what is three element loop

Answer Posted / chris

You nee to be specific, is it -
A) A 3 element loop?
B) 3 elements of a loop?

A) Normally used for boiler control.

B) 1. Detection (Element)
2. Control (controller)
3. Correction (valve)

Is This Answer Correct ?    2 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How can i test procedure grounding for CAT-7 cable? Or How can we test procedure CAT-7 Cable Electrically safe?

2515


What is critcal speed. what is resonant frequency. why we want to cross crtcal speed on higher RPM (early).

1676


what is the working principal of pribe

1809


What is modbus?

669


Decibel.

2082






In VVVF DRIVES VOLTAGE IS ALSO VARY WITH THE FREQUENCY. HOW? WHAT IS THE DIRECT FORMULA RELATING THESE TWO.

1894


What are the key features of a Distributed Control System? describing the various layers (sensor through to business system interfaces) as well as the hardware, software and security aspects of the DCS.

1796


how to check earthing,what is minum ohms for proper earthing

1512


What are different types of orifice plates?

631


the whole paper was based on Transducers..questions like define repeatability, error,accuracy,precision..den there were many q. on the conversion of Pa to mmHg and other units.. also..der wer few Q. on some level sensors(with diagram)

1540


How to change dcs card in online. (Dsc is maxdna)

2143


How oil line flow measured?eplain about instruments used and working principle?

1544


what is interface level measurement.who can calibrate interface level measurement transmitter online

1983


can anyone tell me about the basic concepts to consider before to start a PLC panel wiring

1504


which type of signal used in instrument?

8581