CHN SPEC CS-820P Benchtop Spectrophotometer (d/8, ΔE*ab≤0.02, 360nm-780nm)

CHN SPEC CS-820P Benchtop Spectrophotometer (d/8, ΔE*ab≤0.02, 360nm-780nm)

The CHNSpec CS-820P Benchtop Spectrophotometer is an intelligent and comprehensive color analysis device, designed to meet the highest standards in research and development (R&D) laboratories and quality control (QC) processes. The combination of high accuracy, wide wavelength range, and the ability to measure various physical states makes the CS-820P an excellent analytical solution with a highly reasonable investment cost.

Technical Specifications:

Illumination / Observation System:

Reflectance: d/8 (diffuse illumination, 8° viewing angle), Transmittance: d/0 (diffuse illumination, 0° viewing angle);

Simultaneous measurement of SCI (Specular Component Included) / SCE (Specular Component Excluded);

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

Sensor: Silicon photodiode

Grating Method: Concave grating

Integrating Sphere Diameter: 152mm

Wavelength Range: 360nm-780nm

Wavelength Interval: 10nm

Spectral Half-width: 1nm

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/Illumination Aperture:

Reflectance:

XLAV: Φ25.4mm / Φ30mm

LAV: Φ15mm / Φ18mm

MAV: Φ8mm / Φ11mm

SAV: Φ3mm / Φ6mm

Users can customize apertures, the device automatically recognizes when switching apertures

Transmittance: Φ17mm / Φ25mm

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

Long-term Repeatability: /

Repeatability: XLAV Spectral Reflectance / Transmittance: Standard deviation within 0.1%; XLAV Chromaticity Value: Standard deviation within ΔE*ab 0.02 (When a white tile is measured 30 times at 5-second intervals after white calibration)

Inter-instrument Agreement: XLAV ΔE*ab 0.25 (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: Simplified Chinese, Spanish, Portuguese

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/Hazen/Pt-Co, Gardner index, Saybolt index, ASTM color, Opacity, Total Transmittance, Hiding power, 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: Regulated DC power supply

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

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

Standard Accessories: Power adapter, data cable, transmittance fixture, USB flash disk (software), black calibration cavity, white board, green board, 0% calibration shade (included with 820N), 30mm aperture plate, 18mm aperture plate, 11mm aperture plate, 6mm aperture plate, support table, cuvette, damping handle

Optional Accessories: Heating transmittance fixture (including control circuit), vertical support, pneumatic push rod (including control circuit), small sample fixture, trolley case, European standard plug, American standard plug, reflectance cuvette support, corrosion-resistant protective plate (non-removable), fiber test box, film fixture, and micro transmittance fixture

Interface: RS-232, USB, USB-B

Other Functions:

1. Camera viewfinder positioning;

2. The device can measure horizontally, upwards, and downwards (using accessories);

3. Automatic temperature and humidity compensation function

Outstanding Features

Multi-State Measurement (Reflectance & Transmittance): The CS-820P features a large-sized sample measurement chamber, allowing the device to accurately measure not only solid, opaque materials (reflectance) but also perfectly analyze transparent, semi-transparent materials, and liquids (transmittance).

High Accuracy and Repeatability: With a very low repeatability error margin (ΔE*ab ≤ 0.02), the device provides highly stable and reliable color data. This is especially important for evaluating color deviation between product batches and building a standard color database for the factory.

Simultaneous SCI and SCE Acquisition: The advanced optical system can simultaneously acquire SCI data (true color, used for color matching) and SCE data (visually perceived color, affected by surface gloss) in a single measurement operation, optimizing time and providing a comprehensive view of material characteristics.

Accurate Analysis of Fluorescent Materials: Equipped with a full-band pulsed Xenon light source integrated with UV, the CS-820P excellently handles samples containing optical brightening agents (OBA) or luminescent materials, ensuring unbiased results.

Automatic Calibration and Dual Optical Path: Smart compensation technology combined with a dual optical system helps the device continuously monitor changes in the light source and environment (temperature, humidity), automatically adjusting to maintain the most ideal measurement state.

Common Applications

The flexible switching capability between reflectance and transmittance measurement helps the CHNSpec CS-820P shine in many industries:

• Paints, Inks, and Coatings: Evaluating color consistency, controlling the quality of coating films, and measuring coverage/opacity.
• Plastics and Film Packaging: Color analysis of plastic pellets, inspecting the transparency and haze of PE, PET films, or acrylic plastic sheets.
• Chemicals, Pharmaceuticals, and Food: Color measurement of various chemical solutions, essential oils, syrups, colored beverages, and liquid/paste foods.
• Textiles and Paper: Evaluating dyeing quality, measuring the whiteness of paper, and fabrics using brightening agents.