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

Maintain the long-term stability of the instrument

Automatic calibration

Temperature and humidity operation compensation function

Dual optical path spectral analysis technology

Support SCI + SCE simultaneous rapid measurement

Excellent long-term stability, which can ensure excellent measurement stability even after rapid environmental changes

 

Stable lighting source

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

High stability UV light source provides stable fluorescence measurement performance

 

40 + color measurement indicators

24 standard light sources, 40 + measurement indicators

The instrument can simulate and calculate the color measurement data under a variety of light sources and measurement indexes

 

Management software, double guarantee

7-inch touch screen, Android operating system, the instrument can be used alone, and the measurement data can be saved on the instrument

Free computer management software makes data processing more efficient
 

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 )
Sensor	Silicon Photodiode Array
Grating Method	Concave grating
Sphere diameter	152mm
Wavelength range	360nm-780nm
Wavelength interval	10nm
Half width	5nm
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）
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 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
Accessories	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