C303H Water Vapor Transmission Rate Test System

Product Features

Infrared Moisture Sensor

• The Labthink patented technology infrared moisture sensor can obtain lower test limit.
• Designed according to ASTM F1249.
• Long service life, non-consumable.
• It has the functions of over limit alarm and automatic protection.

Accurate Data

• Using 360 ° air circulation constant temperature technology, the temperature stability is better.
• Equipped with high-precision temperature and humidity sensor for real-time monitoring and recording temperature and humidity changes.
• In the test process, the automatic control of flow, temperature and relative humidity is realized, and the accuracy is higher.
• It can achieve higher test repeatability of 0.005 g / (m²·day) .

High Efficient Three-chamber

• Independent three sets of 50cm² standard area test chamber, in line with the standard requirements of parallel sample detection.
• Three samples are tested at the same time under the same condition, and the data are independent of each other.
• In the same test cycle, the testing number of samples completed increased from 2 to 3.
• Automatic sample clamping, saving time and effort, realizing consistent clamping force and better sealing.

Intelligent Control

• The 12 Inch Touch panel of Windows system is used to control, which is more convenient.
• Automatic mode: input the test temperature and humidity, click one key to start the automatic test.
• New drawer type test chamber, one key automatic in and out, sound and light reminder.

Safe and Reliable

• Safe running: the unique high-end industrial computer of Labthink is embedded to eliminate the system failure caused by computer virus, and ensure the operation reliability and data storage security.
• Safe operation: equipped with optical and other intelligent sensors, sound and light alarm and other intelligent alarms to ensure the safety of operation.
• Safe Performance: the instruments are made of world famous brand components, stable and reliable.

Powerful Functions

• Professional test mode provides flexible and rich control functions to meet the needs for scientific research.
• Provide water vapor transmission curve, water vapor transmission coefficient curve, temperature curve, humidity curve.
• Ultra wide test range, meet the barrier test of various materials. (Customized)
• Ultra wide temperature range to meet the permeability tests at different temperatures. (Customized)

Testing Principle

The pre-treated sample is clamped between the test chambers, the nitrogen with stable relative humidity flows on one side of the film, and the dry nitrogen flows on the other side of the film; due to the existence of humidity difference, water vapor will diffuse from the high humidity side through the film to the low humidity side; on the low humidity side, the water vapor is carried to the infrared water sensor by the flowing dry nitrogen, and different water vapor is generated. The concentration produces different light signals, and the concentration value is obtained through analysis and calculation, and then the water vapor transmission rate of the sample is calculated.

Reference Standards

ASTM F1249, ISO 15106-2, GB/T 26253, JIS K7129, YBB00092003-2015