Introduction

Benchtop spectrophotometer WS-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.

Features

It is an intelligent, convenient and precise spectrophotometer

Configure Android operating system and rotatable capacitive touch screen

Open transmission sample warehouse with various accessories

Free switching caliber, free computer management software

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

Specification

Model WS-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, 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

Interface RS-232、USB、USB-B

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