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Working Principle
The analyzer uses an infrared detection sensor method. The test sample separates the testing chamber into upper and lower rooms. Humid gas flows through the upper chamber while dry gas flows through the lower chamber. Water molecules pass through the sample from the upper to the lower chamber, where the infrared sensor measures the water vapor density to calculate the water vapor transmission rate.
Standards
GB/T 26253, ISO 15106-2, ASTM F1249, TAPPI T557, JIS K7129
Features
• Two independent chambers with separate test data.
• Fully automatic testing, auto-judgment, and auto-stop functionality.
• Built-in operating system allows standalone operation without a computer.
• LCD screen with a Windows-style interface for real-time data display and mouse-based operation.
• Advanced electromagnetic temperature control technology with precision of 0.1°C.
• Double gas flow (wet and dry) system for humidity control, no external accessories required.
• High precision suitable for testing aluminum foil.
• Expandable test range up to 1000 g/m²·24h (optional).
• Capable of testing packaging containers like bags, bottles, and bowls (optional).
• Sensor over-range protection for safety.
• Can be expanded to up to 12 test chambers.
• Professional software with a user-friendly interface.
• Flexible test process settings.
• Real-time display of transmission rate, water vapor density, humidity, and temperature curves.
• Ability to zoom and move curves for detailed analysis.
• Professional test reports that can be exported in Office or PDF formats.
• Calibrated using standard films for accuracy.
Software Interface
Specifications
Test Range
0.001~100 g/m²·24h (film and sheet)
0.00005 ~ 5 g/pkg·24h (packaging container)
Test Precision
0.001 g/m²·24h (film and sheet)
0.00001 g/pkg·24h (packaging container)
Temperature Range
15~45°C (5~50°C optional)
Temperature Precision
±0.1°C
Humidity Range
0%RH, 30~90%RH, 100%RH
Humidity Precision
±1%RH
Gas Source
Nitrogen, purity 99.999%, ≥0.1 MPa
Gas Flow Rate
5~120 ml/min
Gas Port
Φ3mm gas pipe
Test Area
50.24 cm² (can expand to minimum 0.785 cm²)
Sample Size
Φ100 mm
Sample Thickness
≤2mm
Instrument Size
62×55×46 cm
Configuration
Â
Water Vapor Permeability Analyzer, software, communication cable, power cable, sample cutter, gas pipes (2 pcs), pipe connectors (4 pcs), copper plates (2 pcs), sealing pad rings (4 pcs), sealing grease, syringe, spanner, mouse, Standard Films (1 set)
Optional: pressure releasing valve, computer, external fittings for expanding test range, external fittings for packaging container test
User provides: gas source
 sample cutter           pressure releasing valve
Labthink Paper and Board Products Water Vapor Penetration Tester
Model NO.: PKT-W402
Trademark: Xiangyi
Origin: China
HS Code: 9031809090
Model NO.: PKT-W402
Trademark: Xiangyi
Origin: China
HS Code: 9031809090
The PKT-W402 Water Vapor Permeability Analyzer is designed to measure the water vapor transmission rate of various materials such as plastic films, composite films, aluminum foils, thin sheets, rubber, porcelain, solar panels, and medical patches. This advanced device ensures accurate and reliable results for quality control and research purposes.