W533   Water Vapor Transmission Rate Testing Machine

Functions

W533 Water Vapor Permeability Analyzer test the water vapor transmission rate of various materials, including: plastic film, composite film, aluminum-plated film, aluminum foil etc.; sheets, such as PP sheet, PVC sheet, rubber, building material, porcelain; other application, such as solar panel, paint film, medical patch etc. It is widely used in packaging, plastic film, food, pharmaceuticals, personal care industries, inspection agency, research institute, college and so on.

Water Vapor Transmission Rate Testing Machine

Standards

GB 1037, GB/T 16928, YBB00092003, ASTM E96, ASTM D1653, ISO 2528, TAPPI T464, DIN 53122-1,  JIS Z0208

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

Gravimetric method. Fix the test sample in the middle of test chamber to separate the chamber into upper room and lower room; humid gas flows in upper room, and place desiccant device in lower room; as in lower room it remains dry (0-8%RH) by desiccant, water molecules penetrate through the sample from upper room into lower room, absorbed by desiccant; then the cup weight will increase; system weigh the increasing cup weight so as to calculate the water vapor transmission rate.

Techinical Parameter

Features:

1, Three test chambers, with independent sensor, test data and test report; can test three different samples at the same time. 
2,High precision sensor, continuous weighing and data acquisition. 
3,Wholly automatic test, auto judgment, auto stop. 
4,With software, control by computer. 
5,Built-in operation system, Windows style interface, can test independently without computer. 
6,True color LCD screen, real time display test data and working status; make setting and control by mouse operation and input values by soft keyboard, convenient to use. 
7,Can adjust temperature; advanced electromagnetic temperature control technology, program controlled, automatic increase and decrease; integrated design, no external accessary installed; precision 0.1℃. 
8,Can adjust humidity; use double gas flow method to control humidity, adjust the flow rates of 0%RH dry gas and 100%RH humid gas to form mixed humid gas of needed humidity; integrated design, no external accessary installed; precision 2%RH. 
9,Self protection: sensor over range protection, auto save data when power cut off, wrong operation warning. 
10,High test precision, can test high barrier material such as aluminum foil. 
11,Excellent environmental suitability, not affected by environment temperature. 
12,Can expand to up to 10 test chambers.

After sale Service:

l   2 years coverage

l   Speedy reply, 12hrs response to customer questions

l   Software free update

l   Minor maintenance ---parts ship within 24 hrs

l   Major maintenance---Technical will be sent within 15 days

l   Free inhouse training for customer operator