Product Name: DN-B Whiteness Meter Product Category: Intelligent Whiteness Tester Product Description: The functions are as follows:
ISO Brightness (R457 whiteness) can be measured, and for fluorescent whitening samples, the fluorescence whitening produced by the emission of fluorescent substances can also be determined.
Measure the brightness stimulus value Y10. Measure the opacity. Measure transparency. Measure the light scattering coefficient and absorption coefficient.
This instrument meets the following standards:
This instrument complies with GB3978-83: Standard Illumination Bodies and Illumination Observation Conditions. D65 lighting body illumination. Using d/o illumination to observe geometric conditions (ISO2469). The peak wavelength of the spectral power distribution of the R457 whiteness optical system is 457nm, with a full width at half maximum of 44nm; the RY optical system complies with GB3979-83: Object Color Measurement Method.
This instrument is based on standards such as GB7973, GB7974, ISO 2470, GB 13025, GB8940.2, GB1543-88, etc
Technical Parameter
Zero drift: ≤ 0.1%;
Indication drift: ≤ 0.1%;
Indication error: ≤ 0.5%;
Repetitive error: ≤ 0.1%;
Mirror reflection error: ≤ 0.1%;
Sample size: The test plane should not be less than 30mm (or 19mm), and the sample thickness should not exceed 40mm;
Power supply: AC 220V ± 10%, 50Hz, 0.4A.
Working environment: Temperature range of 0-40 ℃, relative humidity<85%;
Size and weight: 375 × 264 × 400 (mm), 16kg.
Product Features
This instrument has a novel appearance and compact structure, and advanced circuit design effectively ensures the accuracy and stability of measurement data.
Adopting a large screen high pixel LCD display module, the instrument displays and prompts operation steps in Chinese, displays measurement and statistical results, and has a friendly human-machine interface that makes instrument operation simple and convenient.
The instrument has power-off protection, and calibration data will not be lost after power-off.