Machine Introduction
It is used to measure the whiteness of the surface of the object,
and the measurement result is displayed on the LCD screen.
Widely used in paper, textile, printing and dyeing, plastics,
ceramics, enamel, grain, building materials, paints, chemicals,
salt and other production and commodity inspection departments that
need to measure the whiteness of special objects. The instrument
also measures the transparency, opacity, light scattering
coefficient and absorption coefficient of the paper.
The desktop whiteness meter (microcomputer type) is composed of a
light source, an optical system, a detection system, a
microcomputer data processing and display system, etc. The overall
whiteness of the substance is R457. R457= Blue light whiteness
R457+ fluorescence whitening F. The whiteness of an ideal surface
with a spectral diffuse reflectance ratio of 1 is defined as 100,
and the whiteness of an absolute black surface with a spectral
diffuse reflectance ratio of 0 is defined as 0. Station WSB - 3
desktop whiteness meter (microcomputer) completely in accordance
with the standards prescribed by the international committee (CIE)
lighting light source and designed according to the test
conditions, through rigorous testing, debugging, and implement in
the enterprise standard Q/TDKY02-2004, It can be applied to
national standards such as GB2913, GB5950, GB8940.1, GB12097, and
GB13025.2.
Working principle
The desktop whiteness meter (microcomputer type) can be widely
applied to the whiteness measurement of objects such as textile
printing and dyeing, paint and coatings, chemical building
materials, paper and paperboard, plastic products, white cement,
ceramics, enamel, kaolin, talcum powder, starch, flour, salt,
detergents, cosmetics, etc. The opacity of paper can be calculated
through measurement. 1, determine the blue sample 457 - nm diffuse
factor (R457), referred to as the "blu-ray R457" white 2, determine
whether sample containing fluorescent whitening agent, and can
determine the fluorescence emission of fluorescent whiteness value,
known as "fluorescent whitening degree F" or "whitening degree F".
Feature
1. Measure the R457 value and the fluorescence whitening F value of
the substance to be tested at one time. This method is convenient
to use and the measured values are accurate.
2. the interface simple operation, according to the working process
in appendix, can master the operation method directly.
3. USES the big-screen high-definition LCD display, with reading
and comfortable, and not affected by natural light.
4. high precision integrated circuit with low drift, high
efficiency long life light source, which can effectively guarantee
the instrument work stably for a long time.
5. reasonable, simple optical path design, can effectively
guarantee the accuracy and repeatability of measurement.
6. simple operation, can accurately measure the opacity of paper.
7. using national standard calibration board to convey, accurate
and reliable measurement.
Technical Parameters
Measuring range: 0 ~ 120
survey content: whiteness R457, Fluorescent whitening degree F
Light source: LED light source
According to the test conditions: comply with GB/T3978 45/0
Display: LCD
Display measurement aperture: ￠30
minimum value: 0.1
measurement repeatability: 0.2:
Error:≤±1
Using environment: Temperature (5℃ to 35℃) Humidity (85% RH or
less)
Transportation, storage environment: temperature (20 ℃ to 50 ℃);
Humidity (≤90%RH)
Signal output: Customized USB interface output transmits numerical
values. The instrument synchronizes data with the computer and
stores and prints the detection data through the computer.
Notes for Attention
The desktop white balance instrument (microcomputer type) is a
precision measuring instrument. It is strictly prohibited to
disassemble it at will. Please read the user manual carefully
before use.
1. The working environment should be free of corrosive gases and
vibration sources.
2. There should be no strong light sources or strong magnetic field
interference around.
3. The surrounding air should be dry and there should be no
floating dust.
4. After the instrument is idle for a long time, the preheating
time should be appropriately extended to improve stability.
5. The power supply voltage must meet the working conditions.
6. Do not drop the sample into the measuring cylinder to avoid
being unable to zero.
7. Do not touch the optical components directly with your hands to
avoid affecting the spectral characteristics.
8. Do not let the black cylinder and the working white board be
contaminated to avoid affecting the accuracy.
