TZC series particle measuring instrument consists of high precision electronic settling balance, computer and particle size data processing software.When settling the measured liquid particles falling into the balance plate, LCD screen display quality value, the quality of signal transmission to the computer at the same time, by granularity data processing software for real-time acquisition quality signal and display on a computer screen, after the settlement, curve can be stored up, to call at any time, and then calculation of granularity computing results table and graph form printed.
sedimentometer is widely used to determine the size and distribution of dust particle size in industries such as latex, pigment, abrasive synthetic resin, cosmetics, pharmaceuticals, glass, powder metallurgy, cement, plastics, refractory materials, coatings, petroleum, coal, etc. It is a common instrument for scientific and technical personnel engaged in particle size research and testing.
Character
(1) optimize the design of the force value sensor based on the high performance electromagnetic balance principle, improve the original 1mg precision to 0.1mg, greatly improve the sensitivity, accuracy and repeatability of the instrument;
(2) adopted a wide view STN backlit LCD;
(3) the data processing software has been optimized for many times, which can measure the settlement property and small particles of samples for a long time.Smoother calculation, more accurate results;
(4) the use of advanced data structure, the original database procedures for reprogramming, more stable and reliable performance.
Specification
Model
LR-TZC-4
LR-TZC-5
Balance maximum load
100g
100g
Balance accuracy
1mg
0.1mg
Particle range
1~600μm
1~600μm
host function
Zero clearing, peeling, self-calibration, alarm
Display mode
Wide-angle backlit liquid crystal display
data processing
Settlement curve acquisition, storage, call;Particle size, median diameter, average particle size and specific surface area were measured.On average,
Error calculation;Particle distribution analysis;Calculate the result and print the chart
test principle
According to stokes' theorem, particle grading occurs in the process of dust particles settling, so the viscosity of static settling liquid is affected by settling
Particles play a role of friction resistance, as calculated by the formula:
R = 9 eta / [2 g (gamma k - gamma t)]?(H/t)
Type:
R is equal to the radius of the particle, cm
Eta = subsidence fluid viscosity berth, i.e., g/cm?seconds
Gamma k= particle specific gravity gram/centimeter 3
Gamma t = specific gravity of settling fluid g/cm 3
H = settlement height (the distance from the settlement liquid level to the bottom of the pan) cm
T = settling time seconds
G = acceleration of gravity 980 cm/s 2
After measuring the time t required for particles to settle to a certain height H, settlement velocity V and particle radius r can be calculated.This theory is applied to the so-called sedimentation analysis method to obtain the particle distribution.
