W402Water Vapor Permeability Analyzer
Function and usage
W402 Water Vapor Permeability Analyzer is using Infrared sensor method, is a high precision testing equipment with machinery, electronics, software. Used in the water vapor permeability analysis of plastic film, composite film, sheet, metal foil and plastic, rubber, paper, glass, , bottle, bags, cans, boxes and other packaging container.
Through PC connect, this equipment supported by professional software which can real-time control, parameter setting, test results preservation and printing.
Standards
ISO 15106-2, ASTM F1249, TAPPI T557, JIS K7129
Working principle
Using infrared sensor method. The sample divide the chamber to up chamber and down chamber. The Nitrogen with stable humidity flowing in the up chamber, dry Nitrogen is flowing in the down chamber; Because the differential of humidity, water vapor will transmit from high humidity chamber to the low humidity chamber through the sample. The water vapor through the sample will carried by the dry Nitrogen to the infrared sensor. Through the sensor output signal of sample can reach water vapor transmittance parameters. For packaging container, dry nitrogen is flowing in container, outside the containers is high humidity condition
Features
Infrared sensor method.
Use USB to connect the machine with the computer, the machine is with 2.4 "true color" touch screen, can set the parameters, display the testing curve and report. The machine is with operation system, can operate independently(without computer).
Adopt international advanced electromagnetic temperature control technology, and the program step by step system can control temperature elevating freely, without external accessories, temperature control precision accurate to 0.1 º C.
Humidity control with double gas flow humidity method control, with high precision, stable humidity.
A, B two chambers test.
Have the function of double cavity pressure control, automatic pressure equilibrium. Automatic judgment, automatic stop
Sensor automatic protection
Test process is automatic monitoring. Curve of transmission rate, humidity, water vapor concentration, temperature automatic recording, continuous display
Can monitor test parameter's effect to the result
Embedded computer system platform
Modular function, testing, calibration are independence, good ability of data analysis, the Operation is very convenient
Equipped with packaging film test adapter accessories can test the high permeability membrane.
Add package film test accessories can test high barrier film.
Add package test accessories can test the WVTR of bottles, bags.
Easy-to-use interface.
Can check, edit and print the test report.
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Measurement range |
0.05 ~ 100 g/m2·24h(film ,wish mask can be 0.02~1000 g/m2·24h)
0.0001 ~ 0.5 g/ pkg·d(package bag and bottle,wish mask can be 0.00001 ~ 0.07g/ pkg·d, optional) |
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Temperature control range |
15~45°C |
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Temperature control accuracy |
±0.1°C |
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Humidity control range |
0%RH,30%RH~90%RH,100%RH |
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Humidity control accuracy |
±2%RH |
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Number of testing specimen |
2pcs |
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Specimen dimension |
108 mm x 108 mm |
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Testing area |
50 cm2 |
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Specimen thickness |
≤2mm |
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Carrier gas |
Nitrogen |
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Carrier gas pressure |
0.03-0.06mpa/40.6psi |
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Carrier gas flow |
0~200 mL/min |
