Water Vapor Permeability Tester for Mask – W203


Water vapor permeability tester wholly automatic, software easy to use. Curves of transmission rate, water vapor density, humidity and temperature, auto record and continuous display.

GBPI Water vapor permeability tester adopt electrolytic detection sensor method. Fix the test sample in the middle of test chamber to the separate the chamber into upper room and lower room. When humid gas flows in upper room and dry gas in lower room, the water molecules in upper room penetrate through the sample into the dry gas, and electrolytic sensor system detect and analyze the water content and calculate the water vapor transmission rate.

W203 Water vapor permeation tester features:

  1. Wholly automatic, software easy to use. Curves of transmission rate, water vapor density, humidity and temperature, auto record and continuous display. Can easily monitor interaction of parameters and the whole testing process.
  2. Highly modularized, setting, testing, baseline, calibration, report etc are independent. Powerful data analysis. Easy to operate.
  3. Buld-in computer, can work without external computer.
  4. Temperature control: International advanced electromagnetic technology, program controlled, no need to external accessories; precision 0.1°C.
  5. Humidity control: dual gas flow method, with broad range, high precision  and stable flow.
  6. Standard gas calibration and and standard film calibration.
  7. Auto judgment and auto stop.
  8. Leakgage protection; over range protection; auto save data when power is cut off; incorrect operation warning
  9. Support quick test, applicable to evaluation test.
  10. W203 water vapor permeation analyzer equipped with two chambers, can work independently at the same time for two different samples.
  11. Software upgrade, data backup and fault diagnosis through USB port.

Specifications Water vapor permeation tester features:

  • Test range: 0.001~100g/ (m²•24h)
  • Test accuracy: 0.001g/ (m²•24h) film and sheet
  • Temperature range: 15 ~ 45°C  (5 ~ 55°C optional)
  • Temperature accuracy: ±0.1°C
  • Humidity range: 0%RH, 30~90%RH, 100%RH
  • Humidity accuracy: ±1%RH
  • Number of samples: 1 ~ 3 pcs
  • Sample size: ∅100mm, test area 50.24cm²
  • Sample thickness: ≤ 2mm
  • Carrier gas: N2
  • Carrier gas pressure: ≥0.1 mpa
  • Gas flow: 0~100 mL/min
  • Instrument size: 700 x 585 x 400 mm
  • Power supply: 220V 50Hz (110V optional)


  • Main machine body
  • Software
  • Communication cable
  • ∅100 sample cutter
  • 1/8 inch copper tube
  • Sealing grease
  • Clip connector
  • Water injector
  • Spanner
  • Standard test plate
  • Mouse

Use provide: nitrogen (99,999%), pressure releasing valve, computer

Optional (for purchase): test accessory, standard film, sealing grease, special clips, pressure releasing valve, computer.


Download Catalog at here

Contact: sales@vecomtech.com 

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