- Characteristics
- Cup method, high in efficiency.
- 12 test chambers test at same time or test in random groups.
- Satisfies different test conditions, controlled automatically.
- Transmission and weigh up are in same ambient, little errors caused by human operation.
- Highly accurate sensor, data reliable.
- Flexible heating equipment, even and gentleness.
- P.I.D. system controls temperature accurately. Little temperature fluctuation.
- Professional software, test data displayed dynamically.
- Database mode storage, easy to analyze.
- Functions of storage, researching, printing, plotting, and communication.
- Computer controls automatically, easy to operate, friendly human-equipment interact
- Principle
- Saturated water vapour transmits through specimen in a unit time under specified conditions of temperature and humidity. Determine the transmitted mass by test the decreasing weight of distilled water with time going.
- Performance characteristics
- Before test, just input parameters of pre-heating time, test temperature, and so on. Tester will finish the test automatically and print out test results.
- WVTR under different conditions got, one group or multi-groups test conditions set according to actual requirement of packaging materials.
- The upper limit is that 12 different materials are tested at one time, selectable various test conditions.
- Computer enables the functions of storage, researching, printing, and curve displaying.
- Calibrate by standard poise, easy to operate.
- Technical data
- Test range: 0~10000g/m2·24h
- Quantity of specimen: 1~12 pieces
- Test accuracy: 0.01g/m2·24h
- Resolution: 0.0001g
- Test temperature: Room temperature~50(Standard 38)
- Temperature accuracy: ±0.5
- Humidity: Room humidity~96%RH (Standard 90%RH
)- Humidity accuracy: ±1%RH
- Test area: 33cm2
- Thickness of specimen :3 mm
- Specimen size:74 mm
- Power: AC 220V 50Hz
- Dimension: 826(L)mm×720(B)mm×670(H)mm
- Net weight: 152kg
- Standard
- GB 1037, ISO 2528, JIS Z0208, ASTM E96, ASTM D1653
- Standard configuration
- Mainframe, humidity controller, server, test cups, software, sample cutter, calibration poise.
- Applications
The testers found applications in following :
- Permeability Testing
- Plastic & Paper Testing
- Laboratory Testing
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