What is the logic a Transmitter control a Control Valve?
How the signal going to the Control valve?
What are systems/Panels/cables/signal used to control valve
from Transmitter?
Answers were Sorted based on User's Feedback
Answer / gopalakrishnan
IT IS THE CLOSED LOOP ,TX SIGNAL GOING TO THE CONTROL VALVE
THROUGH THE CONTROLLER (DCS) MARSHALLING PANEL -AND TO THE
FIELD JBS AND TO I/P(CURRENT TO PNEUMATIC CONVERTOR AND
THEN TO THE CONTROL VALVE IT IS THE CONTINOUS PROCESS.
Is This Answer Correct ? | 10 Yes | 0 No |
Answer / praveen kumar
Well Transmitter Measures the process, and Control valve
will control and this is closed loop. The loop from
Transmitter to JB to MRack to CP and the signal is 4~20mA
but in Control valve we have I/P where the signal will
converted to Pnuematic ok
Is This Answer Correct ? | 8 Yes | 0 No |
Answer / satish
TRANSMITTER WILL GIVEN OUTPUT TO THE CONTROLLER THROUGH
MARSHLLING PANEL THATS CALL PROCESS VALUE,CONTROLLER WILL
GET PROCESS VALUE AS PER CONTROLLER SET POINT THAN FROM
MARSHALLING PANEL THERE IS TWO WIRE/FOUR WIRE SYSTEM AS PER
MARSHALLING CONNECTION OUTPUT WILL GO TO THE CONTROLL VALVE
THAT CALL MANIPLATED VALUE (MV)
Is This Answer Correct ? | 1 Yes | 2 No |
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