JW-DA Dynamic Method Nitrogen Adsorption Specific Surface Area Analyzer Technical Parameters  Test methods: Reference Comparison Method, BET (single-point, multi-point) method, LangmuirSorption gas:  Nitrogen (N2, 99.99%)Carrier gas: Helium (He, 99.99%) Nitrogen Pressure control: P / Po 0.05 - 0.35, control accuracy error ≤ 0.5%; Measuring range:  Surface area ≥ 0.01m2/g, no upper limits;   Analysis ports:   4    Test efficiency:     Reference comparison method: about 5 - 8 minutes per sample                                BET method: about 25 minutes per sample  Pressure accuracy:   ≤ ±2%Repeatability:  ≤ ±1 %Data acquisition: high-precision data acquisition and processing chip; high anti-interference ability.Data processing: WINDOWS-compatible data processing software without installing, providing multi-mode data analysis, graphical processing interface, real-time monitoring experiment, and simple operation. Automatic Control                           Automatic adjustment of nitrogen partial pressure; Automatic up and down system for Dewar;                   Absorption / desorption equilibrium conditions are determined automatically;Zero of thermal conductivity detector is adjusted automatically.  Intelligent Software On Windows platform, providing testing process control, efficient data acquisition ,processing, editing, computing, mapping, and storage;  With the powerful data archiving, preservation, inquiry system, and a user-friendly data management, users can query the original data;     On the Windows interface, it can real-time display adsorption or desorption process of the tested samples intuitively. On the end of the measurement, you can access to single point curve, multi-point curve, multi-point surface area straight-line and test result of each sample.The software program can be upgraded free for customers.  High accuracy and repeatabilityHigh-sensitivity TCD as well as the constant current circuit, guarantees the accuracy of the analyzer;Automation of the experiment, and consistency of the experimental conditions, so that the repeatability and linearity of test results are further improved;Mass flow controller: fast response time, high accuracy of helium and nitrogen partial pressure up to ± 0.1%;Dedicated Vacuum Pretreatment Machine (AVPM) plays a key role to ensure the test accuracy.The accuracy and repeatability of the analyzer was checked, and the test certificate is issued by China Institute.

JW-DA Nitrogen Adsorption Surface Area Analyzer