High-precision micro-sampling enables multiple micro-samplings without disrupting system equilibrium, for measuring phase equilibrium parameters of various gas mixtures within 100K to room temperature.

The VLE2400 Low-Temperature Phase Equilibrium Tester is developed based on the static analysis method, with a minimum testing temperature of 100K. The equipment achieves system equilibrium through mechanical stirring and is equipped with a high-precision micro-sampling system inside. Controlled by software, it can perform multiple rapid micro-samplings on gas and liquid phase components respectively without altering the composition content of the mixed system. It is connected to a chromatograph for sample injection and analysis. The equipment features high temperature measurement accuracy, a wide pressure measurement range, and precise measurement. Combined with independently developed programs, it can realize automatic temperature control, automatic pressure boosting, automatic sampling, and data analysis, and can be used for measuring phase equilibrium parameters of various pure substance/binary/ternary mixed gas systems.

Key Features

l Ultra-low temperature measurement: Minimum temperature can reach 100K；

l High temperature control precision: Temperature fluctuation is less than ±0.05 ℃, ensuring experimental stability;

l Accurate temperature measurement: Temperature measurement accuracy reaches ±0.02 ℃, ensuring reliable temperature data;

l  Accurate pressure measurement: Equipped with a high-precision pressure sensor, with a measurement accuracy of less than 0.04% FS (higher precision can be customized);

l  Wide pressure measurement range: Pressure range is 0.5~10 MPa, and higher pressure can be customized;

l High degree of automation: Capable of automatic temperature control, automatic temperature measurement, automatic pressure measurement, and data processing；

l Automatic sampling: Enables high-precision quantitative sampling and analysis for multiple times with one injection, featuring short experimental time and stable experimental results.