• Hangzhou CHNSpec Technology Co., Ltd.
    Yulita Jocom
    Thanks so much for your support on products quality and provide competitive price to help us expand our local marketing during the past 2 years.
  • Hangzhou CHNSpec Technology Co., Ltd.
    Johanna Brathwaite
    Spectrophotometer really gives us a lot of help on plastic color quality control.
  • Hangzhou CHNSpec Technology Co., Ltd.
    Muhammad Imran
    Instrument and software works perfect. Thank you so much for your great customer service.
Contact Person : Winnie Luo
Phone Number : +86 13750873347
Whatsapp : +8613750873347

High Accuracy With Wavelength 360nm-780nm Spectrophotometer 821N

Place of Origin China
Brand Name CHN spec
Certification CE
Model Number CS-821N
Minimum Order Quantity 1
Price negotiable
Delivery Time 5-7 days
Payment Terms L/C, D/A, D/P, T/T, Western Union
Supply Ability 1000 per month

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Product Details
Size 430x240x260mm Wavelength Range 360-780nm
Sensor Dual Light Path Sensor Array Reflectivity Resolution 0.01%
Reflectance Range 0~200% Interface USB/RS-232
High Light

Dual Light Path Sensor Array Spectrophotometer


821N Spectrophotometer


0.01% Reflectivity Resolution Spectrophotometer

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Product Description

821N Spectrophotometer

China CS-821N Spectrophotometer High Repeatability Color Measurement device for Plastic Textile

High Repeatability Bench-top Spectrophotometer CS-821N

CS-821N is the bench-top spectrophotometer with excellent repeatability. Instrument is with auto calibration function to guarantee the short term and long term repeatability even after drastic changes in the environment.
Part 1. Instrument Advantage
1. Automatic calibration
2. Excellent long-term repeatability, ensure excellent measurement repeatability even after environment changes
3. It has two lamps: pulsed xenon and LED
4. 24 kinds of illuminants and more than 40 measurement indices
5. Temperature and humidity compensation function
6. Seven -inch touch screen, Android operate system
7. Dual optical paths spectrum analysis technology
8. Support SCI+SCE simultaneous rapid measurement
Part 2. Technical Data

Model High Repeatability Bench-top Spectrophotometer CS-812N
Illumination/ Viewing System

Reflectance: d/8(Diffused illumination, 8 degree viewing)
Simultaneous measurement of SCI/SCE, conform 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(Diffused illumination, 0 degree viewing )

Sensor Silicon Photodiode Array
Grating Method Concave Grating
Sphere Diameter 152mm
Wavelength 360-780nm
Wavelength Pitch 10nm
Half Band Width 5nm

Reflectance Range


Light Source Pulse Xenon Lamp and LED
UV Measurement Include UV, 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
(Auto aperture size recognition)

Transmittance Sample Size No limit on sample width and height, thickness ≤50mm
Long Term Repeatability XLAV Chromaticity value: Standard deviation within ΔE*ab 0.015 (20℃±10℃ arbitrary temperature change, white tile is measured every hour within 24 hours)
Repeatability XLAV Spectrum Reflectance/Transmittance: standard deviation within 0.1%
XLAV Chromaticity value: Standard deviation within ΔE*ab 0.015 * When a white calibration plate is measured 30 x at 10-second intervals after white calibration
Inter-Instrument Agreement XLAV ΔE*ab 0.2 (BCRA Series II, Average measurement of 12 tiles, at 23℃)
Observer 2° and 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
Language English, Russian, Spanish, Portuguese, Japanese, Thai, Korean, German, French, Polish, Chinese (simple and traditional),
Display Reflectance and Transmittance graph/value, color value, color difference values, pass/fail, color simulation, color assessment, haze, liquid chromaticity values, color tendency
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, Haze, Total Transmittance, Opacity, Color Strength

Color Difference ΔE*ab, ΔE*CH, ΔE*uv, ΔE*cmc, ΔE*94, ΔE*00, ΔE*ab(hunter),555 shade sort
Storage Memory 8 GB U Disk for data storage and transfer
Screen Size 7 Inches Touch Screen
Operate System Android
Power Adaptor 12V/3A
Operate Temperature 5-40℃(40-104F), relative humidity 80% (at 35℃) no condensation
Storage Temperature -20-45℃(-4-113F), relative humidity 80% (at 35℃) no condensation
Accessories Power Adaptor, USB Cable, fixture for transmittance, U disk (PC software), Black Calibration Cavity, White and Green Calibration Tile, Reflectance Test Support,30mm,18mm,11mm and 6mm apertures, reflectance sample fixture, Glass Cell 40x10mm
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
Interface RS-232,USB,USB-B
Other Function

1. Camera to view measurement area;
2. Support horizontal, vertical and downward measurement method (need optional accessories to support for downward measurement);
3. Auto humidity and temperature compensation function.

Part 3. Warranty
Instrument warranty is one year for whole instrument.
High Accuracy With Wavelength 360nm-780nm Spectrophotometer 821N 0High Accuracy With Wavelength 360nm-780nm Spectrophotometer 821N 1High Accuracy With Wavelength 360nm-780nm Spectrophotometer 821N 2High Accuracy With Wavelength 360nm-780nm Spectrophotometer 821N 3High Accuracy With Wavelength 360nm-780nm Spectrophotometer 821N 4