Product Details

Application:

WVTR-2502 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

— Patent technology

— 3 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