3nh TS4010 Liquid Colorimeter

Overview

The 3nh TS4010 Liquid Colorimeter is a benchtop spectrophotometric instrument engineered for high-precision transmittance color measurement of transparent and semi-transparent liquid samples. It operates on the CIE-compliant d/8° integrating sphere geometry—optimized for diffuse illumination and axial detection—enabling accurate quantification of spectral transmittance and derived colorimetric indices under standardized viewing conditions. The system employs a dual 40-element silicon photodiode array detector coupled with plane grating dispersion to deliver stable, high-resolution spectral data across the full visible and near-UV range (360–780 nm, 10 nm interval, 5 nm FWHM bandwidth). Designed specifically for regulated industrial environments, the TS4010 supports traceable color assessment in compliance with ASTM D1003, ASTM D1044, ASTM D1500, ISO/CIE No. 15:2018, GB/T 3978, and DIN 5033 Teil 7, making it suitable for quality assurance in pharmaceuticals, petrochemicals, food & beverage, cosmetics, and specialty chemicals.

Key Features

• Full-spectrum combined LED illumination source with calibrated spectral output from 360 nm to 780 nm, ensuring long-term photometric stability and >3 million measurement cycles over a 5-year operational lifetime.
• Dual 40-channel silicon photodiode array sensor architecture enabling rapid spectral acquisition (<0.8 s per measurement) with high signal-to-noise ratio and low thermal drift.
• Intelligent zero-point calibration algorithm that dynamically compensates for ambient light interference and optical path variations, maintaining measurement integrity across diverse laboratory or production floor conditions.
• Integrated 7-inch capacitive touchscreen display supporting real-time visualization of spectral curves, CIE chromaticity diagrams (x,y; u’,v’), ΔE-based color difference maps, color simulation overlays, and pass/fail decision logic.
• Comprehensive built-in color space support including CIE LAB, XYZ, Yxy, LCh, CIE LUV, DIN 99, Hunter Lab, sRGB, and βxy—with extended metrics accessible via PC software (e.g., CMYK, Munsell).
• Preloaded industry-specific color scales: APHA/Hazen/Pt-Co, Gardner, Saybolt, ASTM D1500, EBC, ICUMSA, and pharmacopoeial standards (USP , Ph. Eur. 2.2.58, ChP 0901), all calculated directly from raw transmittance spectra.

Sample Compatibility & Compliance

The TS4010 accommodates standard liquid cuvettes (10 mm, 30 mm, 50 mm, and 100 mm path lengths) as well as optional micro-volume fixtures (4 mm path length) for high-value or limited-sample applications. Its optical design conforms to ASTM D1003 (haze/transmittance), ASTM D1044 (clarity), and ISO 13468-1 for transparent plastics—making it equally applicable to solvent-based formulations, aqueous pharmaceutical solutions, edible oils, beer wort, syrups, and polymerizable monomers. All color calculations adhere to CIE 15:2018 and ISO/CIE 11664 series definitions, and spectral data export supports audit-ready formats compatible with GLP/GMP documentation workflows. Optional USB and RS232 interfaces enable integration into centralized QC databases and 21 CFR Part 11–compliant electronic record systems when used with validated software configurations.

Software & Data Management

The TS4010 ships with 3nh’s proprietary Color Quality Management Software (CQMS), a Windows-based application supporting statistical process control (SPC), batch trending, multi-instrument comparison, and customizable report generation (PDF, CSV, XML). Raw spectral data, metadata (operator ID, timestamp, sample ID, instrument serial number), and calibration logs are stored with immutable timestamps and checksum verification. The software implements role-based access control, electronic signature capture, and full audit trail functionality—including user action history, parameter change logs, and result revision tracking—to meet FDA 21 CFR Part 11 and EU Annex 11 requirements. Up to 1,000 standard references and 10,000 sample records can be stored locally on-device; cloud synchronization and SQL database export are supported via enterprise licensing.

Applications

• Pharmaceutical manufacturing: Quantitative assessment of injectable solutions, ophthalmic preparations, and oral suspensions against USP and Ph. Eur. 2.2.58 color limits.
• Petrochemical refining: ASTM D1500 grading of lubricants, diesel fuels, and base oils; APHA/Pt-Co evaluation of process solvents and catalyst wash streams.
• F&B quality control: EBC determination in malt beverages; ICUMSA color indexing in cane and beet sugar syrups; Gardner scale monitoring in edible oils and flavor emulsions.
• Chemical R&D: Kinetic studies of dye degradation, oxidation-induced yellowing in polymers, and batch-to-batch consistency validation of transparent coatings and adhesives.
• Cosmetics formulation: Objective evaluation of toner clarity, serum hue shift during stability testing, and regulatory alignment with ISO 8781-2 for colorant specifications.

FAQ

What is the optical geometry of the TS4010, and how does it differ from 0/0 transmission mode?
The TS4010 uses d/8° geometry with an integrating sphere, providing diffuse illumination and directional detection—ideal for measuring turbid or slightly scattering liquids while minimizing surface reflection artifacts. It approximates CIE 15:2018 0/0 conditions only under highly clarified samples; for regulatory submissions requiring strict 0/0 compliance, a collimated beam accessory may be required.
Does the instrument support ASTM D1500 petroleum color grading natively?
Yes—the TS4010 calculates ASTM D1500 index directly from measured transmittance spectra without external lookup tables, using the official ASTM polynomial interpolation method referenced in D1500-22.
How is traceability maintained for calibration and measurement uncertainty?
Each unit ships with NIST-traceable liquid calibration standards (APHA 5–500, Gardner 1–18) and a certified reflectance tile. Internal wavelength and photometric calibration are performed using onboard reference LEDs and stable dark-current compensation routines, with calibration validity logged and exportable.
Can the TS4010 measure absorbance at specific wavelengths (e.g., 280 nm for protein quantification)?
While optimized for colorimetry, the full 360–780 nm spectral dataset enables post-acquisition extraction of absorbance values at any wavelength within that range, provided the sample’s optical density falls within the linear response region (0–2.0 AU).
Is remote firmware update and configuration management supported?
Yes—via USB or serial connection, firmware updates and instrument configuration backups/restores are managed through CQMS; over-the-air updates are not supported due to regulatory constraints on unvalidated field modifications.