Function and Use

The SN-N01 gas permeability meter (hereinafter referred to as the gas permeability meter) is used to test the permeability of various gases such as O2, CO2, N2, etc. in various films, infusion bags and other packaging materials. This product is designed and manufactured based on the differential pressure test principle and in accordance with GB/T 1038, ISO 2556 and other standards. It uses high-precision pressure sensors and automatic differential pressure maintenance technology to achieve high test accuracy. It is suitable for testing the gas permeability of films, sheets, paper, packaging and related materials in the fields of food, medicine, medical devices, daily chemicals, photovoltaic electronics, etc., and provides a wide range of high-efficiency gas permeability testing for high, medium and low gas barrier materials.

Test Principle

The SN-N01 gas permeability meter is designed based on the differential pressure method. The pre-treated sample is placed between the high and low pressure test chambers, clamped, and the entire test system is vacuum treated. Fill the high-pressure chamber with experimental gas to ensure that a constant pressure difference is formed on both sides of the sample. Under the action of the pressure difference, the gas penetrates from the high-pressure chamber through the film to the low-pressure chamber. By monitoring the pressure change of the low-pressure chamber, the barrier parameters of the tested sample can be calculated.

Compliant with standards

GB/T 1038, ISO 2556, ISO 15105-1, ASTM D1434, JIS K7126-1, YBB 00082003

Instrument features

1. The permeability meter has a unique cavity and gas path design, and different low-pressure chamber volumes can be easily selected according to needs, so the measurement range is wide.

2. The permeability meter uses imported professional sensors to ensure the high accuracy and high stability of the instrument.

3. The internationally advanced P.I.D temperature control technology of the permeability meter can freely raise and lower the temperature, the temperature change rate is adjustable, and the temperature control accuracy is within the range of ±0.05℃.

4. Real-time display of transmittance, pressure, pressure difference, temperature, and operating parameter curve display, which is convenient for tracking the operating status of the instrument.

The software interface is simple and easy to operate. You can choose automatic and manual testing; the experimental report is automatically saved, and the transmittance and other parameters and curves can be printed.

5. Real-time display of the transmittance of each point, through the transmittance curve, you can understand the test progress.

6. Large-scale maintenance-free design, excellent performance, can be operated uninterruptedly all year round, with overpressure safety protection function.

7. The instrument host is equipped with a touch display human-machine interface, which displays various parameters at the same time, with a micro printer.

Technical parameters

Measurement range: 0.02-50000cm3/(m2.day.0.1MPa)

Measurement accuracy: within ±2% of the indicated value

Temperature range: 10℃-50℃

Temperature control accuracy ±0.05℃

Sample temperature: 23℃

Resolution: 0.01pa

Vacuum degree: <20pa

Carrier gas interface: 1/8 inch

Sample thickness: ≤5mm

Power requirement: 220 VAC, 50Hz

Transmission area: 50.24 c㎡ (others optional)

Instrument configuration

Host, power cord, stainless steel pipe, air pipe, sealing grease, computer connection cable, sampler, qualitative filter paper, installation accessories, printing paper