1. ADVANCE COE,CHAT-03 ->Pressure ->Temperature ->Flow ->Level ->Analytical Instruments ->Electrical Instruments ->Transmitters, Convertor, Recorder ->Controllers & Control Valves ->Advanced Electrical & Digital Electronics ->Master Instruments ->Unit Operation ->Unit Process List of lesson

2. ADVANCE COE,CHAT-03 ->- Controller is the “master” of the process control system. -External control of the process is achieved by devices. -Devices(specially):- (1)Designed (2)Selected (3)Confired For its applications point of view. Other inputs Final control element-affects the flow in the piping system of the process. Set pt. Output

3. ADVANCE COE,CHAT-03 Final control element (Interface bet.) Process Controller Process Controller Electronic Controller Pneumatic controller Electronic controller:- Use:-all of the electronic process controllers are micro processer based devices.

4. ADVANCE COE,CHAT-03 -Processer allows-various types of input/output signals -Controller-depending on ->its type ->uses sufficient ROM ->uses RAM For the perform of the controller function Pneumatic Controllers= Automatic controller that uses pneumatic pressure as a power source & generate a pneumatic output pressure. Use=-single loop control application -Areas where (1)it would be hazardous to use electronic equipment (2)in location without power. CONTROL VALVES:- CV->To control of flow. CV consists:- -valve -an actuator -one or more valve control devices.

5. ADVANCE COE,CHAT-03 Valve are as below:- (1)Globe valve: - most common liner stem motion control valve. (2)Angle valve :- alternate form of GV -often share the same trim options and have the top entry bonnet style. Use-Direct impingement of the process fluid on the body wall is to be avoided. (3)Butter fly valve :- Use=to throttle dry or slurry solids. (4)Ball valve:-Get there name from the shape of the closure member. Its uses a fully spherical member with a cylindrical bore through it.

6. ADVANCE COE,CHAT-03 Special application valve:- Digital valves:- True digital valves consists of discrete solenoid operated flow ports that are sized according to binary weighing. -valve can be designed with sharp orifices or with streamlined nozzles. Use:-flow metering.

7. ADVANCE COE,CHAT-03 DCS(DISTRIBUTED CONTROL SYSTEMS:- -DCS was first applied to process control in 1959 -In 1970s,a process cotrol architeture referred to as a dcs was -Introduced and almost instantly became a commercial success. -A dcs consists of some number of microprocessor-based nodes That are interconnected by a digital communications network, Always called data highway. -Data highway:- -Application-cascade control and multivariable control.

8. ADVANCE COE,CHAT-03 PLC(PROGRAMMABLE LOGIC CONTROLLER:- -It was first digital technology to successfully compete with conventional Technology in industrial control applications. -Early developed in 1970s for applications within the manufacturing Industries. -PLC proved to be superb for implementing discrete logic.