CHN SPEC CS-826 Spectrophotometer

CHN SPEC CS-826 Spectrophotometer

The CHN SPEC CS-826 Spectrophotometer is an all-in-one laboratory-grade color analysis system. With an ultra-large measurement chamber and the ability to handle a variety of material states, this device not only perfectly measures standard opaque solid surfaces but also accurately evaluates transparent, semi-transparent materials, and even liquids.

Outstanding Features

• Dual measurement modes (Reflectance & Transmittance): The greatest strength of the CS-826 is its simultaneous support for two measurement methods. The reflectance measurement mode (D/8) is for opaque materials (plastics, fabrics, paints), and the transmittance measurement mode (D/0) is for light-transmitting materials such as glass, films, or chemical solutions.
• Accurate optical system (SCI+SCE): In reflectance measurement mode, the device simultaneously measures both SCI (Specular Component Included) and SCE (Specular Component Excluded) components. This helps users analyze the true color of the material as well as the effect caused by surface gloss.
• Fluorescent material measurement (Integrated UV): The device is equipped with a full-spectrum LED light source combined with UV (ultraviolet) lamps. This allows the CS-826 to extremely accurately analyze samples containing Optical Brightening Agents (OBA) — a must-have feature when measuring paper, detergents, or high-end textiles.
• Laboratory-grade accuracy: The device uses a wide-band spectral sensor from 360-780nm, providing excellent repeatability at dE*ab ≤ 0.015. The inter-instrument agreement is very high, allowing multinational corporations to synchronize color standards globally.
• Positioning camera & Multiple apertures: The device integrates a high-definition camera that helps users clearly see the measurement area through the screen, which is extremely useful when measuring samples with complex patterns. The device also supports multiple aperture sizes (automatic switching) to suit each sample size.
• Modern design, powerful software: The large touch screen with an adjustable viewing angle allows for easy independent operation. Furthermore, when connected to computer software, the device provides in-depth spectral graph analysis tools, tolerance setting, and unlimited standard database management.

Technical Specifications:

Optical System: Reflectance: d/8 (Diffuse illumination, 8° viewing angle) Simultaneous SCI/SCE measurement, according to CIE No.15, GB/T 3978, GB 2893, GB/T 18833, ISO7724/1, DIN5033 Teil7, JIS Z8722 condition C, ASTM E1164, ASTM-D1003-07. Transmittance: d/0 (Diffuse illumination, 0° viewing angle)

Sensor: Silicon photodiode

Grating Method: Concave grating

Integrating Sphere Diameter: 152mm

Wavelength Range: 360nm-780nm

Wavelength Interval: 10nm

Spectral Half-width: 5nm

Reflectance Range, Resolution: 0-200%, 0.01%

Light Source: Xenon lamp & LED

UV Measurement: UV included, 400nm cut, 420nm cut, 460nm cut

Measurement Time: SCI/SCE < 2s; SCI+SCE < 4s

Measurement Aperture: Reflectance: XLAV Φ30mm, LAV 18mm, MAV Φ11mm, SAV Φ6mm. Transmittance: Φ25mm (Automatic aperture size recognition)

Sample Size: Unlimited sample width and height, thickness ≤50mm

Long-term Repeatability: XLAV Chromaticity Value: Standard deviation within ΔE*ab 0.01 (arbitrary temperature change 20℃ ± 10℃, white tile measured every hour within 24 hours)

Repeatability: XLAV Spectral Reflectance / Transmittance: Standard deviation within 0.1%; XLAV Chromaticity Value: Standard deviation within ΔE*ab 0.01 (maximum 0.02) * When a white tile is measured 30 times at 10-second intervals after white calibration

Inter-instrument Agreement: XLAV ΔE*ab 0.1 (BCRA Series II, Average measurement of 12 tiles, at 23℃)

Observer Angles: 2°, 10°

Illuminants: A, C, D50, D55, D65, D75, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, CWF, U30, DLF, NBF, TL83, TL84

Languages: English, Russian, Spanish, Portuguese, Japanese, Thai, Korean, German, French, Polish, Chinese (Simplified and Traditional)

Display: Spectral graph/values for reflectance and transmittance, color values, color difference values, Pass/Fail, color simulation, color assessment, opacity, liquid chromaticity values, color trend

Color Spaces: L*a*b, L*C*h, Hunter Lab, Yxy, XYZ

Other Indices:

WI (ASTM E313-00, ASTM E313-73, CIE/ISO, AATCC, Hunter, Taube Berger, Stensby)

YI (ASTM D1925, ASTM E313-00, ASTM E313-73), Tint (ASTM E313-00), Metamerism index milm, Stain fastness, Color fastness, ISO brightness, R457, A density, T density, E density, M Density, APHA/Pt-Co/Hazen, Gardner, Saybolt, ASTM color, Opacity, Total Transmittance, Tint/Lightness, Color Strength

Color Difference Formulas: ΔE*ab, ΔE*CH, ΔE*uv, ΔE*cmc, ΔE*94, ΔE*00, ΔE*ab(hunter), 555 shade sort

Storage: 8GB

Screen: 7-inch touch screen

Operating System: Android

Adapter: 12V/3A

Working Temperature: 5-40℃ (40-104F), relative humidity 80% (35℃) non-condensing

Storage Temperature: -20-45℃ (-4-113F), relative humidity 80% (35℃) non-condensing

Interface: RS-232, USB, USB-B
Other Functions: 1. Camera for measurement area monitoring; 2. Supports horizontal, vertical, and downward measurement methods (requires optional accessories for downward measurement); 3. Automatic temperature and humidity compensation function.

Standard Accessories: Adapter, USB cable, transmittance fixture, U disk (PC software), Black Calibration Cavity, White and Green Calibration Tile, Reflectance Test Support, 30mm, 18mm, 11mm and 6mm apertures, reflectance sample fixture, 40x10mm glass cell, reflectance fixture

Optional Accessories: Heating Fixture for Transmittance, Vertical Support and Pneumatic ram for downward measurement, Reflectance fixture for small size sample, Reflectance Glass Cell Support, Corrosion-Resistant Protective Plate (non-removable), Sample Holder for Fiber, Film Fixture, Transmittance Fixture for Small Aperture, Trolley Case, European Standard Plug, American Standard Plug

Practical Applications

The flexibility in measurement (solid, liquid, powder, film) makes the CHN SPEC CS-826 a core device for:

• Central R&D Laboratories: Researching new materials, setting and controlling strict color standards.
• Chemical, Food & Beverage Industries: Measuring the color of solutions, essential oils, beverages, and syrups (via cuvettes in transmittance mode).
• Plastics, Packaging & Glass Industries: Evaluating transparency, measuring the color of plastic pellets, acrylic sheets, PET films, and glass.
• Coatings, Textiles & Paper: Analyzing color deviation, CIE whiteness, YI yellowness, and perfectly handling fluorescent samples.