Specific surface area and porosity testing analyzer

BETA201A

1、 Scope of application and functions

1）Specific surface area and porosity testing analyzerSuitable for a wide range of products, including measuring building materials, graphite, battery materials, zeolites, carbon materials, molecular sieves, alumina, soil, organic compounds and other powders, as well as various blocks, sheets, polymer fibers, etc.

2) Powerful functionality, including all current data processing methods: single point and multi-point BET specific surface area. Langmuir specific surface area. Particle size estimation and true density testing, porosity and porosity analysis. Analysis of adsorption and desorption isotherms. The pore volume, distribution of pore area to pore size, and total pore volume of BJH mesopores and macropores. T-plots micropore analysis, as plots micropore analysis, MP micropore analysis, etc. can be added. Micro porous DR theory, HK slit pore theory, SF cylindrical pore theory analysis can be conducted, and DFT density function theory, including NLDFT, can be added.

2、 Software functions:

1) You can choose between USB connection or Ethernet connection. Ethernet connection can achieve remote control of instruments and remote diagnosis of faults. Multiple devices can be controlled on one computer through a router, saving customers resources.

2) The optimized vacuum pump start stop management system eliminates the need for the vacuum pump to be constantly running during testing, reducing noise and extending the lifespan of the vacuum pump.

3) Automatic restoration of atmospheric pressure function, convenient for sample disassembly, and ensuring no sample splashing.

4) The automatic high vacuum detection system ensures that all tests are conducted in a high vacuum environment, ensuring the accuracy of the test results.

5) The automatic emergency response system can ensure that the instrument automatically returns to normal in case of sudden power outages, quartz tube breakage, and other unexpected situations.

6) A powerful database that stores up to dozens of testing modes, and customers can also establish testing modes that are more suitable for their products according to their own needs, enabling more accurate testing of the products.

7) After power failure, test the system's recovery function. When analyzing specific surface area and pore size, the vacuum degassing process is quite lengthy. During testing, sudden power outages and interruptions can be very painful and helpless. Not only does it lose data, but it also delays the scientific research process, making this feature particularly important at this time.

8) It can print PDF electronic versions and export Excel data, as well as select various theoretical data for printing. It is also possible to compare and print data and distribution curves for different times, the same sample, and the same testing mode.

9) It is possible to conduct tests on both Chinese and English interface operations and print test reports on both Chinese and English interfaces.

3、 Technical requirements:

1. Vacuum System: A vacuum system specially designed by vacuum processing experts from the Chinese Academy of Sciences for the HYA series. It is equipped with all stainless steel pipelines and international vacuum solenoid valves, with a higher vacuum degree (up to 10-8 Torr) and a longer duration of maintaining high vacuum degree. Basic configuration: Vacuum pump 10-2pa (10-4 Torr). P/P0 can reach 10-7

2. Intelligent selection of multi capacity space technology;

3. The connection seal of the all stainless steel vacuum system adopts metal sealing technology;

4. The inner wall of the vacuum system adopts silver plating technology.

5. The vacuum system adopts the technique of adding an additional layer of vacuum protection outside the testing space.

6. Detection system: Imported capacitive absolute pressure thin film pressure transmitter, with an accuracy of 0.1%, (0-10 Torr - equivalent to 0-1.3KP, 0-1000 Torr - equivalent to 0-133.3kp) up to 24 bit AD acquisition circuit to ensure data accuracy. Thousands of points can be tested.

7. High quality control valves ensure stable extraction and intake without sample splashing. Special gas path treatment avoids secondary contamination during the transfer of sample tubes from the degassing station to the analysis station. Advanced technology that performs heating degassing and sample analysis simultaneously without contaminating the sample analysis pipeline.

8. Sample pretreatment is more convenient and efficient. Sample testing and processing are conducted at the same location to achieve the desired degassing effect. At the same time, avoid disassembling the sample and exposing it to air, which may affect its adsorption capacity. We use a three-way valve above the sample chamber to cleverly divide the testing pipeline and heating degassing pipeline into two parts, so that impurities generated during degassing will not contaminate the testing pipeline and vacuum gauge. This is our core technology.

9. Independent P0 tube to ensure the accuracy of P0 value. P/P0 can reach 0.9995

10. BETA201A is equipped with a large capacity liquid nitrogen Dewar flask, which can ensure 70 hours of unmanned operation. HYA is also equipped with a liquid nitrogen isothermal jacket to ensure a constant temperature below the isothermal jacket throughout the analysis process. An automatic liquid nitrogen replenishment system can be added for sample testing of any desired duration.

11. Truly unmanned, the instrument panel has no manual buttons, and all operating procedures are controlled by a computer.

12. Wide analysis range: specific surface area from 0.0005m2/g (measured in Kr) to no upper limit. Aperture analysis ranging from 0.35nm to 500nm. Small pore volume detection: 0.0001 cc/g. (Nitrogen adsorption, can be equipped with a high vacuum system) Testing accuracy can reach repeatability error<>

13. BETA201A is equipped with two sensors, one for timely testing of P0 to ensure its accuracy, and the other for simultaneous analysis of one sample, which can simultaneously test the specific surface area and pore size distribution of one sample. (Note: Molecular pumps can be installed as needed).

14. Only nitrogen is needed for testing, no helium is needed (helium is expensive and difficult to buy), saving customers money.

15. Specific surface area for 25 minutes, pore size for 3.5 hours

16. It can perform adsorption analysis of N2, Ar, Kr, NH3, CO2, H2, CO, O2, methane, butane, and other non corrosive gases.

17. You can choose between USB connection or Ethernet connection. Ethernet connection can achieve remote control of instruments and remote diagnosis of faults. Multiple devices can be controlled on one computer through a router, saving customers resources.