{"id":3755,"date":"2026-07-20T16:25:58","date_gmt":"2026-07-20T16:25:58","guid":{"rendered":"https:\/\/maydomau.vn\/san-pham\/may-quang-pho-de-ban-chn-spec-cs-821n-d-8-de-ab-0-015-360nm-780nm\/"},"modified":"2026-07-20T16:31:39","modified_gmt":"2026-07-20T16:31:39","slug":"chn-spec-cs-821n-benchtop-spectrophotometer-d-8-de-ab-0-015-360nm-780nm","status":"publish","type":"product","link":"https:\/\/maydomau.vn\/en\/san-pham\/chn-spec-cs-821n-benchtop-spectrophotometer-d-8-de-ab-0-015-360nm-780nm\/","title":{"rendered":"CHN SPEC CS-821N Benchtop Spectrophotometer (d\/8, \u0394E*ab 0.015, 360nm-780nm)"},"content":{"rendered":"

CHN SPEC CS-821N Benchtop Spectrophotometer (d\/8, \u0394E*ab 0.015, 360nm-780nm)<\/strong><\/h2>\n

The CHNSpec CS-821N Benchtop Spectrophotometer is a premium specialized color analysis device, specifically designed for research and development (R&D) laboratories and quality control (QC) centers with the most stringent standards. With a state-of-the-art optical structure and extremely low error control, the CS-821N is a comprehensive “measurement station”, perfectly meeting the needs of complex material analysis.<\/p>\n

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Outstanding Features<\/strong><\/h2>\n

Ultimate Accuracy and Repeatability:<\/strong> With a highly impressive repeatability (\u0394E*ab \u2264 0.015), the CS-821N delivers almost absolute consistency across measurements. This device serves as a “benchmark” for creating and cross-referencing color data with global factories or partners.<\/p>\n

Multi-State Measurement (Reflectance & Transmittance):<\/strong> Featuring a highly spacious sample measurement chamber, the device allows technicians to flexibly measure not only solid, opaque material surfaces (reflectance) but also perfectly transparent, semi-transparent samples, or liquids (transmittance) with extreme accuracy.<\/p>\n

Simultaneous SCI and SCE Analysis:<\/strong> The smart optical system enables the device to simultaneously calculate both SCI (true color of the material, ideal for color matching) and SCE (visual perceived color affected by surface roughness) values in a single click, saving maximum time.<\/p>\n

Advanced UV Optical Control:<\/strong> The Xenon light source integrates UV control and calibration capabilities (UV included\/UV excluded), which is particularly important for accurately evaluating materials containing optical brightening agents (OBA) or luminescent materials.<\/p>\n

Dual Optical Path Design:<\/strong> Continuous light source monitoring technology eliminates energy fluctuations over time and automatically compensates for environmental factors, thereby maintaining extremely stable operating performance.<\/p>\n

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Technical Specifications:<\/strong><\/h2>\n

Illumination \/ Observation System:<\/p>\n

Reflectance: d\/8 (diffuse illumination, 8\u00b0 viewing angle), Transmittance: d\/0 (diffuse illumination, 0\u00b0 viewing angle);<\/p>\n

Simultaneous measurement of SCI (Specular Component Included) \/ SCE (Specular Component Excluded);<\/p>\n

Compliance Standards: CIE No.15, GB\/T 3978, GB 2893, GB\/T 18833, ISO 7724\/1, DIN 5033 Teil 7, JIS Z8722 Condition C, ASTM E1164, ASTM D1003-07<\/p>\n

Sensor: Dual-row high-precision CMOS array sensor<\/p>\n

Grating Method: Concave grating<\/p>\n

Integrating Sphere Diameter: 152mm<\/p>\n

Wavelength Range: 360nm-780nm<\/p>\n

Wavelength Interval: 10nm<\/p>\n

Spectral Half-width: 1.6nm<\/p>\n

Reflectance Range, Resolution: 0-200%, 0.01%<\/p>\n

Light Source: Xenon lamp & LED<\/p>\n

UV Measurement: UV included, 400nm cut, 420nm cut, 460nm cut<\/p>\n

Measurement Time: Single mode < 2 seconds<\/p>\n

Measurement\/Illumination Aperture:<\/p>\n

Reflectance:<\/p>\n

XLAV: \u03a625.4mm \/ \u03a630mm<\/p>\n

LAV: \u03a615mm \/ \u03a618mm<\/p>\n

MAV: \u03a68mm \/ \u03a611mm<\/p>\n

SAV: \u03a63mm \/ \u03a66mm<\/p>\n

Users can customize apertures, the device automatically recognizes when switching apertures.<\/p>\n

Transmittance: \u03a617mm \/ \u03a625mm<\/p>\n

Sample Size: Unlimited sample width and height, thickness \u226450mm<\/p>\n

Long-term Repeatability: XLAV Chromaticity Value: Standard deviation within \u0394E*ab 0.015 (arbitrary temperature change 20\u2103 \u00b1 10\u2103, white tile measured every hour within 24 hours)<\/p>\n

Repeatability: XLAV Spectral Reflectance \/ Transmittance: Standard deviation within 0.1%; XLAV Chromaticity Value: Standard deviation within \u0394E*ab 0.015 (When a white tile is measured 30 times at 10-second intervals after white calibration)<\/p>\n

Inter-instrument Agreement: XLAV \u0394E*ab 0.2 (BCRA Series II, Average measurement of 12 tiles, at 23\u2103)<\/p>\n

Observer Angles: 2\u00b0, 10\u00b0<\/p>\n

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<\/p>\n

Languages: English, Russian, Spanish, Portuguese, Japanese, Thai, Korean, German, French, Polish, Chinese (Simplified and Traditional)<\/p>\n

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<\/p>\n

Color Spaces: CIE LAB, CIE LUV, LCh, Hunter Lab, Yxy, XYZ, Munsell, s-RGB, \u03b2xy<\/p>\n

Other Indices:<\/p>\n

WI (ASTM E313-00, ASTM E313-73, CIE\/ISO, AATCC, Hunter, Taube Berger, Stensby)<\/p>\n

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<\/p>\n

Color Difference Formulas: \u0394E*ab, \u0394E*CH, \u0394E*uv, \u0394E*cmc, \u0394E*94, \u0394E*00, \u0394E*ab(hunter), 555 shade sort<\/p>\n

Storage: 8GB<\/p>\n

Screen: 7-inch touch screen<\/p>\n

Operating System: Android<\/p>\n

Adapter: 12V\/3A<\/p>\n

Working Temperature: 5-40\u2103 (40-104F), relative humidity 80% (35\u2103) non-condensing<\/p>\n

Storage Temperature: -20-45\u2103 (-4-113F), relative humidity 80% (35\u2103) non-condensing<\/p>\n

Interface: RS-232, USB, USB-B<\/p>\n

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.<\/p>\n

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<\/p>\n

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<\/p>\n

Common Applications<\/strong><\/h2>\n

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Thanks to its wide wavelength range and ability to measure various physical states, the CHNSpec CS-821N is an indispensable analytical center in industries such as:<\/p>\n