Sell Brightness Meter

Description

Introduction
Brightness Meter is widely applied in papermaking, fabric, printing, plastic, ceramic and porcelain enamel, construction material, chemical industry, salt making and other testing department that need to test whiteness. DRK**3A brightness meter also can test the paper’s transparency, opacity, light scatting coefficient and light absorption coefficient.
 
Characteristics
1Test ISO whiteness (R**7 whiteness) .It can also determine the fluorescent whitening degree of phosphor emission.
2 Test of lightness tristimulus values (Y*0), opacity and transparency. Test light scatting coefficient and light absorption coefficient.
3 Simulate D*6. Adopt CIE***4 supplement color system and CIE***6 (L * a * b *) color space color difference formula. Adopt d / o observing geometry lighting conditions. The diameter of diffusion ball is **0mm. The diameter of test hole is *0mm or *9mm. Eliminate the sample mirror reflected light by light absorbers.
4 Fresh appearance and compact structure; Guarantee the accuracy and stability of measured data with advanced circuit design.
5 LED display; Prompt operation steps with Chinese. Display statistical result. Friendly man-machine interface makes the operation simple and convenient.
6 Instrument is equipped with a standard RS**2 interface so it can cooperate with the microcomputer software to communicate.
7 Instruments have a power-off protection; the calibration data is not lost when the power is cut off.
 
Application
Brightness Meter is widely applied in papermaking, fabric, printing, plastic, ceramic and porcelain enamel, construction material, chemical industry, salt making and other testing department that need to test whiteness. PN**8B brightness meter also can test the paper’s transparency, opacity, light scatting coefficient and light absorption coefficient.
 
Standards

1. In accordance with GB******3: Standard lighting and lighting and observation conditions.
2. Simulate D*6. The diffuse diameter is **0mm and test whole diameter is *0mm or *9mm. It uses light absorber to eliminate the influence caused by the specimen’s mirror reflecting light.
3. R**7 whiteness optical spectral power distribution system in the peak wavelength **7nm, FWHM *4nm, RY*0 optical system in line with the GB******3: object color measurement.
4. GB******7: Pulp, paper and paperboard diffuse reflectance factor assay (d/o method).
5. GB******7: paper and paperboard whiteness assay (d/o method).
6. ISO***0：paper and board Blu-ray diffuse reflectance factor method (ISO brightness);
7. GB***4.2：Pulp whiteness assay
8. GB***0：Industrial potato starch assay
9. GB***3：plastics whiteness assay
10. GB****5.2：Salt making industry general test method; whiteness assay
11. GB******8：Paper opacity determination
12. ISO***1：paper and cardboard opacity determination
13. GB*******9：paper and pulp light scatting coefficient and light absorption coefficient determination
14. GBT/***0 construction material and non-metallic mineral products whiteness assay
15. GB****9 Citric acid whiteness and detection method
16.  GB****1：Paper and paperboard Ink absorption determination
17. GB***9：Plastic yellow index. test method

1. zero drift: ≤ 0.1 %ï¼›
2. indication drift: ≤ 0.1 %ï¼›
3. indication error: ≤ 0.5 %ï¼›
4. repeatability error: ≤ 0.1 %ï¼›
5. specula reflection error: ≤ 0.1 %ï¼›
6. sample size: the test plane not less than φ*0mm, the thickness of no more than *0 samples
7. Power: AC **0V ± *0%, *0HZ, 0.4A.
8. work environment: Temperature 0 ~ *0 ℃, relative humidity of not more than *5%
9. size and weight: **5 × **4 × **0 (mm), *6 kg

1. DRK**3A 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.