Company Profile:

Shanghai Fangrui Instrument Co., Ltd. is a professional manufacturer of measuring instruments, with production licenses for electronic scales and drying moisture meters. Having multiple national technology patents, the various instruments produced have completely independent intellectual property rights. The company has a complete R&D, production, quality inspection, after-sales and other systems to ensure that every product produced meets the corresponding national and industry standards and can pass third-party technical inspections.

Shanghai Fangrui Instrument Co., Ltd. produces the TZC series particle analyzer, which comes in two models: TZC-4 and TZC-5. TZC-5 is a comprehensive upgrade and improvement of the original TZC-4 model based on the advantages of existing similar instruments at home and abroad, which has brought the performance of the settling particle analyzer to a new height. The main improvements include:

① Optimizing the design of a high-performance electromagnetic force balance principle force sensor, the original 1mg accuracy has been improved to 0.1mg, greatly enhancing the sensitivity, accuracy, and repeatability of the instrument;
② Adopting STN wide-angle backlit LCD display;
③ Multiple optimizations have been made to the data processing software, which can measure the settling performance and small particles of the sample for a long time. Smoother calculations and more accurate results;
④ By adopting advanced data structures and reorganizing the existing database program, the performance is more stable and reliable.
The TZC series particle analyzer consists of a high-precision electronic settling balance, a computer, and particle size data processing software. When the measured particles in the settling liquid settle onto the balance plate, the LCD screen displays the mass value, and the mass signal is simultaneously transmitted to the computer. The particle size data processing software collects the mass signal in real time and displays it on the computer screen. After the settling is completed, the curve can be stored for easy retrieval, and then the particle size calculation can be performed. The calculation results can be printed out in the form of tables and graphs.

The instrument is widely used to determine the size and distribution of dust particles in industries such as latex, pigments, grinding materials, synthetic resins, cosmetics, pharmaceuticals, glass, powder metallurgy, cement, plastics, refractory materials, coatings, petroleum, coal, etc. It is a commonly used instrument for scientific and technological personnel engaged in particle size research and testing work.

Main technical parameters:

Standard configuration: Host (one self calibrating weight, two cables) 1 settling plate 1 ordinary settling cylinder 2 user manuals 1 certificate of conformity

The instrument is working normally and requires a computer configuration. It is optional and can be equipped with a personal computer

According to Stokes' theorem, dust particles undergo particle classification during the settling process, and therefore the viscosity of the stationary settling liquid affects the settling
Particles play a role in frictional resistance, calculated according to the formula:
r = 9η/ [2 g (γk –γt )] ? (H / t)
In the formula:
R=particle radius cm
η=viscosity of settling fluid, in grams per centimeter? Second
γ k=particle specific gravity g/cm3
γ t=specific gravity of settling fluid g/cm3
H=settlement height (distance from the settlement liquid level to the bottom of the weighing plate) in centimeters
T=settling time in seconds
G=acceleration due to gravity 980 cm/s2
After measuring the time t required for particles to settle to a certain height H, the settling velocity V and particle radius r can be calculated. The so-called settling analysis method applies this theory to obtain the distribution of particles.

Classic testing principles, clear and concise testing processes, stable and reliable testing data, fast and convenient data processing, simple and easy to understand operations, and low prices are particularly suitable for quality testing in industrial and mining enterprise laboratories, as well as for teachers and students in colleges and universities to carry out related scientific research.