Post New Answer View All Answers
Describe the typical instrumentation used in monitoring the performance of a shell and tube heat exchanger.
WHAT IS THE CAM POSITION IN CONTROL VALVE POSITIONER ? WHY IT IS USED?
What are the materials available to prepare individually for competetive exams in Instrumentation field? Plz reply...
How digital input and digital output 's are working in dcs
I m appointed as an automation trainee engineer in small firm in that I am only the one , my company give me a project on s7-200 as i m beginner I don't know how to program so please send me the helpful site so that I complete my project before deadline....please help me out in this critical situation.
A PLC is programmed to drive three motors A, B and C as follows : After running motor A for an hour, motor B should get ON and motor A should get OFF. And after running motor B for an hour, motor C should get ON and motor B should get OFF. And after running motor C for an hour, motor A should get ON and motor C should get OFF. (That is, a cyclic repetition with time period one hour) Now, the second condition is: If any motor gone faulty and is tripped, the consecutive motor should get ON and the faulty (tripped) motor should be eliminated from cyclic repetition. The remaining two motors should bear the cyclic repetition of one hour each. (For healthy motor take logic as high and for tripped motor take logic as low) Now, the third condition is: When motor A load(Amps) exceeds 60% of its rated load, motor B should get ON in parallel to motor A. And when both motors A & B are running in parallel, and if their load exceeds 60% of their rated load, motor C should also start in parallel to A & B. [Here the cyclic repetition is eliminated, until their loads become normal(40%)] [Take logic high(1) for load at 60% and logic low(0) for load at 40%] Now draw a flow chart or a ladder diagram to fulfill the above condition.
why we are using drum level control valve air to close?
What is stripper & spilitter ? Diffrence in this.?
1. what is modbus cable? 2. what kind of communication we are using for the interface of DCS, ESD and Third party cabinets? 3. What is serial communication and peer to peer communication?
what is easiest way to read STL language in PLC?
Hi Friends , i need one urgent help , i am preparing for M.tech entrance examination , i need some obejective questions related to instrumentation field. where can i get those ? can anyone help me pls ?
Working principle of magnetic flow meter ......and calibration procedure of e+h magnetic flowmeter...
Explain an adaptive / self-tuning controller’s major draw card.
Derive capacitance to 4-20ma conversion formula / relation in capacitance type pressure sensor?
Draw block digram for well head from well to shipping pump?
