Benchtop spectrophotometer cs-820N is an intelligent, convenient and accurate spectrophotometer with TFT true color 7-inch capacitive touch screen, full optical spectrum and Android operating system. It has two illumination modes: pulsed xenon lamp and LED. it is compatible with reflection D/8 and transmission D/0 measurement modes. It can include UV or exclude UV measurement. It measures accurate and stable colors, has large storage capacity, and powerful expansion function on PC side. It can be used for laboratory color analysis and transmission.

Inter station difference：dE<0.15(Xlav caliber)

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

There are 24 kinds of standard light sources and more than 40 kinds of measurement indexes

Temperature and humidity operation compensation function

• It is an intelligent, convenient and precise spectrophotometer

  Compatible with transmission and reflection measurements
  
  Adopt dual optical path spectral analysis technology to ensure the accuracy and long-term stability of the instrument
  
  Adopt D/8 lighting observation conditions recommended by the International Commission on Illumination to meet the measurement needs of various industries; compatible with SCI/SCE measurement and support SCI+SCE simultaneous fast measurement

• Configure Android operating system and rotatable capacitive touch screen

  The instrument app and 7-inch large screen touch screen based on Android operating system are as smooth and convenient as daily operation of mobile phones, making it easier to operate
   

• Open transmission sample warehouse with various accessories

  The open transmission sample bin is not limited by the sample size, and even large-size films can be easily handled

  There are 15 standard accessories and 12 options to meet the test requirements in different scenarios

  The instrument is equipped with accessories drawer to facilitate the protection and storage of accessories

• Free switching caliber, free computer management software

  There are four kinds of measuring calibres. The instrument automatically identifies the calibre and adjusts the optical path, saying goodbye to manual operation

  Configure free computer management software to process data efficiently

  Four UV measurement modes make the fluorescence invisible
   

  Model	CS-820N
  Illumination / Viewing system	Reflection: d/8(Diffused illumination, 8 degree viewing) Simultaneous measurement of SCI/SCE (CIE No.15, BG/T 3978, GB/T 2893, BG/T 18833, ISO7724/1,DIN 5033, ASTM E1164, Teil7,JIS Z8722 Condition C standard) Transmittance d/0(Diffused illumination, 0 degree viewing )
  Sensor	Silicon photodiode array
  Spectroscopic mode	Concave grating
  Sphere diameter	152mm
  Measurement wavelength range	360nm-780nm
  Measurement wavelength Pitch	10nm
  Half wave width	1nm
  Reflectivity range resolution	0-200%, 0.01%
  Lighting source	Pulsed xenon lamp and LED
  UV	Including UV, 400nm cut-off, 420nm cut-off and 460nm cut-off
  Measurement time	SCI/SCE < 2s SCI+SCE < 4s
  Measurement aperture	Reflectance: XLAV Φ25.4mm/Φ30mm, LAVΦ15mm/18mm,MAVΦ8mm/Φ11mm,SAVΦ3mm/Φ6mm (Aperture size can be custom made) Auto aperture size recognition Transmittance:Φ17mm/Φ25mm
  Transmission measurement specification	No limit on sample width and height, thickness ≤50mm
  Long term repeatability	/
  Repeatability※	XLAV Spectrum Reflectance/Transmittance: standard deviation within 0.1% XLAV Chromaticity value: Standard deviation within ΔE*ab 0.02 * When a white calibration plate is measured 30 x at 5-second intervals after white calibration
  Inter device difference※※	XLAV ΔE*ab 0.25 (BCRA Series II, Average measurement of 12 tiles, at 23℃)
  Standard observer	2 ° standard observer and 10 ° standard observer
  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	Simplified Chinese, Spanish, Spanish, Spanish, Portuguese, Portuguese
  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
  Other Indices	WI(ASTM E313-00,ASTM E313-73,CIE/ISO,AATCC,Hunter,Taube,Berger Stensby),YI(ASTMD1925, ASTM E313-00,ASTM E313-73),Tint(ASTM E313-00),Isochromatic index milm, color fastness, color fastness, ISO brightness, R457, a density, t density, e density, m density, APHA / Hazen / Pt Co, Gardner index, Saybolt index, ASTM Color, haze, total transmittance, hiding power, force, strength
  Color 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-inches  touch screen
  Operating system	Android
  Power Supply	DC regulated 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, American standard plug, reflecting cuvette support corrosion protection plate (non removable), fiber test box, film fixture and micro transmission fixture
  Interface	RS-232、USB、USB-B
  Other	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