3nh SC-10+ Handheld Economical Color Difference Meter

Overview

The 3nh SC-10+ Handheld Economical Color Difference Meter is a CIE-compliant, ISO-aligned optical measurement instrument engineered for rapid, reliable color assessment in production and quality control environments. It operates on the fundamental principle of spectrophotometric reflectance measurement using an 8°/d (8-degree illumination / diffuse viewing) optical geometry—fully conforming to CIE Publication No. 15 and GB/T 3978 national standards. This geometry ensures high repeatability and minimizes directional sensitivity to surface texture and gloss, making it especially suitable for matte, semi-gloss, and textured samples encountered across industrial sectors. The device integrates a full-spectrum LED light source with stable spectral output across the visible range (400–700 nm), coupled with a dual-path CMOS sensor architecture to enhance signal-to-noise ratio and photometric accuracy. Unlike legacy filter-based meters, the SC-10+ captures spectral reflectance data at high resolution within its defined band, enabling robust calculation of CIE LAB coordinates and ΔE*ab color differences under D65 illuminant and the CIE 10° standard observer.

Key Features

• High short-term repeatability: ΔE*ab ≤ 0.03 under controlled conditions, verified via internal stability protocols
• Factory-calibrated white reference: Eliminates mandatory pre-measurement white tile verification—enabling true “power-on-and-measure” operation
• Ergonomic upright handheld design with integrated crosshair targeting system for precise 4 mm aperture placement
• Rechargeable lithium-ion battery (3.7 V / 3200 mAh): Supports >8,000 measurements per full charge, reducing consumable dependency and total cost of ownership
• Self-contained operation: No PC connection required for basic functionality—measurements are stored onboard and accessible via intuitive TFT display
• Dual-mode measurement interface: USB port supports power-only charging (no data transfer), preserving firmware integrity and simplifying field deployment

Sample Compatibility & Compliance

The SC-10+ is validated for use across diverse material classes including textiles, leather, plastics, coatings, printing inks, food packaging surfaces, pharmaceutical blister foils, and cosmetic substrates. Its 4 mm measurement aperture accommodates flat, curved, and moderately irregular surfaces when used with the included platform fixture. The instrument complies with core international colorimetric frameworks: CIE 15:2018 (Colorimetry), ISO 11664-4 (CIE LAB space), and GB/T 3978–2008 (Standard Illuminants and Geometrical Conditions for Color Measurement). While not certified for GLP or GMP-regulated workflows out-of-the-box, its traceable calibration path, audit-ready measurement timestamps, and stable inter-instrument agreement (inter-instrument agreement ≤ ΔE*ab 0.4 against BCRA Series II 12-tile set) support integration into ISO 9001-certified QC systems.

Software & Data Management

All measurement data—including up to 100 standard references and 10,000 sample records—is stored locally in non-volatile memory with time/date stamping. Data export is supported via USB mass storage emulation (when connected to a host PC), allowing direct file access to CSV-formatted reports containing L*, a*, b*, ΔE*ab, and measurement metadata. Firmware updates are performed offline using vendor-provided binaries—ensuring version control without cloud dependency. The device does not implement FDA 21 CFR Part 11 electronic signature or audit trail features; however, its deterministic measurement logic and immutable timestamping provide foundational traceability for internal QA documentation.

Applications

The SC-10+ serves as a primary color verification tool in batch release inspection, incoming raw material screening, and in-line process monitoring where rapid pass/fail decisions are required. Typical use cases include shade matching in textile dye houses, consistency checks for injection-molded plastic housings, coating uniformity validation in automotive trim manufacturing, and label color verification in pharmaceutical packaging lines. Its portability and battery autonomy make it ideal for supplier audits, warehouse sampling, and multi-site comparative studies where lab-grade benchtop instruments are impractical.

FAQ

What is the recommended warm-up time before achieving specified repeatability?
Instrument should be powered on for ≥15 minutes in ambient temperature (23 ± 5°C) prior to calibration and critical measurements.
Does the SC-10+ support custom illuminants or observer angles beyond D65 and 10°?
No—only D65 illuminant and CIE 10° standard observer are implemented per design compliance with GB/T 3978 and CIE 15.
Can the device measure translucent or powdered samples directly?
Not without accessories—the optional powder test box or integrating sphere adapter is required for non-opaque or particulate materials.
Is firmware upgrade capability available in the field?
Yes—updates are distributed as signed binary files and installed via USB-connected PC using vendor-supplied utility software.
What is the expected service life of the LED light source?
Rated for >1.6 million measurements or ≥5 years of typical industrial usage, assuming average daily duty cycle of 200 readings.