What is open loop checking and close loop checking
Answer Posted / iyyappan.m
Open loop is a only one transmitter here is no control of valve or anything.
Closed loop is a Pid loop ,transmitter control the control valvewith operator desired setpoint.
| Is This Answer Correct ? | 19 Yes | 4 No |
Post New Answer View All Answers
What is furnace draft control?
What is the diffrence between ff tx and non ff tx
how to work MIL contol valve posistioner ?
what is scale factor of proximitor & unit of the vibration.
Full form of KKS when use DCS.
please tel me the calibration of pneumatic controler.
i need some objective type questions in instrumentation
hey any one got the papers of SAIL and HPCL plz do help me by posting them to my mail ID's naren07_87@yaho.co.in, surenarendra@gmail.com
i want to find out iffco get test paper
what is the working principal of pribe
1. For Steam drum level signal, why do we compensate with drum pressure signal? 2.For main steam Flow signal is comensated with main steam temperature signal and main steam pressure signal why?
why direct mounted pressure transmitters is always installed with DBB ( double bleed block) valve in process line or top of the tanks ?
How to change dcs card in online. (Dsc is maxdna)
what is intrinscily safe system and where we use?
Explain the key components of control loop?