates (x, y), and chromaticity tolerances defined by polygonal or rectangular Δuv bounds. All hardware and firmware comply with electromagnetic compatibility (EMC) requirements per GB/T 18268 and are designed to operate reliably in ambient temperatures ranging from 0°C to 40°C and relative humidity up to 85% non-condensing.
Software & Data Management
The instrument is fully compatible with 3nh’s proprietary PC-based color management software, which supports advanced spectral analysis, multi-sample statistical reporting, trend charting, and GLP-compliant audit trails. Software features include customizable report templates compliant with ISO/IEC 17025 documentation requirements, batch comparison against master standards, SPC chart generation (X-bar/R, Cpk), and export of raw spectral data in CSV or XML format for third-party analysis. The system supports 21 CFR Part 11–ready user access control (role-based login), electronic signatures, and immutable measurement history logging—critical for regulated environments requiring traceability in QC/QA workflows. Calibration data, instrument diagnostics, and firmware version logs are automatically embedded in each exported dataset.
Applications
The YS4560 serves as a primary verification tool in traffic engineering laboratories, highway maintenance depots, and supplier quality departments responsible for verifying conformance of road surface markings, delineators, and signage to national and regional performance specifications. It is routinely deployed for incoming inspection of retroreflective sheeting batches, in-process monitoring of thermoplastic application lines, and post-installation validation of pavement marking luminance and chromaticity. Beyond transportation, its versatility extends to color-critical sectors including automotive trim coating, architectural coatings, textile dyeing, and plastic injection molding—where consistent color reproduction across supply chains demands metrologically traceable instrumentation.
FAQ
What standards does the YS4560 comply with for traffic sign color evaluation?
It adheres to GB/T 18833, GB 2893, ISO 7724-1, ASTM E1164, and CIE Publication No. 15, supporting luminance factor (Y), chromaticity (x,y), and chromaticity tolerance assessments per specified polygonal or rectangular limits.
Can the YS4560 measure fluorescent road marking materials?
Yes—the integrated UV LED source enables quantitative measurement of fluorescent pigments under standardized UV-augmented illuminants such as D65+UV or F11 (TL84), critical for evaluating daytime chromaticity of photoluminescent and UV-responsive markings.
How is measurement repeatability verified on this instrument?
Repeatability is validated per CIE 15:2018 methodology: after thermal stabilization and white calibration, 30 consecutive measurements on a certified ceramic white tile (MAV mode, 5 s interval) yield ΔE*ab ≤ 0.03 and spectral reflectance standard deviation ≤ 0.08% across 400–700 nm.
Is the instrument suitable for outdoor field use?
Yes—its ruggedized housing, anti-scratch sapphire window, dust-resistant aperture design, and battery-powered operation (up to 8 hours continuous use) support reliable deployment in roadside, construction site, and depot environments.
Does the software support automated reporting for regulatory submissions?
Yes—the PC software generates PDF and Excel reports with embedded calibration certificates, operator IDs, timestamps, environmental metadata, and statistical summaries aligned with ISO/IEC 17025 and internal QA documentation requirements.
