Infrared detection method water vapor permeability tester is applicable in water vapor transmission rate tests for plastic film, laminated film, and packaging materials. By testing the water vapor transmission rate, users can control and adjust packaging materials' technical index to meet the different application requirements.
- Characteristics
- Infrared detection principle, controlled by micro-computer, completely automatic testing.
- High in sensitivity, accurate and reliable testing results.
- Three chambers test independently, work out independent results.
- Incessantly test, high in efficiency
- Humidity is adjustable, easy to realize multiple testing condition, no requirements for the testing conditions.
- Novelty sample clamping method, easy and reliable.
- Long-life sensor, easy to replace components.
- Employ world famous quality components, stable and reliable running.
- Friendly human-machine communication, easy to operate and communicate.
- Standard RS-232 communication port.
- Computer controls full procedure, free from human intervention.
- Professional software, testing procedure can be shown through curve, clear and visual.
- Technical data
- Testing range: 0.008 ~ 40 g/m2.24h (normal)
- Testing temperature: 5 ~ 75¡æ (water medium) standard 38¡æ
- Temperature control accuracy: ±0.1¡æ
- Humid chamber humidity: 100%RH, 0%RH, 11¡«98%RH (saturated salt solution)standard 90%RH
- Carrier gas flux: 100 ml/min
- Sample quantity: 1 ~ 3 pieces
- Testing area: 50 cm2 (single chamber)
- Sample size: f100 mm, thickness <1 mm (thicker samples need accessories)
- Carrier gas: 99.999% pure nitrogen
- Power: AC 220V 50Hz / 60Hz
- Mainframe size: 820(L)mm×600(B)mm×425(H)mm
- Mainframe net weight: 80kg.
- Principal
Clamp the sample between dry and humid constant-temperature chambers, there will be humidity difference between the two sides of the sample. This humidity gradation will cause the water vapor todiffuse from the higher humid chamber to the lower humid chamber. In the less humid chamber the water vapor is carried to the infrared sensor by carrier gas, same proportional signal will be produced. System can get the water vapor transmission rate and coefficient through analyzing the digital signal.
- Standards
ASTM F1249, ASTM F372, ISO 15106-2, TAPPI T557, JIS K7129
- Configuration
- System is made up of mainframe, software, and humidity controller. Mainframe fulfills the test, humidity controller produces the test conditions.
- Mainframe, humidity controller, nitrogen tank regulator, porous plate, sample cutter, sealing grease, software, communication cable.
- NOTE:Test gasand distilled water should be provided by users themselves.
