GPT-H21Hydrogen filter testerBased on the testing principle of pressure difference method, it is a professional gas permeability tester for thin film samples, suitable for measuring the permeability and permeability coefficient of flammable and explosive gases of plastic films, composite films, high barrier materials, sheets, and metal foils at various temperatures.
GPT-H21Hydrogen filter testerTest Principle
The instrument adopts the principle of differential pressure testing, placing the pre processed sample between the upper and lower testing chambers and clamping it. Firstly, perform vacuum treatment on the low-pressure chamber (lower chamber), and then evacuate the entire system; After reaching the specified vacuum degree, close the lower chamber of the test, fill the high-pressure chamber (upper chamber) with a certain pressure of test gas, and ensure that a constant pressure difference (adjustable) is formed on both sides of the sample; In this way, gas will permeate from the high-pressure side to the low-pressure side under the action of pressure gradient. By monitoring and processing the pressure inside the low-pressure side, various barrier parameters of the tested sample can be obtained.
GPT-H21Hydrogen filter testerProduct features
Choose safe and explosion-proof pipelines and sensors
Adopting explosion-proof vacuum pumps and outdoor devices for safe gas discharge
Using pneumatic clamping for sample, convenient and fast
Micro printer, print notes at any time, test statistics results
Specialized computer communication software for real-time display of experiments, analysis and processing of data, and data storage
Equipped with USB universal data interface for convenient data transfer
The system adopts electronic intelligent control, and the entire experimental process is automatically completed
Provide standard membranes for rapid calibration to ensure the accuracy and universality of detection data
L can simultaneously measure the gas permeability and gas permeability coefficient of the sample
Wide range, high-precision temperature control to meet various testing conditions (optional)
Provide three testing process judgment modes: proportional, fuzzy mode, and time mode
The testing range can be expanded as needed to meet the requirements of high transmittance testing
Support testing for flammable and explosive gases
The system is equipped with a built-in combustible gas sensor alarm prompt and safety blowing function
The product complies with GMP user multi-level permissions