Whiteness and colormeter

Whiteness and color meter is widely applied in papermaking, fabric, printing, plastic, ceramic and porcelain enamel, construction material, grain, salt making and other testing department that need to test whiteness yellowness, color and chromatist.

Main Features:

Menstruate many times and give series of arithmetic measuring result; Digital display and the result can be printed out;

1.Test objects color ,diffuse reflectance factor RX、RY、RZ; stimulus value X10、Y10、Z10,  chromaticity coordinate X10、Y10，Lightness L*，Chromaticity a*、b*，Chroma C*ab，hue angle h*ab， dominant wavelengthλd;  ChromatistΔE*ab; lightness  difference  ΔL* ; Chroma difference ΔC*ab;  Hue difference H*ab; Hunter system L、a、b；

2. Test yellowness YI;

3. Test opacity OP;

4 Test light scatting coefficient S;

5. Test light absorption coefficient. A;

6. Test transparencies;

7. Test Ink absorption value;

8. Reference can be practicality or data; the meter can maximum store ten references’ information;

9. Take the average value; digital display and the test results can be printed out;

10. The testing data will be stored while powering off for a long time.

Technical parameter   

1.Simulate D65 illumination lighting. Adopt CIE1964 supplement color system and CIE1976 (L * a * b *) color space color difference formula.

2.Adopt d / o observation geometry lighting conditions. Diffusion ball diameter of 150 mm, 25 mm diameter of test hole, with light absorbers to eliminate the sample mirror reflected light.

3.Repetitive: δ(Y10)＜0.1,δ(X10.Y10)＜0.001

4.Indication accuracy: △Y10＜1.0,△X10(Y10) ＜0.01.

5.Sample size: test plane no less than Φ30 mm, thickness no more than40 mm.

6.Power: 170-250V, 50HZ, 0.3A.

7.Working situation: Temperature 10-30 ℃, relative humidity no more than 85%.

8.Sample size: 300×380×400mm

9.Weight: 15 kg.

Main fixtures

1.PT103A brightness meter;

2.A power line; a black trap;

3.Two pieces of no fluorescent white standard plate;

4.One piece of fluorescent whitening standards board;

5.Four light bulbs;

6.Printing paper 4 volumes;

7.A Power sample;

8.Certification;

9.Specification;

10.Packing list;

11.Warranty;

12.Optional: constant pressure powder sampler.