Professional, High-end and Intelligent WVTR Tester
|Test Range||0.5 ~ 10,000 g/m2·24h (Water Method)|
|Number of Specimens||1 ~ 3 with independent test results|
|Resolution of WVTR||0.01 g/m2·24h|
|Resolution of Balance||0.0001 g|
|Test Temperature||15 °C ~ 55 °C ±0.5°C (standard)|
|Test Humidity||40%RH ~ 90%RH ±2%RH (Standard 90%RH)|
|Air Velocity||0.5~2.5 m/s (customization available)|
|Test Area||33 cm2|
|Specimen Thickness||≤3 mm (customization available)|
|Specimen Size||Φ74 mm|
|Volume of Test Chamber||27 L|
|Gas Supply Pressure||0.6 MPa|
|Port Size||Φ4 mm PU Tubing|
|Instrument Dimension||585 mm (L) × 692 mm (W) × 520 mm (H)|
|Power Supply||220VAC 50Hz / 120VAC 60Hz|
|Net Weight||83 kg|
Under a certain test temperature, a constant humidity difference is generated between two sides of the test specimen. The water vapor permeates through the specimen and into the dry side. By measuring the weight changes of the test dish in different time, water vapor transmission rate and other parameters can be obtained.
This instrument is applicable to the determination of water vapor transmission rate of:
Including plastic films, plastic composite films, paper-plastic composite films, geomembranes, coextruded films, aluminized films, aluminum foils, aluminum foil composite films, breathable waterproof films and many others
Including engineering plastics, rubber, waterproof building materials and thermal insulation materials, e.g. PP, PVC, PVDC and nylon
Including paper and paper board
Including textiles and nonwovens
Mount film or sheeting in test dish, cover upper surface of specimen with distilled water, and make the lower side in certain humidity. Generate a constant humidity difference between two sides; water vapor permeates through specimen and measure weight changes in different time to obtain the water vapor transmission rate.
NOTE: inverted cups are required
Including solar back-sheets and OLED packaging materials
Including LCD monitor films
Including aseptic wound protecting films, face masks and protective clothing materials
This instrument is based on the cup method, and is professionally applicable to the water vapor transmission rate test of film specimens. It is equipped with three individual test dishes and the testing process is completely automatic and conforms to international standards.
W3/031 system adopts Labthink's latest patent-design mechanical structure to get precision test data during weighing process. It also utilizes the embedded computer control system that provides a better performance than traditional single chip system.
The instrument is equipped with the latest operating software, with user-friendly operating interface and intelligent data management functions. It also supports LystemTM Lab Data Sharing System, which ensures uniform management of test results and test reports.