what is the role of proportional in process control?

Answer Posted / rt langley

It is the amount the measurement must change to move the
valve (final control element) fully open or fully closed in
a control system.

Is This Answer Correct ?    1 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the purpose of bypass valve across AS valve.

1651


Sir , i have completed my M.Sc In Instrumentation and presently working in Maintenance department 3 yrs Exp , is there is any possible for work in offshore ..

1387


what is the reason while warning lamp is on while the engine is cranking?

1612


Why ac supply load cell is used? Can we use the dc supply load cell?

590


Which are all the commonly used Bordon tubes in the pressure gauges. Do any one use ASTM A 312 tubes for this purpose?

1306






pls suggest suitable MOC of diaphragm for pressure measurement of UREA grade solution service fluid.

2654


1- Explain about HPM 2- What is the FSC and explain the configuration of FSC 3- explain the complete loop of vibration, how it works (field to control room) 4- What is the use of proxymitter? 5- During job your partner effected with H2S then what you have to do. 6- what type of gland packing uses when valve glind is leaking.

2362


I want to measure and control level in tank of size 10*5 filled with gasoline, so plz give me the solution with clear details. how to select transmitter and sensors.

1753


selection criteria of control valve? and selection criteria of actuator explain in brief?

3642


how many type conductivity sensor ?

1622


How to control flow variations in magnetic flow maters..... When i will provide proper earthing?

1784


Which types of quections asked in interview for FORMULATION PLANT (PHARMA)

6210


can u briefly explain aboutan aryton shunt multirange DC ammeter?

2289


I have energy meter for educational project having 0.5s class but my friend need 0.2s class meter , which one is good for that purpose and what is the actual difference of that two classes , need very easy example also.??

982


How to calibrate H2s Dectector

1183