Water Vapour Permeability Tester LWPT-T2012

Introduction

Water Vapour Permeability Tester measurement range of 0.02 to 10,000 g/(m²·24h), and uses cup method for testing. It employs highly accurate weight, temperature, and humidity sensors, ensuring reliable data acquisition. The tester uses cup method and has a control system for precise temperature regulation. Its dehumidifying chamber provides accurate humidity control. Our tester is suitable for industries requiring precise moisture permeability testing.

This water testing equipment is designed to meet the rigorous requirements of modern laboratory operations, ensuring high precision, reliability, and ease of use for various experimental applications.

Applications

Our Water Vapour Permeability Tester is used in industries such as food packaging, pharmaceuticals, and material research to measure the water vapor permeability of plastic films, sheets, and packaging materials. It ensures accurate moisture barrier evaluation for product protection and quality control.

Specifications

Method	Cup method
Measuring Range	0.02 to 10,000 g/(m²•24h)
Systemic Resolution	0.0001 g/ (m²•day)
Test Precision	0.02 g/(m²•24h)
Sample Quantity	1
Temperature Range	5 to 55℃
Temperature Control Precision	± 0.1℃
Experimental Humidity	0 to 50% RH
Humidity Accuracy	± 1% RH
Power Supply	220 V 50 Hz
Test Area	About 51.53 cm3
Net Weight	40 kg

Features

RS232 port

Independent test chamber

Standalone and computer functionality

Touchscreen operation

Automatic error correction

Dessicant in top cover cavity

FAQs

1. How does the Water Vapor Permeability Tester measure water vapor transmission?

Water Vapor Permeability Tester operates based on the cup method, where a moisture-permeable cup containing distilled water is placed inside a controlled test cavity. The electric heating device raises the temperature within the cavity, causing the water to evaporate. A desiccant inside the cup absorbs the evaporated water vapor, and the system continuously measures the weight change over time. This change is used to calculate the water vapor transmission rate () of the test sample. The instrument employs high-precision sensors and a -controlled temperature system to ensure accurate and consistent measurements.

2. What industries benefit from using this Water Vapor Permeability Tester?

Several industries benefit from our Water Vapor Permeability Tester. The food packaging industry uses it to determine the moisture barrier properties of plastic films and other packaging materials, ensuring extended shelf life and product freshness. The pharmaceutical industry utilizes it to test packaging materials for medicines, ensuring that drugs remain stable under different humidity conditions. Additionally, research institutions and material testing laboratories use the device for studying the permeability of various materials and improving product quality.

3. Does the Water Vapor Permeability Tester require a computer connection?

This Water Vapor Permeability Tester can function both as a standalone system and with a computer connection. When used independently, it features a touchscreen interface that allows users to control the test parameters and view real-time results. However, for advanced data analysis, report generation, and storage, the device can be connected to a PC via an RS232 interface. The accompanying software enables users to monitor test results, adjust parameters, and export data in formats such as Word and .

4. Can test results be exported and saved?

Yes, the Water Vapor Permeability Tester is equipped with software that allows users to export test results for further analysis and documentation. The software supports exporting data in Word and formats, making it convenient for users to create detailed reports. Additionally, real-time data visualization, dynamic curve contraction, and historical data storage help in tracking long-term trends and comparing different test samples.

5. How many samples can be tested at once?

Water Vapor Permeability Tester is designed to test one sample at a time, with a test area of approximately 51.53 cm². While it may not accommodate multiple samples simultaneously, its high precision and automation features ensure quick and efficient testing. Users can perform consecutive tests on different materials without significant downtime, making it a reliable tool for quality control in packaging and material research industries.