Instrument model: BETA201A
Product Category: Physical Analyzer
Performance parameters:
1. Test method: by means of gas adsorption principle, static vacuum capacity method.
2. Measurement range: specific surface area 0.0005 m2 / g (helium adsorption) to no upper limit. Aperture analysis range: 0.35 nm - 500 nm. Minimum pore volume detection: 0.0001 cc/g.
3. Measurement accuracy: Repeatability error <±1%.
4. BETA201A is equipped with 2 sensors, one way to P0 timely test to ensure the accuracy of P0, the other way to analyze one sample at the same time, can test the specific surface area and pore size distribution of one sample at the same time. (Note: Molecular pumps can be added as needed).
5. Only need nitrogen to test, no helium (helium is expensive and not easy to buy), saving customers money.
6. Host function: By means of gas adsorption principle (typically nitrogen), adsorption and desorption isotherms are determined. Single point and multi-point BET specific surface area. Langmuir specific surface area determination. Particle size estimation and true density testing, porosity and porosity analysis. BJH mesoporous, macroporous analysis. T-plots micropore analysis and external surface area determination. As-plots total area of ​​micropores. MP method micropore analysis. Micro-hole DR theory, HK slit hole theory, SF cylindrical hole theory analysis, and DFT density function theory can be upgraded; including NLDFT theory. (Note: Molecular pump unit can be installed)
7. Technical advantages of BETA201A relative to other similar products in China:
1) Vacuum system: The vacuum processing system specially designed for the BETA series by the vacuum treatment experts of the Chinese Academy of Sciences, all stainless steel pipelines and internationally renowned vacuum solenoid valves, with higher vacuum (up to 10-8 Torr) and longer vacuum time. Basic configuration vacuum pump 10-2pa (10-4Torr).P/P0 up to 10-7.
2) Intelligent selection of multi-capacity space technology;
3) All stainless steel vacuum system connection seal adopts metal sealing technology;
4) The inner wall of the vacuum system is silver plated.
5) The vacuum system uses a vacuum protection layer technology on the outside of the test space.
6) Detection system: imported capacitive absolute pressure film pressure transmitter with an accuracy of 0.1%, (0-10 Torr--- equivalent to 0-1.33 KP, 0-1000 Torr-equivalent to 0-1333.3 kp ) Up to 24-bit AD acquisition circuitry ensures data accuracy. You can test thousands of points.
7) The high quality control valve makes the pumping and intake air very stable, and there is no sample splash. Special gas path treatment avoids secondary pollution during the transfer of the sample tube from the degassing station to the analytical station. Advanced patented technology for heated degassing and sample analysis in-situ without contaminating the sample analysis tubing.
8) Sample pretreatment is more convenient and faster (with patented technology). The sample is tested and processed in the same position to achieve the best degassing effect. At the same time, the sample is removed and removed, exposed to the air, affecting the adsorption capacity. Above the sample chamber, we use a three-way valve to subtly divide the test line and the heated degassing line into two, so that the impurities generated during degassing will not contaminate the test line and the vacuum gauge. This is our core. patented technology.
9) Independent P0 tube ensures the accuracy of P0 value. P/P0 can reach 0.9995.
10) BETA is equipped with a large-capacity liquid nitrogen dewar, which can guarantee 70 hours of uninvolved operation. The BETA is also equipped with a liquid nitrogen isothermal jacket to ensure a constant temperature below the medium temperature jacket throughout the analysis. An automatic liquid nitrogen supplementation system can be added to perform sample testing for any desired length of time.
11) The real unattended, the instrument panel does not have any manual buttons, all operating procedures are controlled by the computer.
12) Wide range of analysis: specific surface area 0.0005 m2 / g (Kr measurement) to no upper limit. The pore size analysis was 0.35 nm to 500 nm. 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 way to P0 timely test to ensure the accuracy of P0, the other way to analyze one sample at the same time, can test the specific surface area and pore size distribution of one sample at the same time. (Note: Molecular pumps can be added as needed).
14) Only need nitrogen to test, no helium (helium is expensive and not easy to buy), saving customers money.
15) The specific surface area is 1 25 minutes, and the pore diameter is 1 hour for 3.5 hours.
16) Adsorption analysis of N2, Ar, Kr, NH3, CO2, H2, CO, O2, methane, butane and other non-corrosive gases can be performed.
17) You can choose USB connection or network port connection mode. The network port connection can realize remote control instrument and remote diagnosis fault. It can realize the operation of one computer and multiple devices through the router, saving resources for customers.
18) Optimized vacuum pump start-stop management system, the vacuum pump does not need to be in running state during the test, reducing noise, prolonging, vacuum pump life.
19) Automatically restore the atmospheric pressure function to facilitate sample disassembly and ensure no sample splash.
20) Automatic high vacuum detection system to ensure that the test is carried out under high vacuum conditions to ensure the accuracy of the test results.
21) The automatic emergency treatment system can ensure that the instrument automatically returns to normal under sudden accidents such as sudden power failure and broken quartz tube.
22) Powerful database, storing up to dozens of test modes, customers can also build test models that are more in line with their own products according to their needs, and more accurate testing of products.
23) After the power is turned off, the test system resumes function. In the analysis of specific surface area and pore size, the vacuum degassing process is quite long. When testing, sudden power failure, interrupting the test is a very painful and helpless thing. Not only does it lose data, it also delays the research process, and this feature is especially important at this time.
24) PDF electronic printing and Excel data export, as well as various theoretical data selection and printing. It is also possible to perform viewing and printing functions at different times, on the same sample, with the same test pattern data and distribution curve.
25) It is possible to carry out Chinese-English interface operation test and Chinese-English interface print test report.
26) Applicable 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.
27) Advanced design concept: The design features of the BETA series of instruments, in addition to the appearance of the atmosphere, exquisite, the internal space is large, easy to repair, but any configuration of the instrument can be upgraded to a higher configuration instrument.
28) The instrument software is powerful and includes 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. Suction and desorption isotherm analysis. The pore volume of the BJH mesopores and macropores, the pore area to pore size distribution, the total pore volume, and the like. T-plots microwell analysis, as-plots microwell analysis, MP microwell analysis, etc. can be added. Micro-hole DR theory, HK slit hole theory, SF cylindrical hole theory analysis can be performed, and DFT density function theory can be added, including NLDFT.
29) Modular design, which is beneficial to instrument upgrade.
8. Overall size: 650X650X960.
9. Power supply: AC 220v ± 10%, current frequency 50 Hz, power is not more than 200 watts
Many people eat and sleep a little in winter and hate dark mornings and short days. This is called "winter blue". Others have more serious symptoms such as sleep disorders, withdrawal symptoms, binge eating, depression, anxiety, and lethargy. These often lead to family, work, and relationship difficulties. This is a perceived problem called seasonal affective disorder (SAD).
SAD is caused by a lack of bright light in winter. The light that enters our eyes stimulates our brain and controls our daily rhythm through the production of hormones. For some people, winter does not have enough light to regulate the hormones that prevent us from getting up and sleeping, being energized, and depressed.
Light Therapy Lamp,Circle SAD Therapy Lamp,Portable LED Therapy Light
Guangdong Jishengke Industrial Co.,Ltd , https://www.dgjskpad.com