Detailed Product Description

Brightness tester/brightness meter/testing equipment/testing instrument, whiteness tester, whiteness meter

1. Description of Brightness Meter :

This brightness meter is mainly used to measure the whiteness of paper, paperboard, paper pulps, pulps of chemical fiber, cotton, chemical fiber, textile, plastic, starch, salt, white cement, porcelain clay and talcum powder, etc. It can also be used to measure the opacity and other optical performance of thin pages.

1.1  Measure the diffuse blue reflectance factor (R₄₅₇), which is also called blue brightness or ISO brightness.

1.2  Analyze whether the sample material contains fluorescence brightener, and measure the fluorescence brightness produced from fluorescence emission. I.e. brightness degree.

1.3  Measure the brightness stimulus value Y₁₀ of sample, i.e. diffuse green reflectance factor R_y.

1.4  Measure the transparency, opacity, optical-absorption coefficient and light-scattering coefficient of samples.

1.5  Measure the ink absorbency of paper and board.

2. Major technical features:

2.1 Measure and digital display the whiteness, fluorescence whiteness and opacity (%), etc.

2.2 Zero drift: ≤0.1

2.3 Indication drift: ≤0.1

2.4 Indication error: ≤0.5

2.5 Repeatability error: ≤0.1

2.6 Error of specular reflection: ≤0.1

2.7 Sample size: testing surface is not less than Φ30mm, thickness of sample is not exceeding 40mm

2.8 Power: 160-260V, 50Hz, 0.3A

2.9 Working environment: temperature is 0-40, relative humidity is not exceeding 85%.

2.10 Size and gross weight: 340*260*420mm, 20Kg