W3 031 Water Vapor Transmission Rate Tester

Packaging Testing Equipment

Professional, High-end and Intelligent WVTR Tester

Full Description

Professional, High-end and Intelligent WVTR Tester

Principle

Under a certain test temperature, a constant humidity difference is generated between two sides of the test specimen. The water vapor permeates through the specimen and into the dry side. By measuring the weight changes of the test dish in different time, water vapor transmission rate and other parameters can be obtained.

Technical Specification

Specifications	Film Test
Test Range	0.1~10,000 g/m 2 · 24h (standard)
Number of Specimens	1~3 with independent test results
Accuracy	0.01 g/m 2 · 24h
Resolution	0.0001 g
Temperature Range	15°C~55°C (standard)
Temperature Accuracy	±0.1°C (standard)
Humidity Range	10%RH~98%RH
Humidity Accuracy	±1%RH
Air Velocity	0.5~2.5 m/s (customization available)
Test Area	33 cm 2
Specimen Thickness	≤3 mm (customization available)
Specimen Size	Φ74 mm
Test Chamber Size	27 L
Gas Supply	Air
Gas Supply Pressure	0.6 MPa
Port Size	Φ4 mm PU Tubing
Instrument Dimension	580 mm (L) x 680 mm (W) x 470 mm (H)
Power Supply	220VAC 50Hz / 120VAC 60Hz
Net Weight	83 kg

Application

This instrument is applicable to the determination of water vapor transmission rate of:

Basic Applications	· Films Including plastic films, plastic composite films, paper-plastic composite films, geomembranes, coextruded films, aluminized films, aluminum foils, aluminum foil composite films, breathable waterproof films and many others
· Sheeting Including engineering plastics, rubber, waterproof building materials and thermal insulation materials, e.g. PP, PVC, PVDC and nylon
· Paper and Paper Board Including paper and paper board
· Textiles and Nonwovens Including textiles and nonwovens
Extended Applications	· Inverted Cup Method Mount film or sheeting in test dish, cover upper surface of specimen with distilled water, and make the lower side in certain humidity. Generate a constant humidity difference between two sides; water vapor permeates through specimen and measure weight changes in different time
· Solar Back-sheets Including solar back-sheets and OLED packaging materials
· LCD Monitor Films Including LCD monitor films
· Aseptic Wound Protecting Films and Face Masks Including aseptic wound protecting films, face masks and protective clothing materials

Features

Professional

This instrument is based on the cup method, and is professionally applicable to the water vapor transmission rate test of film specimens. It is equipped with three individual test dishes and the testing process is completely automatic and conforms to international standards.

Standard periodically weighing method and auto zero before each weighing guarantee the accuracy and uniformity of the testing data
Wide range and high-precision of automatic temperature and humidity control to support various combinations of non-standard test conditions
Standard air velocity enables constant humidity difference between two sides of test dishes
Convenient fast-access calibration ports for temperature and humidity
Reference film or standard weight for fast and accurate calibration

High-end

W3/031 system adopts Labthink's latest patent-design mechanical structure to get precision test data during weighing process. It also utilizes the embedded computer control system that provides a better performance than traditional single chip system.

Mechanical Weighing System ensures accurate and stable test data
Embedded computer control system provides safer and more reliable data management as well as test operation
The system can be easily operated by a standard LCD monitor, a keyboard and a mouse; without requiring a PC.
The instrument is equipped with four USB ports and dual Internet ports for convenient input, output, and data transfer

Intelligent

The instrument is equipped with the latest operating software, with user-friendly operating interface and intelligent data management functions. It also supports LystemTM Lab Data Sharing System, which ensures uniform management of test results and test reports.

Intelligent reminding of sensor calibration
Convenient Embedded help document
English or Chinese operating language
Multi-level account control for better data management and protection
Saves detailed data of every test and provides various patterns of test reports
One time value input and the system automatically gives data comparison after each test
Calibration data recovery function to reduce mistaken operation affects
Supports LystemTM Lab Data Sharing System for better data management

Models

WVTR Tester ( Gravimetric Method / Cup Method ) Standard: ASTM E96
	W3/030	W3/031	W3/060	W3/062	W3/0120	C360M	C360H
Method	Water	Water	Water	Water & Desiccant	Water	Water & Desiccant	Water & Desiccant
Test Range (g/m2• day)	0.1-10000	0.1-10000	0.1-10000	0.1-10000	0.1-10000	Water method: 0.01-10000/n(1-6) Desiccant Method: 0.01-1200	Water method: 0.01-10000/n(1-12) Desiccant Method: 0.01-1200
Accuracy (g/m2•day)	0.01	0.01	0.01	0.01	0.01
Resolution(g)	0.001	0.0001	0.0001	0.0001	0.0001
Temperature (?)	15-55?±0.1	15-55?±0.1	15-55?±0.1	15-55?±0.1	15-65?±0.1	20-55?±0.2	20-55?±0.2
Humidity (RH)	10%-98%±1%	10%-98%±1%	70%-90%±1%	Water method: 90%-70%RH Desiccant : 10%-98%RH ±1%	40%-95%± 1%	10%-90%±1%	10%-90%±1%
Test Cup	3 (Ave. result))	3	6	6	12	6	12
Test Area(cm2) / cup	33
Specimen Thickness	≤3mm

Applicable standards

Standards This test instrument conforms to the following standards: ISO 2528, GB 1037, GB/T 16928, ASTM E96, ASTM D1653, TAPPI T464, DIN 53122-1, JIS Z0208, YBB 00092003