YY-3A Intelligent Digital Whiteness Meter
Used for the determination of whiteness and other optical properties of paper, paperboard, paperboard, pulp, silk, textile, paint, cotton chemical fiber, ceramic building materials, porcelain clay clay, daily chemicals, flour starch, plastic raw materials and other objects.
FZ/T 50013-2008，GB/T 13835.7-2009，GB/T 5885-1986、JJG512、FFG48-90.
1. Spectral conditions of the instrument are matched by an integral filter;
2. The instrument adopts microcomputer technology to achieve automatic control and data processing, and can be connected to the printer;
3.The instrument with a backup electrical equipment, often the data will not be lost due to power or shutdown;
4. The instrument adopts switching power supply, which has the advantages of high efficiency, small size, light weight, strong anti-interference ability, wide application range of power supply, etc.
5. The data of the instrument can be set on the angular touch disk;
6. The measurement data of the instrument is directly displayed by the LED display;
7.The instrument performance is stable, accurate measurement accuracy, high automation accuracy, the operation is very convenient, fast and reliable.
1. Determination of ISO whiteness (i.e. R457 blue light whiteness). For the fluorescent whitening sample, the fluorescence whiteness emitted by the fluorescent material can also be determined
2. The measurement of transparency (T) and the object's brightness stimulus value (V110)
3. Determine the scattering coefficient and absorption coefficient of light of paper
4. In line with the D /0 illumination observation geometrical conditions stipulated in ISO2469 international standard, the integrating ball diameter is 150mm, the diameter of the test hole is 32mm, and the gloss absorber is equipped to eliminate the influence of the sample mirror reflection light
5. The relative spectral power distribution of R457 optical system: the main peak wavelength is 457mm, and the half-wave width is 44mm. The spectral power distribution of RY optical system conforms to the Y10 stimulus condition of CIE standard D65/10°
6. The precision of the instrument is in line with the technical requirements of JJG512-87 "whiteness meter", the first grade whiteness meter, and the requirements of FFG(light industry)48-90 "reflection photometer"
Zero drift: ≤0.2%
Indicated value drift: ≤0.5%
Indicated value error: ≤1.0%
Repeatability error: ≤0.2%
Power supply: 220+10%, 50Hz
Dimensions: 370mm×190mm×380mm(L×W×H)
Net weight: 12 kg
