This instrument is based on the cup method, and is professionally applicable to the water vapor transmission rate test of film specimens.

It is equipped with three individual test dishes and the testing process is completely automatic and conforms to international standards.

• Standard periodically weighing method.
• Wide range and high-precision of automatic temperature and humidity control to support various combinations of non-standard test conditions.
• Standard air velocity enables constant humidity difference between two sides of test dishes.
• Convenient fast-access calibration port for temperature and humidity.
• Reference film or standard weight for fast and accurate calibration.

W3/031 system adopts Labthink's latest patent-design mechanical structure to get precision test data during weighing process.

It also utilizes the embedded computer control system that provides a better performance than traditional single chip system.

• Mechanical Weighing System ensures accurate and stable test data.
• Embedded computer control system provides safer and more reliable data management as well as test operation.
• The system can be easily operated by a standard LCD monitor, a keyboard and a mouse; no PC required.
• The instrument is equipped with four USB ports and dual internet ports for convenient input, output, and data transfer.