WVTR ,Water vapor transmission rate tester,model W301 

Function and usage

W301 Water Vapor permeation tester tests the water vapor transmission rate (WVTR) of packaging material.

This instrument is widely used in food industry, pharmaceutical industry, cosmetics flexible packaging materials industry(plastic film, barrier materials, sheets, metal aluminum, PVC,PVC sheets), college, university and quality institution for their water vapor transmission rate(WVTR) test and quality control.

It carries the standards of GB 1037-1988 ,GB/T 16928-1997, ASTM E96-00e1 ,ASTM D1653-03,TAPPI T464,ISO2528.

Working principle

W301 Water Vapor Permeation Tester was designed with the principle of weighting method to use weight reduction method to test the water transmittance rate (WVTR) of plastic films. Namely in the regulated temperature, relative humidity conditions, the sample two sides keep the vapor different pressure, measuring the vapor volume passed through, figure out the WVTR value. Unit is g/ m2·24h.

Specifications

Measurement range:0.02~10000 g/ m²·24h

Measurement accuracy:0.001 g/ m²·24h

Temp. range:15°C~45°C

Temp. accuracy:±0.1°C

Humidity range: 0~20%RH dry method 10~90%RH (dual-airflow humidity method, selection)

Humidity accuracy: ±2%RH

Sample thickness:≤2mm

Sample no:1piece

Sample dia.:Φ80mm, transmission area 50.24cm2, (no stipulate for area in international)

Power supply::AC220V/50Hz

Features

1, Automatic test, use friendly,

2, Instrument with configuration of 240,000 true color touch screen to work independently;

3, High-precision sensors with over-range protection, continuous data collection, accurate and reliable data;

4, Automatic control temperature, low requirements for environment;

5, Software displays the status of each curve ,all the test parameters on the real time showing;

6, Work independently without computer;

7.Test precision is the same with infrared method and coulometry method;

8. Superior components ,multi-level security protection design,

9. Calibration with two method of weights and standard film;

10. CE, UL, FCC certifications.

11.Versatile operation language support.

12.Test chambers can expand to ten or even more.

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