Instrument Description: V-Sorb 2800S is a fully automatic intelligent specific surface area measuring instrument independently developed by Jine Spectrum Technology. It adopts the static capacity method test principle, and many famous scientific research institutes and 500 enterprise application cases. Compared with domestic similar products, the test process of the Jine spectrum nitrogen adsorption specific surface area analyzer is more stable, reaching the advanced level of international similar products, and some functions exceed foreign products.

Test methods and functions: nitrogen adsorption vacuum capacity method (vacuum static method), adsorption and desorption isotherm determination, BET specific surface area measurement (single point and multi-point), Langmuir method specific surface area measurement, average particle size estimation, sample true Density determination, t-plot diagram external specific surface area determination;
Measuring range: 0.01 (m2 / g) - to no upper limit (specific surface area);
Measurement accuracy: repeatability error is less than 1.5%;
Vacuum system: V-Sorb's original cartridge-type pipeline and solenoid valve control system greatly reduces the dead volume of the pipeline, improves the sensitivity of detecting trace changes of adsorbed gas, and improves the resolution of specific surface area measurement. The piping reduces the connection point and greatly improves the sealing and the service life of the instrument;
Liquid level control: V-Sorb's original liquid nitrogen surface control system ensures that the position of the liquid nitrogen surface relative to the sample tube remains unchanged throughout the test, completely eliminating the measurement error introduced by the dead volume change;
Control system: It adopts programmable controller solenoid valve control system, high integration and anti-interference ability to improve the stability and service life of the instrument;
Number of samples: 2 sample analyses and 2 sample degassing treatments;
Pressure measurement: Imported dual pressure sensor with pressure segmentation measurement, significantly improved test accuracy at low P/Po points, 0-1000 Torr (0-133 Kpa), 0-10 Torr (0-1.33 Kpa) (optional)
Pressure accuracy: imported silicon film pressure sensor, the accuracy reaches 0.15% of the actual reading, which is better than 0.15% of the full range, far higher than the accuracy of the Pirani resistance vacuum gauge (the general error is 10%-15%);
Partial pressure range: P/Po accurate control range up to 5x10-6-0.995;
Ultimate vacuum: 4x10-2Pa (3x10-4Torr);
Sample type: powder, granule, fiber and sheet material;
Test gas: high purity N2 gas (99.999%) or other (optional as Ar, Kr);
Data acquisition: high-precision and high-integration data acquisition module with small error and strong anti-interference ability;
Data processing: Windows compatible data processing software, complete functions, simple operation, multi-mode data analysis, graphical data analysis results report.