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Bench top Spectrophotometer

Bench-top Spectrophotometer CS-820N

CN-820N is newest model of bench-top spectrophotometer.It is all-in-one model and can measure both reflectance and transmittance. It can measure both opaque and transparent materials such as paint, textile, plastic, master batches, printing materials,etc.

Part 1. Introduction

CS-820N is an smart, simple operate and high precise spectrophotometer. It adopts 7 inches touch screen, full wavelength range, Android operate system. Illumination : reflectance D/8° and transmittance D/0°(UV included / UV excluded), high accuracy for color measurement, large storage memory, PC software, because of above advantages, it is used in laboratory for color analysis and communication.

Part 2. Instrument Advantages

1). Adopts reflectance D/8° and transmittance D/0° geometry to measure both opaque and transparent materials.

2). Dual Optical Paths Spectrum Analysis Technology

This technology can simultaneous access to both measurement and instrument internal environmental reference data to ensure instrument accuracy and long-term stability.

3). Compatible with SCI/SCE measurement, Support SCI+SCE Measurement

Instrument adopts D/8 geometry which is highly recommends by CIE (International Commission on Illumination) to meet color measurement of different industries. It supports both SCI (specula component included) and SCE (specular component excluded) mode for better detect of color change. Fast SCI+SCE measurement, test time only need less than 4s.

4). Rotatable Touch Screen with Android Operate System

Screen position and direction can be adjusted according to the instrument test methods.

5). Open Transmittance Measurement Area, no limit on sample size

6). Different Kinds of Accessories for simple measurement

It contains 15 kinds of standard and 12 kinds of optional accessories to measure different kinds of materials

7). Accessory Drawer to Protect and Store Accessories

8). Switchable Reflectance Apertures (30mm,18mm,11mm and 6mm)

9). Four Kinds of UV Test Modes for Fluorescence Material Measurement

Part 3. Bench-top Spectrophotometer Structure

Part 5. More Spectrophotoemter Pictures

Part 6. Packing List

Illumination/ Viewing System

Reflection: d/8(Diffused illumination, 8 degree viewing)

Simultaneous measurement of SCI/SCE (ISO7724/1, CIE No.15, ASTM E1164, ASTM-D1003-07, DIN5033 Teil7,JIS Z8722 Condition C standard)

Transmittance d/0(Diffused illumination, 0 degree viewing )


Silicon Photodiode Array

Grating Method

Concave Grating

Sphere Diameter




Wavelength Pitch


Half Band Width


Reflectance Range




Light Source

Pulse Xenon Lamp and LED

UV Measurement

Include UV, 400nm cut, 420nm cut, 460nm cut

Measurement Time

SCI/SCE < 2s

SCI+SCE < 4s

Measurement Aperture

Reflectance: XLAV Φ30mm, LAV 18mm,MAV Φ11mm,SAV Φ6mm


(Auto aperture size recognition)

Transmittance Sample Size

No limit on sample width and height, thickness 50mm


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 5-second intervals after white calibration

Inter-Instrument Agreement

XLAV ΔE*ab 0.15 (BCRA Series II, Average measurement of 12 tiles, at 23)





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

Viewing Angles

2° and 10°

Color Spaces

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(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

Color Difference

ΔE*ab, ΔE*CH, ΔE*uv, ΔE*cmc, ΔE*94, ΔE*00, ΔE*ab(hunter),555 shade sort

Storage Memory

8 GB U Disk for data storage and transfer

Screen Size

7 Inches Touch Screen



Operate Temperature

5-40(40-104F), relative humidity 80% (at 35) no condensation

Storage Temperature

-20-45(-4-113F), relative humidity 80% (at 35) no condensation


Power Adaptor, USB Cable, fixture for transmittance, U disk (PC software), Black Calibration Cavity, White and Green Calibration Tile,0% Calibration Tile (transmittance), Reflectance Test Support,30mm,18mm,11mm and 6mm apertures, reflectance sample fixture, Glass Cell 40x10mm

Optional Accessories

Heating Fixture for Transmittance, Vertical Support and Pneumatic ram for downward measurement, Reflectance fixture for small size sample, Reflectance Glass Cell Support, Corrosion-Resistant Protective Plate (non-removable), Sample Holder for Fiber, Film Fixture, Transmittance Fixture for Small Aperture, Trolley Case, European Standard Plug, American Standard Plug


USB, USB-B and RS-232

Instrument Size




Other Functions

1. Camera to view measurement area;

2. Support horizontal, vertical and downward measurement method (need optional accessories to support for downward measurement);

3. Auto humidity and temperature compensation function.

Bench-top Spectrophotometer CS-820N Application Examples

1). Plastic Color Measurement

2). Chemical Powder Color Measurement

3). Petroleum and Oil Color and Transmittance Measurement

4). Textile and Yarn Color Measurement

5). Master Batches and other Pellet Material Color Measurement

6). Printing Ink and Packing Material Color Measurement