YT-48A Brightness Colorimeter

Function

The brightness colorimeter is the professional instrument to test the object of the whiteness ,yellowness,chromatic aberration,opacity, transparency, light scattering coefficient,optical absorption coefficient, and ink absorption value.It is widely applied in paper, cardboard textile, painting ,chemical building materials, plastic , cement ,food, salt, ceramics cosmetic etc.

The specific is the following:

     Measure the color of object , report diffuse reflectance factor Rx, Ry, Rz

     stimulus value X10, Y10, Z10;chromaticity coordinate x10, y10, z10

     lightness L*;chrominance a*, b*;chromaticity C*ab;hue angle h*ab;dominant
wavelength λd, excited purity Pe, color difference ΔE*ab, lightness difference

Δ L*, chromaticity difference ΔC*ab, hue difference ΔH*ab, Hunter system L, a,b

        Measure ISO(R457)and Rz

        Measure CIE (W10 and Tw10)

        Measure .ceramic’s whiteness

        Measure the wihteness of building materials and non-metallic mineral products

        Measure Yellowness YI

        Measure Hunter whiteness

        Measure opacity op

        Measure transparency T

        Measure light scattering coefficient S

        Measure optical absorption coefficient A

        Measure ink absorption value

Key Features

        Has excellent appearance and compact structure ,and advanced circuit design can

ensure accurate and stable measurement data.

        Simulate D65 illuminator to illuminate. Adopted CIE 1964 supplementary standard

colorimetric system and CIE 1976 (L*a*b) color space and color difference formula.

        Adopted d/o illuminating--geometrical viewing conditions.Diameter of the globe of

diffusion is 150mm and diameter of the testing hole is 30mm.Light absorber is provide to eliminate the effect of mirror reflection.

        Adopted large-screen high resolution LCD modules.English display and prompt

steps can show the results of measurement and statistics. Good human-machine interface makes the instrument easy to operate.

        Added the printer and used the imported Thermal Printer , no need to use ink and colored tape, no noise and fast speed.

        Equipped with RS232 interface ,can communicate with the computer software

        Has power-off protection, Correct data would not lose

        can store 9 reference samples ( sample or data)

Key

Technical Parameters

Power supply: 220V±10%, 50Hz

Indication accuracy: chromaticity coordinate is 0.0001 others are 0.01

Data’s stability: ≤0.01 within 30min

Sample size: Test plate diameter should not be less than 30mm while sample

thickness should not exceed 40mm

External dimension:420(L)×310W)×460(H)mm

Net weight :≤16.0 kg

Gross weight:≤22.5 kg