DRK310 Gas Permeation Tester- Differential Pressure Method (average value of three chambers)

Intruction

Gas permeability test.

It is suitable for the permeability test of O2, CO2, N2 and other gases in plastic films, composite films, high barrier materials, sheets, metal foils, rubber and other materials. It can detect toxic gases.

Instrument principle

Differential pressure method:

Place the pre-set sample between the high-pressure chamber and the low-pressure chamber, compress and seal, and then vacuum the high and low-pressure chambers at the same time; After evacuating for a certain period of time and the vacuum degree has dropped to the required value, close the low-pressure chamber, fill the high-pressure chamber with test gas, and adjust the pressure in the high-pressure chamber to maintain a constant pressure difference on both sides of the sample;The gas permeates from the high pressure side to the low pressure side of the sample under the action of the pressure difference; the pressure change in the low pressure chamber is accurately measured, and the gas permeability parameters of the sample are calculated.

Executive standard

YBB 00082003、GB/T 1038、ASTM D1434、ISO 2556、ISO 15105-1、JIS K7126-A。

Technical features

Imported high-precision vacuum sensors and pressure sensors, with high test accuracy;

Semiconductor cold and hot bidirectional temperature control, parallel type, high reliability;

Dynamic leakage measurement technology, eliminating sample installation and system background leakage, ultra-high-precision testing;

Toxic gas evacuating device to avoid leakage of test gas and less gas consumption;

Precise valve and piping parts, thorough sealing, high-speed vacuum, thorough desorption, reducing test errors;

Precise pressure control to maintain the pressure difference between the high and low pressure chambers in a wide range;

Intelligent automatic: power-on self-test, to avoid the failure state to continue the test; one-key start, automatic execution of the test;

Data recording: Graphical, full-process, full-element recording, and data is not lost when power is off.

Data security: optional “GMP computerized system” software module, with user management, authority management, data audit trail and other functions.

Working environment: indoor. There is no need for a constant temperature and humidity environment (reducing the use cost), and the test data is not affected by the environmental temperature and humidity. 

Parameter

The standard configuration

Test host, vacuum pump, test software, vacuum bellows, gas cylinder pressure reducing valve and pipe fittings, sampler, sealing grease, 21.5 DELL display, host built in the test host

Optional parts: container test fixture, humidity control unit.

Self-prepared parts: test gas and gas cylinder.