DEVICE FOR REPRODUCTION AND TRANSMISSION OF UNITS OF MASS CONCENTRATION OF GASES IN LIQUID MEDIA Russian patent published in 2020 - IPC G01N27/00 

FIELD: measuring equipment.

SUBSTANCE: invention relates to the field of measurement equipment, namely to devices for reproduction and transmission of units of mass concentration of gases in liquid media, intended for calibration and calibration of gas analyzers and other analytical instruments, which measure content of dissolved gases in liquid medium. Device for reproducing and transmitting units of mass concentration of gases in liquid media, based on preparation of reference fluid solutions by equilibrium thermodynamic liquid saturation with gases, comprises a working chamber for preparing solutions, thermostatic device, reference liquid temperature meter and reference gas pressure meter, system of gas mixtures supply, including cylinders with calibration gas mixtures and inert gas, gas line and gas pressure and flow regulators installed at the working chamber inlet and outlet, wherein the apparatus further comprises a vacuum pump, a liquid line, gas flow rate and liquid flow rate meters, a liquid flow stimulator, a flow rate regulator and a liquid pressure meter; working chamber is made in the form of a membrane module separated by a lyophobic semipermeable membrane on the gas and liquid cavities, connected by inputs and outputs to the gas and liquid lines, wherein the gas output of the module through the reference gas pressure meter, the flow rate regulator and gas flow meter is connected to the vacuum pump; a liquid flow rate stimulator through the thermostatic device and a liquid pressure meter is connected to the liquid inlet of the membrane module, the liquid outlet of which through the reference temperature meter and the liquid flow rate controller is connected to the liquid flow meter, wherein output of said meter is configured to be connected to verified analyzer.

EFFECT: expansion of the device functional capabilities.

1 cl, 1 dwg