MVTR tester

W402  MVTR Testing Machine  

Functions

To test the water vapor transmission rate (WVTR) of packaging materials, such as plastic film, composite film, coextrusion film, aluminum-plated film, aluminum foil, infusion bag, sheets, paper, paper board, solar battery panel, cellophane, ceramics and porcelain, and various containers such as bag, pouch, bottle, can, bowl, and box. It is widely used in the industries of food, pharmaceuticals, personal care, household, electronics and so on and institutions of quality control, drug inspection and science research.

MVTR Testing Machine

Standards

ISO 15106-2, ASTM F1249, TAPPI T557, JIS K7129, GB/T26253

Application :

* Films
Rigid films, shrik films, stretch films, plastic films, plastic composite films, paper-plastic composite films,aluminized films, aluminum foil, aluminum composite films, high barrier films and many others. Eg. PET, OPP, CPP, LDPE, BOPP

* Sheet
Engineering plastics, rubber, waterproof building materials, and thermal insulation materials, e.g. PP, PVC, PVDC, and nylon

*Packages
Paper, plastics, rubber,paper-plastic composite, glass, and metal packages, eg: bottles, containers

Working principle

Infrared detection sensor method. Fix the test sample in the middle of test chamber to 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. To test container, humid gas is outside and dry gas is inside of the container.

Techinical Parameter

Features

1. Temperature control: International advanced electromagnetic technology, program controlled, without external accessories. Precision 0.1℃. 
2. Humidity control: Two-way gas flow method, with broad range, high precision and stable flow. 
3. Standard gas calibration and standard film calibration. 
4. Auto judgment and auto stop. 
5. Leakage protection; over range protection; auto save data when power is cut off; incorrect operation warning. 
6. Wholly automatic, software easy to use. Curves of transmission rate, water vapor density, humidity and temperature, auto record and continuous display. Can monitor interaction of parameters and the whole testing process. 
7. Highly modularized. Setting, testing, baseline, calibration, report etc are independent. Powerful data analysis. Easy to operate. 
8. Built-in computer, can work without external computer. 
9. Support quick test, applicable to evaluation test. 
10. Two chambers can work independently at the same time for two different samples. 
11. Software upgrade, data backup and fault diagnosis through USB port.

After sale Service:

1. 2 years coverage

2. Speedy reply, 12hrs response to customer questions

3. Software free update

4. Minor maintenance ---parts ship within 24 hrs

5. Major maintenance---Technical will be sent within 15 days

6. Free inhouse training for customer operator