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Help CenterWVTR-2502 Water Vapor Permeability Tester
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Application:
WVTR-2501 is based on the weighing method and available for the water vapor permeability test of plastic films, aluminum foil, aluminized films, plastic composite films and many others.
Features:
— Weighing method
— Dual weighing modules, patent technology
— 18 specimens, continuously test
— One-button test, test automatically in whole process
— Multiple test modes optional
— Temperature and humidity auto control
— Data curves display
— Computer control
— Environment temperature and humidity sensor inside
— Unit based on embedded system,24bit Δ-Σ AD
— Traceable reference film calibration
— Supports DSM system (DSM, lab data management system)
Principles:
Test dishes filled with distilled water in a controlled dry atmosphere, 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, water vapor transmission rate and other parameters can be obtained by measuring the weight changes of the test dish in different time.
Technical indexes:
| Test range：0.1~19,000 g/m2·24h (standard) | |
| Test accuracy | 0.01 g/m2·24h |
| Specimen amount | 3 specimens, independent |
| Temperature range | 15C – 65C |
| Temperature accuracy | ±0.1C |
| Differential humidity range | Room%RH-97%RH,standard condition 90%RH |
| Humidity accuracy | ±1%RH |
| Test area | 28.26 cm2 |
| Specimen size | Φ76 mm |
| Air velocity | 0.5~2.5 m/s (customization available) |
| Test chamber volume | 36L |
| Gas supply | Air |
| Gas interface | Φ8 |
| Power supply | AC 220V 50Hz |
| Dimension | 650 mm(L) * 550 mm(W) *475(H)mm |
| Net weight | 67kg |
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