• 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

Benchtop CS-821N Color Matching Spectrophotometer For Precise Measurements

Place of Origin China
Brand Name CHN spec
Certification CE
Model Number CS-821N
Minimum Order Quantity 1
Price negotiable
Packaging Details Carton box with foam package
Delivery Time 5-7 days
Payment Terms L/C, T/T, Western Union, MoneyGram
Supply Ability 1000 per month

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Whatsapp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

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Product Details
Storage Temperature And Humidity Range -20 ~ 45 ° C, Relative Humidity Below 80% (at 35 ° C), No Condensation Storage Space 8GB
Operating Temperature And Humidity Range 5 ~ 40 ° C, Relative Humidity Below 80% (at 35 ° C), No Condensation Sensor Silicon Photodiode Array
Color Space L*a*b,L*C*h,Hunter Lab,Yxy,XYZ Operating System Android
Interface RS-232、USB、USB-B Observer 2 ° And 10 °
Power Supply DC Stabilized Power Supply Colour-difference Formula ΔE*ab,ΔE*CH,ΔE*uv,ΔE*cmc,ΔE*94,ΔE*00,ΔEab(Hunter),555 Hue Classification
Screen Size 7-inch Touch Screen Grating Method Concave Grating
High Light

Intelligent Benchtop Color Spectrophotometer


Precise Measurements Benchtop Spectrophotometer


DC Power Supply Color Matching Spectrophotometer

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Product Description


CS-821N is a highly stable benchtop spectrophotometer; the newly upgraded auto-calibration technology ensures excellent stability of the instrument for long-term use and measurement, even in the case of drastic environmental changes. Benchtop spectrophotometer cs-821N has two illumination sources: pulsed xenon lamp and led; with 24 standard light sources and 40+ measurement indicators, it can simulate and calculate color data under various light sources and color indicators.

       ·Automatic calibration

  ·Excellent long-term stability

  ·It has two kinds of lighting sources: pulse xenon lamp and led

  ·Support SCI + SCE simultaneous rapid measurement

  ·Short term repeatability:Δ E * AB ≤ 0.015

  ·Long term repeatability: Δ E * AB ≤ 0.015


Technical Parameters

Model CS-821N

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 )




Silicon Photodiode Array

Grating Method

Concave grating
Sphere diameter 152mm
Wavelength range 360nm-780nm
Wavelength interval 10nm

Half width



Reflectance Range Resolution


0-200%, resolution 0.01%

Lighting source

Pulsed xenon lamp and LED

UV measurement

Including UV, 400nm cut, 420nm cut and 460nm cut
Measurement time

SCI/SCE < 2s;SCI+SCE < 4s

Measurement / illumination aperture

Reflection: xlav ΦΦ 30mm ,LAV ΦΦ 18mm

MAV Φ 8mm/ Φ 11mm ,SAV Φ 6mm

(Auto aperture size recognition)

Aperture for transmission: Φ 25mm



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)



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 °






English, Russian, Spanish, Portuguese, Japanese, Thai, Korean, German, French, Polish,Chinese (simple and traditional)




Reflectance and Transmittance graph/value, color value, color difference values, pass/fail, color simulation, color assessment, haze, liquid chromaticity values, color tendency

Color space L*a*b,L*C*h,Hunter Lab,Yxy,XYZ
Color index


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



Colour-difference formula ΔE*ab,ΔE*CH,ΔE*uv,ΔE*cmc,ΔE*94,ΔE*00,ΔEab(Hunter),555 hue classification
Storage space 8GB
Screen size 7-inch touch screen
Operating system Android
Power Supply

DC stabilized power supply

Operating temperature and humidity range 5 ~ 40 ° C, relative humidity below 80% (at 35 ° C), no condensation
Storage temperature and humidity range -20 ~ 45 ° C, relative humidity below 80% (at 35 ° C), no condensation


Power adapter, data cable, transmission fixture, software USB flash disk, black cavity,

white board, green board, 0% calibration shading cover (820n attached),

30mm diameter board,18mm diameter board, 11mm diameter board,

6mm diameter board,support table, cuvette, damping handle



Optional Accessories

Heating transmission fixture (including control circuit), vertical support,

pneumatic ejector rod(including control circuit), small sample clamping accessories,

pull rod box,European standard plug and American standard plug

Reflective cuvette support, corrosion-resistant protective plate (non removable),

fiber test box, film clamp and micro transmission clamp



Interface RS-232,USB,USB-B
Other function

1. Camera viewfinder positioning;
2. The instrument can measure laterally, upward and downward (using accessories);
3. Automatic temperature and humidity compensation function



※After the instrument is calibrated, measure the white correction plate 30 times at an interval of 5 seconds, and measure the standard deviation of the results with xlav caliber

※※ Based on the average of xlav caliber measurements of 12 color plates of BCRA series at 23 ° C



Packing List

Standard accessories

Instrument * 1, power adapter * 1, data line * 1, transmission fixture * 1, software USB flash disk * 1, black cavity * 1, white board * 1, green board * 1, 0% calibration shading cover (820n attached) * 1, 30mm diameter board * 1, 18mm diameter board * 1, 11mm diameter board * 1, 6mm diameter board * 1, support table * 1, cuvette * 1, Zuni handle * 1



Heating transmission fixture (including control circuit), vertical support, pneumatic ejector rod (including control circuit), small sample clamping accessories, reflecting cuvette support, corrosion-resistant protective plate (non removable), fiber test box, film fixture, micro transmission fixture, pull rod box, European standard plug and American standard plug