ST001D liquid crystal whiteness tester is widely used in pharmaceutical and grain, flour, starch, papermaking, printing, textile printing and dyeing, ceramic enamel, building materials, chemical engineering, salt making, and other industries to measure the whiteness of objects. It can also measure the opacity, transparency, light scattering coefficient, light absorption coefficient, and ink absorption value of paper.
This instrument can measure the whiteness WJ of building materials and non-metallic mineral products. Hunter whiteness WH can also be measured.
■ Functions
1. Measure ISO Brightness (R457 whiteness). For fluorescent whitening samples, you can also measure the fluorescence whitening degree generated by the emission of fluorescent substances.
2. Measure the brightness stimulus value.
3. Measure opacity.
4. Measure transparency.
5. Measure the light scattering coefficient and absorption coefficient.
6. Measure the whiteness of blue light.
■ Performance characteristics
1.The instrument has a novel appearance and compact structure, and advanced circuit design effectively ensures the accuracy and stability of measurement data.
2. The instrument simulates D65 illumination.
3. The instrument uses d/o illumination to observe geometric conditions. The diameter of the diffusion sphere is 150 mm, and the diameter of the test hole is 30 mm. A light absorber is provided to eliminate the impact of specular reflection of the sample.
4. The LCD module with large screen and high pixel is adopted, which displays and prompts the operation steps in Chinese to display the measurement and statistical results. The friendly man-machine interface makes the operation of the instrument simple and convenient.
5. The instrument has added a printer and adopts an imported thermal printer core, which eliminates the need for ink and ribbon, has no noise during operation, and has fast printing speed.
6. The instrument has power off protection, and calibration data will not be lost after power off.
7. Data communication: This instrument is equipped with a network interface and a USB interface. Users can transmit data to the server through Ethernet TCP/IP protocol or connect directly to the computer through a USB cable (optional).
Main technical parameters
*GB/T22427.6 Determination of starch whiteness
*GB/T 23774 "General Method for the Determination of Whiteness of Inorganic Chemical Products"
*The instrument complies with GB/T 3978-2008 Standard Lighting Bodies and Geometric Conditions
*GB7933: Pulp, paper, and board - Determination of diffuse reflectance factor (d/o method);
*GB7974: Paper and Board-Determination of Whiteness (d/o Method);
*ISO 2470: Paper and board - Determination of blue light diffuse reflectance factor (ISO whiteness);
*GB 8940.2: Pulp - Determination of whiteness.
*GB 1840: Determination of Industrial Potato Starch.
*GB 2913: Test Method for Whiteness of Plastics.
*GB 13025.2: General Test Methods for the Salt Industry, Determination of Whiteness.
*GB 1543: Paper - Determination of Opacity.
|
Parameter Item |
Technical indicators |
|
Working power supply |
AC220V±10% 50HZ |
|
Zero drift |
≤0.1 |
|
Indication drift |
≤0.1 |
|
Indication error |
≤0.5 |
|
Repeatability error |
≤0.1 |
|
Specular reflection error |
≤0.1 |
|
Sample size |
Test plane not less than φ 30mm, thickness not exceeding 40mm |
|
Instrument size (length × wide × High)mm |
360×264×400 |
|
Weight |
20 kg |
Configuration List
|
S/N |
Name |
Quantity |
unit |
remarks |
|
1 |
Whiteness meter host |
1 |
set |
|
|
2 |
Black cylinder |
1 |
Piece |
|
|
3 |
Standard Whiteboard |
2 |
piece |
|
|
4 |
Light bulb |
2 |
piece |
|
|
5 |
Special powder press |
1 |
set |
|
|
6 |
Printing paper |
2 |
roll |
|
|
7 |
Power cord |
1 |
piece |
|
Company Introduction
Shandong Shengtai Instruments Co., Ltd. is specialized in the research and production of experimental testing instruments and industrial testing instruments. It is a professional instrument company integrating instrument research and development, manufacturing, sales and service. Its products are widely used in food, flour, grain and oil, Feed, electricity, petrochemical, industrial oil, aerospace, coal quality and other industries.
For more than 10 years, Shengtai has always been adhering to the "first-class service, customer first" as the purpose, "reasonable price, honesty and trustworthiness" as the business policy. Adhere to technical innovation, with rich knowledge of the technical team and experienced, thoughtful after-sales service team.
Shengtai instrument as one of the most large-scale and competitive enterprises in the industry, with the strength of technology research and development, professional technical knowledge and innovative design concept, in the model improvement, Significant technical breakthrough has been achieved in the development of function expansion and intelligent control system.
OUR service
After-sales service commitment, our company to sell the product after-sales service commitment: warranty period of one year, long-term technical support outside the warranty period. During the warranty period, the seller shall bear the cost of the replacement of the equipment, the freight and maintenance of the instrument; outside the warranty period, the seller shall waive the maintenance fee and charge only the cost of the basic materials and freight charges when the instrument is malfunctioning and the seller shall not charge the maintenance fee during the warranty period.
