DW-WSF

Spectroscopical Color photometer

Characteristics:

l Wide application range and easy-to-operate feature.

l Measure reflection color and transmission color of objects and can test chromaticity, whiteness and color difference between two objects or two kinds of liquid.

l Only accept d/0 lighting specified by CIE.

l Display reflectance and transmittance of objects or liquid within the scope of visible light wave (400nm-700nm), and generate a spectral curve on reflectance and transmittance of objects or liquid, which greatly facilitates analysis on object color.

l Wide used in such industries as textile, dye, printing and dyeing, coating, paint, paper making, building materials, food, and printing.

Specifications:

l Lighting conditions: d/0

l Spectrum conditions: overall response is equivalent to tristimulus values X, Y, and Z calculated in corresponding functions under GB3978 standard illuminant D65, A, C and 10°, 2° view of field.

l RS232

l Measurement window: Ø20mm   

l Wavelength range: 400nm~700nm;  Accuracy: ±2nm

l Accuracy of spectrum transmittance (%):±1.5

l Repeatability: σ u (Y) ≤0.5, σ u (x),σ u (y) ≤0.003

l Instrument stability: ΔY≤0.6

l Accuracy: ΔY≤2, Δx,Δy≤0.02

l Palette system:

l Color: X, Y, Z; Y, x, y; L*, a*, b*; L, a, b; L*, u*, v*; L*, c*, h*

l Color difference: Δ E (L*a*b*); ΔE (Lab); ΔE (L*u*v*);  ΔL*, ΔC*, ΔH*

l Whiteness: Gans whiteness

           Blu-ray whiteness: W=B

           Tabble: W=4B-3G