Nippon Denshoku NF-333 Portable Spectrophotometer
| Origin | Japan |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | NF-333 |
| Price | Upon Request |
Overview
The Nippon Denshoku NF-333 Portable Spectrophotometer is a compact, high-precision instrument engineered for spectral reflectance and colorimetric analysis in field and production environments. Based on the principle of diffuse d/8° geometry (with specular component excluded), it employs a multi-color LED light source covering the visible spectrum from 400 nm to 700 nm at 20 nm intervals—fully compliant with CIE 15:2018 and ISO/CIE 11664 series standards. Its dual-aperture capability (Φ8 mm standard, Φ4 mm optional) enables accurate measurement of both large uniform surfaces and small or textured substrates, including printed materials, coated films, plastics, textiles, and packaging. Designed for real-time spectral acquisition and chromatic evaluation, the NF-333 delivers traceable color data under 15 standardized illuminants—including A, C, D50, D65, F2–F12—and supports both 2° and 10° standard observer conditions. Calibration traceability is maintained to the Japanese Color Research Institute (JCRI) national reference standards, ensuring metrological integrity across global color management workflows.
Key Features
- Triple-mode ergonomic probe design: pen-type, mouse-type, and stapler-type configurations for flexible adaptation to curved, recessed, or irregular sample geometries
- High-resolution LCD display showing real-time spectral reflectance curves, ΔE*ab deviation maps, and multi-system color coordinates simultaneously
- Multi-standard color space support: CIE XYZ, Yxy, L*a*b*, L*C*H*, L*u*v*, Hunter Lab, Munsell (HV/C under CIE D65/2° and D50/10°), WI (ASTM E313, ISO 2470, CIE No.15.2), YI (ASTM D1925 & E313), MI, and CMYK reflectance intensity
- LED illumination system with >10-year operational lifetime and stable spectral output—no warm-up required
- Repeatability performance validated per JIS Z 8722 and ISO 7724-2: ΔE*ab ≤ 0.02 (Φ8 mm aperture, white tile, n=20); ΔE*ab ≤ 0.05 (Φ4 mm aperture)
- Lightweight construction: 420 g total (including 4×AA alkaline batteries); probe weight only 110 g—optimized for extended handheld operation
- Integrated pass/fail tolerance checking against user-defined color standards, supporting QC decision-making without PC dependency
Sample Compatibility & Compliance
The NF-333 is validated for use across offset printing, digital proofing, ink formulation, packaging quality assurance, and industrial coating inspection. It meets critical international standards including JIS Z 8722, ISO 7724-1/2/3, DIN 5033, ASTM D 2244 (color difference), ASTM E 308 (CIE colorimetric computation), JIS K 7654, ISO 5/4 (paper brightness), ANSI PH2.17, and DIN 16536. Its optical architecture conforms to CIE Publication 15:2018 requirements for spectral tristimulus value calculation and supports GLP-compliant documentation when paired with the included software. All measurement algorithms implement CIE 1931 2° and CIE 1964 10° observer functions with full spectral integration, enabling reliable inter-instrument agreement in multi-site color control networks.
Software & Data Management
The NF-333 ships with Nippon Denshoku’s proprietary Color Management Software (CMS-NF), compatible with Windows OS. The application enables full spectral data export (CSV, TXT), batch comparison against master references, statistical process control (SPC) charting, and automated report generation compliant with ISO/IEC 17025 documentation requirements. USB data transfer ensures secure, audit-trail-capable communication; all measurement logs include timestamp, operator ID, instrument serial number, calibration history, and environmental metadata (illuminant, observer, aperture). Software features FDA 21 CFR Part 11-ready user authentication, electronic signatures, and immutable audit trails—suitable for regulated industries requiring GMP/GLP validation.
Applications
- On-press color verification during offset and flexographic printing
- Proof-to-print validation in prepress departments
- In-line quality monitoring of plastic extrusions, laminated films, and coated metals
- Color consistency auditing across global supplier networks
- R&D lab evaluation of pigment dispersions, UV-curable inks, and effect coatings
- Field-based assessment of weathered façade materials, automotive finishes, and signage
- Educational use in color science, graphic arts, and materials engineering curricula
FAQ
What calibration standards does the NF-333 support?
The instrument accepts JCRI-traceable ceramic white tiles and includes factory calibration certificates aligned to NIST-traceable reference materials via JCRI’s national metrology chain.
Is the NF-333 suitable for measuring metallic or pearlescent coatings?
Yes—its d/8° geometry with SCE exclusion and multi-angle spectral sampling provides robust performance on gonio-apparent surfaces when used with consistent probe orientation and pressure control.
Can measurement data be integrated into enterprise QMS platforms?
Yes—CSV and XML exports are structured for direct ingestion into SAP QM, TrackWise, and ETQ Reliance via configurable data mapping templates.
Does the device comply with ISO/IEC 17025 requirements for accredited labs?
When operated with documented calibration schedules, environmental controls, and CMS-NF audit logs, the NF-333 satisfies Clause 6.4 (Equipment) and Clause 7.7 (Results Reporting) of ISO/IEC 17025:2017.
What is the battery life under typical field use?
Approximately 8,000 measurements per set of four AA alkaline cells (based on 1-s interval sampling, ambient 23°C); AC adapter option available for continuous benchtop operation.
