V-Sorb 2800TP 2 Ports Turbo Molecular Pumped Surface Area and Porosity Analyzer

Brief introduction

2800TP V-Sorb high precision specific surface area and pore diameter measuring instrument using the static volumetric method of measuring principle. The domestic similar specific surface area and pore size analyzer compared, a number of unique technology are adopted, so that the overall performance of the instrument is more perfect, to further improve the accuracy and consistency of test results, test process more stability, reaching the international advanced level of similar products, some functions beyond foreign instruments. Our instrument design more from the user's point of view of V-Sorb 2800TP specific surface area and pore size analyzer with the full automation of operation, user-friendly operation interface, easy to operate; through the use of joint ventures or imported spare parts, greatly improving the instrument reliability and service life. Overall design of products perfect and strict product manufacturing and testing procedures to ensure that products are more in line with the actual needs of the user, also V-Sorb 2800TP than the surface area and pore size analyzer and high price effective protection of the investment benefits to the users and flexible product configuration can not satisfied with the user's different needs.

Technical parameters

Nitrogen adsorption static volumetric method;
Host function: the adsorption and desorption isotherms were measured; sample determination of true density; bjh (Barrett-Joyner-Halenda) mesoporous analysis - the total pore volume and pore size distribution analysis; micropore analysis by t-plot method; MP micropore analysis; HK (Horvath-Kawazoe) and pore size distributions; SF (Saito-Foley) and pore size distributions; Langmuir specific surface area determination; bet (Brunauer Emmett teller) method of the specific surface area measurement (single point and multipoint); average particle size estimates; DR (Dubinin radushkevich) and DA (Dubinin astakhov) filling theory; t - plot diagram method and specific surface area determination;
Vacuum system: V-Sorb original of stainless steel micro welding pipeline vacuum system, vacuum piping must be connected with metal full VCR, maximum reduce the line of dead space volume at the same time, can long maintain high vacuum degree; with the VCR full metal connection, vacuum leak rate can reach 1x10 - 10 (Pa*m3/s), not using any form of the O-ring seal, in order to avoid high vacuum O-ring release gas affecting vacuum degree of;
Vacuum chamber: V-Sorb original of container type cavity and gas valve control system, greatly reduce the line of dead space volume, improve the sensitivity of the changes of trace detection of adsorbed gas, so as to improve the resolution of the aperture analysis; at the same time container type pipeline reduced connection point, greatly improve the sealing performance and the service life of the instrument;
Test mode: V-Sorb original integrated single nitrogen test mode "and" nitrogen and helium standard test mode "in one for customers to choose according to the actual needs; the nitrogen and helium standard test mode", in line with the international standards, to ensure the accuracy and consistency of the results, and the operation is simple; for low temperature can adsorb helium samples, not suitable for helium gas was used for the determination of free space, by using the single nitrogen test model to obtain the ideal of the test results;
Calibration gas: have the option to use He gas (99.999%) for the calibration of the cold free space volume function, can not only have the use of "nitrogen + air traffic control" model to calibrate the cold free space;
Measurement range: 0.0005 (m2/g) - to no upper limit (specific surface area); 0.35nm-2nm (micro hole); 2nm-500nm (in the hole and large hole); 0.0001 cc/g-- to no upper limit (total pore volume);
Measuring accuracy: specific surface area of repeated accuracy is less than or equal to + 1.0%; the aperture repeated error is less than or equal to 0.01; true density is less than or equal to + 0.04%; surface area is less than or equal to + 1.5%;
Liquid level control: V-Sorb original liquid nitrogen surface control system, to ensure that the whole test process of liquid nitrogen surface relative to the sample tube position remains unchanged, completely eliminate the measurement error due to the introduction of the cold volume space changes;
Data collection: the main data acquisition and storage system (patent technology) and high precision and high integration of data acquisition module, the error is small, strong anti-interference ability;
Sample number: at the same time two sample analysis and two sample degassing processing, sample testing system and sample handling system are independent of each other and sample testing and sample degassing treatment can simultaneously, avoid the contamination of the test line, to further ensure the test precision and improve the service life of the instrument;
Control system: using programmable controller solenoid valve control system (patent technology), high integration and anti interference ability, improve the stability of the instrument and service life;
Measurement of pressure: the pressure piecewise measuring import high accuracy pressure sensor, significantly improve the low P/Po test accuracy for pore size distribution measurement.0-1000 Torr 0-133Kpa; 0-1 Torr (0-133pa); 0-0.1 Torr 0-0.133pa;
Pressure accuracy: imported silica thin film capacitive pressure sensor with an accuracy of 0.15% of the actual readings, superior to the full range of 0.15%, far higher than the resistance vacuum Pirani gage accuracy (error is 10% - 15%);
Vacuum pump: the German import maintenance free (imported) molecular pump, double stage vacuum mechanical pump can realize external and internal instrument in two placement method, apparatus with built-in can through software according to the need of automatic control vacuum pump start and stop, to prolong the lifetime of the vacuum pump.
Liquid nitrogen Cup: imported 4 liters of large capacity metal Dewar bottle, without the need to increase the insulation cover conditions, continuous 72 hour test, no need to add liquid nitrogen, can fully meet the microporous long time test requirements.
Partial pressure range: P/Po accurate controllable range up to 5x10-8-0.998;
The ultimate vacuum mechanical pump: bipolar 4x10-2Pa (3x10-4Torr), molecular pump - 5x108Pa;
Sample type: powder, granule, fiber and sheet material;
Test gas: high purity N2 gas (99.999%) or other (as required, such as Ar, Kr);
Data processing: Windows compatible data processing software, the function is perfect, the operation is simple, many kinds of pattern data analysis, graphic data analysis result report form.