Control And Regulation Study Unit

A solution flows, by falling, into mixing tank where also a noise solution is sent by falling from tank called Noise. Thanks to solenoid valves and and manual valves and the control the two flows is achieved, and measured directly by means of flow meters and. The purpose of the process is to control the pH of a solution initially held in tank called Main. Stirrer allows to get homogeneous solutions inside process tank. The pH of the solution present in mixing tank is measured by means of probe converted into electrical signal and supplied to electrical unit by means of signal transmitter. From sampling tank it is possible to take a sample of the controlled solution held in tank in order to measure the pH with other gauges.