Pressure control trainer is designed forunderstanding the basic principles of pressure control. The process set upconsists of pressure vessel fitted with pneumatic control valve. Pressuretransmitter is used for pressure sensing. The process parameter (Pressure) iscontrolled by microprocessor based digital indicating controller whichmanipulates pneumatic control valve fitted at outlet of pressure tank outletthrough I/P converter. These units along with necessary piping are fitted onsupport housing designed for tabletop mounting. The controller can be connectedto computer through ethernet port for monitoring the process in SCADA mode.