Water Vapor Transmission Analyzer - China

The water vapor transmission analyzer can measure the water vapor transmission rate of various materials under different kinds of restricted conditions.

The test conditions can simulate the actual application environment.

The test results are featured with accuracy and reproducibility.

Operating Principle Two independent gas streams are maintained on the two sides of a sample at the desired temperature.

Humidity and gas flow rates are measured.

The transmission rate through the sample is computed using mass balance.

Operating Principle Where

n = moles Φ = humidity M = flow rate

t = time p = equilibrium vapor pressure

ί = inlet o = outlet P = total pressure Application The PMI Water Vapor Transmission Analyzer is capable of measuring water vapor transmission through porous media such as textiles, leathers, man made materials, membranes, nonwovens, and fabrics used in numerous high technology components and consumer products manufactured by a variety of industries.

The instrument has the unique ability to measure vapor transmission rate over a wide range of humidity, temperature, and pressure under gradients of humidity, temperature, and pressure encountered in application environments.

Features

· Humidity on any side can be maintained between 5 and 95%

· Any desired pressure gradient can be maintained.

· Any desired test temperature can be achieved.

· Simultaneous pressure and humidity gradients can be maintained

· Flat samples in a wide range of sizes can be accommodated

· Completely automated test implementation, data acquisition, data store and data simplification.

Technical Parameters Items Parameters

Humidity (φ) measurement Range: 5 - 95%

Accuracy: ± 2%

Differential pressure transducers Range: 4 torr (2 mm Hg)

Accuracy: 0.015%

Mass Flow Transducers Range: 5 L/min

Accuracy: 1%

Humidity (φ) control Range: 0 - 100%

Accuracy: ± 1.5% (φ = 0.5) ± 5% (high & low φ)

Temperature Range: RT - 100 °C

Control: ± 2%

Accuracy: 0.4 °C (low φ) - 0.8 °C (high φ) at 100 °C

Mass Flow Controller Range: 2000 cc/min

Accuracy: 1%

Company Contact:

• Posted By: Qinsun Instruments (Shanghai) Co., Ltd.

• Phone: +862164200566

• Address: No. 2578 Minhang District Gu Dai Road, Shanghai, Shanghai , shanghai , China

• Email:

• Website: https://www.qinsun-lab.com

• Business Description: Qinsun Instruments Co., LTD was founded in 2010, comprised of many experienced engineers and designers standing in the forefront of the industry.
  
  Qinsun specialize in the research and development of high quality lab instrument for textile testing industry.
  
  Our head office in Shanghai and we provide high quality testing instrument and comprehensive service for textile factory, academic research institute and textile lab worldwide.
  
  We have our own textile testing lab.
  
  Our textile testing methods and testing equipment are in the leading position in the industry and have passed the textile testing certification and iso textile testing standards issued by a number of testing.
  
  We always develop the highly sophisticated test instrument which can meet the various demands of the textile industry.
  
  We provide the upfront Micro weathering test equipments with our own brand name QINSUN, such as thermal resistance wet resistance meter, MMT(moisture management tester) etc, and the new functional test instrument include air permeability tester, hydrostatic head tester, thermal protection performance tester, as well as the widely used lab testing equipment such as textile washing color fastness tester, abrasion tester, pilling tester, rubbing color fastness tester, ironing tester and perspiration tester.
  
  For the laboratory requirements, we also bring forth the new practical test instruments.
  
  Qinsun products include: fabric test equipment, Textile Fabric Tester, fiber tester, yarn tester, carpet tester, non-woven fabric tester, toy tester, leather tester, automotive material test equipment and others.