Detailed explanation of the principle and application of automatic controllers

Ruike Tongheng focuses on the research and development of various types of chromatographic control valves and gas and liquid sample injection controllers, continuously optimizing and upgrading the quality and performance of products. The series of products sold have received high praise from a wide range of users.

The controller is applied for laboratory chromatographic analysis and online detection to adapt to complex industrial field environments. Set up automatic collection program control for multiple samples, which can be used synchronously with the chromatograph and chromatographic workstation. As shown in the injection chromatogram in the video. It is necessary to cooperate with the chromatograph for sampling, injection, gas path switching, and column blowback analysis.

It consists of an electric sequence switching valve, a float flowmeter, a human-machine interaction interface, and a communication control circuit. As shown in the video, the sequence switching valve is operated through the LCD screen to select different gas source inputs, and the sample gas or liquid is quantitatively sent to the chromatographic detection stage. The working status is uploaded through the 485 field communication bus. It can not only be used to control the electric switching valve for automatic continuous cycle gas path switching, but also manually switch individual gas paths one by one.