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| Customization: | Available |
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| After-sales Service: | Online Remote Service |
| Warranty: | 12 Month |
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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.
High stability UV light source provides stable fluorescence measurement performance
1.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
It has two kinds of lighting sources: pulse xenon lamp and led
High stability UV light source provides stable fluorescence measurement performance
3.40 + 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
4. 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 | 821N |
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Illumination/ Viewing System
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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
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Grating Method
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Concave grating |
| Sphere diameter | 152mm |
| Wavelength range | 360nm-780nm |
| Wavelength interval | 10nm |
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Half width
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5nm |
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Reflectance Range Resolution
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0-200%, resolution 0.01% |
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Lighting source
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Pulsed xenon lamp and LED |
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UV measurement
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Including UV, 400nm cut, 420nm cut and 460nm cut |
| Measurement time |
SCI/SCE < 2s;SCI+SCE < 4s
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| 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 |
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Transmittance Sample Size
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No limit on sample width and height, thickness ≤50mm |
| Long term repeatability |
XLAV Chromaticity value: Standard deviation within ΔE*ab 0.015 (20ºC±10ºC arbitrary temperature
change, white tile is measured every hour within 24 hours)
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| 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 |
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Inter-Instrument Agreement
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XLAV ΔE*ab 0.2 (BCRA Series II, Average measurement of 12 tiles, at 23ºC)
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| Observer | 2 ° and 10 ° |
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Illuminants
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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)
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Display
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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
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| 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
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| 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 |
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Accessories
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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 |