WVTR-E1 Water Vapor Transmission Rate Tester is designed and manufactured based on the electrolytic sensor method and conforms to the requirements of ISO 15106-3. This instrument can be used to measure the water vapor transmission rate of barrier materials with high and medium moisture barrier properties with a wide testing range and high testing efficiency. WVTR-E1 is applicable to determination of water vapor permeability of plastic films, sheeting, paper, packages and other relative packaging materials in food, pharmaceutical, medical apparatus, consumer goods, photovoltaic and electronic industries, etc. It can also be extended to test the water vapor permeability test of bottles, bags, tubes and other containers.

Water Vapor Transmission Rate Tester

Product Features

Advanced technology

-High precision micro vapor electrolytic sensor, which improves testing accuracy and stability

-Precise flux controller and automatic gas flux control technology, ensured stable testing process effectively

-World's first advanced water circulated temperature control system, realized temperature auto control and wider temperature range

-Independent temperature control for upper/lower chamber and electrolytic sensor, which ensured accurate testing results

-Self-developed pipeline gas system, ensured system seal ability of gas pipelines

-Sample griping integrated with self-developed anti-side leakage technology, ensured testing accuracy

-Integrated with fully automatic double pressure humidity control method makes wide range of humidity control

High-end Configuration

-Manual, ratio, continuous mode for different testing requirement

-Automatic power failure saving function to avoid test interruption

-Automatic record of the whole testing process, result judgement and results saving function

-Efficient testing, low nitrogen consumption and short test time

-System self-detection to avoid continuing testing in the state of failure

-Real-time monitoring of gas flow, automatic alarm when there is little or no gas

-Rapid access to the temperature and humidity verification port, convenient for fast calibration

Professional Software

-Simple and intuitive operation interface, convenient user-defined testing functions, and perfect data analysis and reporting functions

-Possess powerful functions such as window display, curve overlay analysis, test report customization, original data export, editable with Office software, etc.

-Full process data monitoring and recording, sampling rate adjustable and auto test repeating according to needs

-The software can be equipped with optional data traceability, which can realize multi-level authority management, audit tracking, electronic signature and other functions, comply with GMP requirements

-Pubtester also provides professional customization services to meet users' personalized needs in terms of fixtures and software

-Provide software free upgrade lifetime

Test Principle

The test specimen is mounted in the diffusion cell, which is divided into a dry chamber and a controlled-humidity chamber. The dry side of the specimen is swept by a flow of dry nitrogen, and the water vapor permeating through the specimen from the controlled-humidity chamber is carried by dry nitrogen to the electrolytic sensor where proportion electrical signals will be generated. The water vapor transmission rate is obtained by analyzing and calculating the electrical signals

Applications

Technical specifications

Standards

ISO 15106-3, ASTM F3299, DIN 53122-2, GB/T 21529, YBB 00092003-2015

Configuration

Standard configuration: Instrument, Touch screen, sampler, precise pressure control valve, vacuum grease, communication cable, reference film

Optional configuration: Container testing accessories, temperature and humidity control device for container fixtures

Note：Gas supply and distilled water need to be prepared by customer

Water vapor transmission rate of aseptic protective film, medical plaster patch