VAC-V2 PERME Gas Permeability Tester
Measures how gas permeable a membrane is. Capable of measuring the transmission rate of permanent gases, air, oxygen, nitrogen and carbon dioxide - particularly useful for the permeability of carbon dioxide. Three test chambers.
The PERMETM VAC-V2 measures the gas permeability of a membrane.
Capable of measuring the transmission rate permanent gases, air, oxygen, nitrogen and carbon dioxide and is particularly useful for the permeability of CO2.
The VAC-2 has three test chambers to ensure a quick test time, is very sensitive and highly linear, with a measuring range of 0.05 – 50,000 cm3/m2/day. Software calculates rate of transmission, solubility and diffusion coefficients.
Standards
Complies with: ISO 2556, ISO 15105-1, ASTM D1434, GB 1038, JIS K7126-A
Related products
The PERME VAC-V2 replaces the Lyssy L100-5000 manometric gas permeability tester, which has been discontinued by PBI-Dansensor.
Also in the PERME series:
Features
- Uses a Manometric principle
- Three independent test chambers, can display individual cell data and statistics for the three as a group
- High precision vacuum sensor to ensure consistent testing
- User selectable temperature control device for testing between 5 – 95 °C
- Optional dual test modes – conventional and non-standard
- Powerful software for automatic calculation of solubility, permeability and diffusion coefficients
- Microsoft ® Excel ® format conversion and graphical display
- Software can calculate gas transmission rate, diffusion coefficient, solubility coefficient and permeability coefficient at any temperature (-273 – +200 °C )
- Reliable performance, nonstop operation and improved test efficiency
- Easy calibration of reference film
Principle
A preconditioned test specimen is clamped between the upper chamber and the lower chamber of a test cell. A vacuum is applied to the low-pressure lower chamber and then to the whole system.
When the specified degree of vacuum is reached, the lower test chamber is shut off and test gas of a selected pressure is fed into the upper high pressure test chamber.
Ensuring that a constant differential pressure (adjustable) is maintained across the specimen, under the gradient of differential pressure the test gas permeates from the high-pressure side to the low-pressure side.
The pressure in the low-pressure side is monitored in real time and the rate of transmission is calculated.
Technical Specifications
| Test range 0.05 to 50.000 cm3 / m2 / day 0.1 MPa (normal) Extendable to 500.000 cm3/m2 / day 0.1 MPa (extension volume) Normal and extension volume can be selected using extension vacuum accessory. |
|
| Temp. control range 5 ºC – 95 ºC (water medium) |
Temp. control accuracy +/- 0.1 ºC |
| Humidity control range 0 %RH, 2 %RH – 98.5 %, 100 %RH (additional humidity generator is required) |
Humidity control accuracy +/- 1 %RH |
| Vacuum resolution 0.1 Pa |
Vacuum degree < 20 Pa |
| Test gas O2, N2, CO2 |
Test pressure -0.1 MPa – +0.1 MPa |
| Pressure of gas source 0.4 MPa – 0.6 MPa |
Specimen size diameter – 97 mm |
| Transmission area 38.48 cm ² (diameter 70 mm) |
No. of specimens 3 pieces |
Physical specifications
- Dimensions: 760 x 575 x 450 mm (L x B x H)
- Weight: 88 kg
- Power: AC 220V 50Hz / 60Hz
Includes
- Base unit
- Software
- Extension vacuum accessory
- Sample cutter
- Vacuum pump
- Vacuum grease
- Filter paper
Optional
- Blades
- Oil for vacuum pump
- Humidity generator
Note
Compressed air are not provided