Surface Area and Pore Size Analyzer
BETA201A
I. Scope of Application and Functions
1. Wide applicability: including measurement of 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 functions, including all current data processing methods: single-point and multi-point BET surface area. Langmuir surface area. Particle size estimation and true density testing, porosity and pore structure analysis. Adsorption and desorption isotherm analysis. BJH mesopore and macropore volume, pore area distribution with pore size, total pore volume, etc. Can add t-plots micropore analysis, as-plots micropore analysis, MP micropore analysis, etc. Can perform micropore DR theory, HK slit pore theory, SF cylindrical pore theory analysis, and can add DFT density functional theory, including NLDFT, etc.
II. Software Functions:
1. USB connection or network port connection can be selected. Network port connection enables remote control of the instrument, remote fault diagnosis, and can achieve one computer controlling multiple devices through a router, saving resources for customers.
2. Optimized vacuum pump start-stop management system. During the test, the vacuum pump does not need to run continuously, reducing noise and extending the vacuum pump's lifespan.
3. Automatic atmospheric pressure recovery function, convenient for sample removal, and ensures no sample splashing.
4. Automatic high vacuum detection system ensures that tests are conducted under high vacuum conditions, ensuring accurate test results.
5. Automatic emergency handling system can ensure the instrument automatically recovers to normal under sudden power outages, quartz tube breakage, and other unexpected circumstances.
6. Powerful database, storing dozens of test modes. Customers can also create test modes more suitable for their own products based on their needs, for more precise testing.
7. After power outage, the test system recovery function. During surface area and pore size analysis, the vacuum degassing process is quite lengthy. If a sudden power outage interrupts the test, it is a very painful and helpless situation. Not only is data lost, but it also delays scientific research progress. This function is particularly important at such times.
8. Can perform PDF electronic printing and Excel data export, as well as various theoretical data selection printing. It can also compare and print data and distribution curves from different times, same sample, same test mode.
9. Can operate in both Chinese and English interfaces and print test reports in both Chinese and English.
III. Technical Requirements:
1. Vacuum system: The vacuum system specially designed for the HYA series by vacuum processing experts from the Chinese Academy of Sciences. All stainless steel pipelines matched with internationally renowned vacuum solenoid valves, achieving higher vacuum (up to 10-8 Torr) and maintaining high vacuum for longer. Basic configuration vacuum pump 10-2pa (10-4 Torr). P/P0 can reach 10-7.
2. Intelligent selection of multi-capacity space technology;
3. All stainless steel vacuum system connections sealed with metal sealing technology;
4. The inner wall of the vacuum system adopts silver plating technology.
5. The vacuum system adopts a technology of adding an additional vacuum protective layer outside the test space.
6. Detection system: imported capacitive absolute pressure thin film pressure transmitter, with accuracy reaching 0.1%, (0-10 Torr --- equivalent to 0-1.33KP, 0-1000 Torr ------ equivalent to 0-133.3kp). High up to 24-bit AD acquisition circuit ensures data accuracy. Can perform tests on thousands of points.
7. High-quality control valves make evacuation and gas intake very stable, 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 where heating degassing and sample analysis proceed simultaneously without contaminating the sample analysis pipeline.
8. Sample testing and treatment at the same position, achieving the most ideal degassing treatment effect. At the same time, it avoids the sample being disassembled and exposed to air, affecting adsorption capacity. We use a three-way valve above the sample chamber to cleverly separate the test pipeline and heating degassing pipeline, so that impurities generated during degassing do not contaminate the test pipeline and vacuum gauge. This is our core technology.
9. Independent P0 tube ensures accurate P0 value. P/P0 can reach 0.9995.
10. BETA201A is equipped with a large-capacity liquid nitrogen Dewar flask, which can maintain 70 hours of unattended operation. HYA is also equipped with a liquid nitrogen isothermal jacket to ensure constant temperature below the isothermal jacket throughout the analysis process. An automatic liquid nitrogen refill system can be added for sample testing of any required duration.
11. Truly unattended operation. The instrument panel has no manual buttons; all operation procedures are controlled by the computer.
12. Wide analysis range: surface area from 0.0005m2/g (Kr measurement) to no upper limit. Pore size analysis 0.35nm-500nm. Minimum pore volume detection: 0.0001 cc/g. (Nitrogen adsorption, can be equipped with high vacuum system). Test accuracy can reach repeatability error <±1%.
13. BETA201A is equipped with 2 sensors, one for real-time P0 testing to ensure P0 accuracy, and the other for analyzing 1 sample simultaneously, allowing simultaneous testing of surface area and pore size distribution of 1 sample. (Note: molecular pump can be added as needed).
14. Only nitrogen is needed for testing, no helium (helium is expensive and hard to buy), saving customers money.
15. Surface area 1 sample 25 minutes, conventional pore size 1 sample 3.5 hours.
16. Can perform N2, Ar, Kr, NH3, CO2, H2, CO, O2, methane, butane, and other non-corrosive gas adsorption analysis.
17. USB connection or network port connection can be selected. Network port connection enables remote control of the instrument, remote fault diagnosis, and can achieve one computer controlling multiple devices through a router, saving resources for customers.
IV. Safety Protection:
This instrument has relatively complete safety protection measures:
Circuit protection control of this test instrument:
(1) Overvoltage protection (2) Overcurrent protection (3) Short circuit protection (4) Leakage protection (5) Software misoperation protection
V. Test Method
Automatic vacuum testing
