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PoretechModel WVTA-9601 -Automatic Water Vapor Transmission Analyzer

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The test methods cover the determination of water vapor transmission (WVT) of materials through paper, plastic films, PTFE membrane and other sheet materials. 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.

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  • Principle of Cup Weighing Method.
  • Computer control, fully automatic test, one-key operation.
  • Single Chamber design, multiple test modes such as smart mode can be selected.
  • Auto Temperature and humidity control system.
  • Data checking trail and traceability.
  • System usage log record.
  • Built-in ambient temperature sensor and humidity sensor.
  • Traceable reference film calibration
  • Supports DSM system (DSM, lab data management system, optional).
  • 5-level user authority management.

  • Specimen Chamber : 1
  • Test range : 0.01 ~ 19,000 g/m2·24h (Standard)
  • Test accuracy : 0.01 g/m2·24h
  • Weighing resolution : 0.0001g
  • Temperature range : 15°C ~ 60°C
  • Temperature accuracy : ±0.1°C
  • Humidity range : 10% – 95%RH, 90%RH (standard)
  • Humidity accuracy : ±1%RH
  • Test area : 28.26 cm2
  • Specimen size : Φ76 mm
  • Specimen thickness : ≤ 3mm
  • Air flow rate : 0.5 ~ 2.5m/s (customization available)
  • System chamber size : 8L
  • Gas supply : Air, 0.2MPa ~ 1.0MPa
  • Power supply : AC 220V 50Hz
  • Dimension : 330mm (L) x 600mm (D) x 340mm (H)
  • Net Weight : 35kg

Standard accessories

  • Main system
  • Operate Software
  • Dish for Water Vapor Transmission Tests
  • Constant humidity control device
  • Communication cable
  • Calibration weight
  • Operate manual
  • Pressure regulator valve
  • Sampler, Desiccant, Ultrafiltration filter

Optional accessories

  • Personal Computer
  • Air compressor
  • Standard membrane
  • Desiccant
  • DSM lab data management system