in a electronic controller why we are using 250 ohm resistance in input signal?is i/p is necessary in control valve when we are using electronic controller give details?
IOCL,
3 10308During valve sizing from all calculation you got flow coefficient CV 12,than what it means? like for selecting pressure transmitter if your MAWP is 12 bar than you select a capsule of max. 20 bar which cover your mawp 12 in same way for selecting control valve If CV is 12 than how we use it in selecting valve??????
1 5037Could you explain to me the enraf (servo gauge) mechanism. How it works ? and how it is working on archimedes theory while it's not immersed into the surface? and how can we calibrate it ? Thanx
1 5841Why Differential pressure transmitter is located below the tappings points for steam & condensible vapor flow measurement application?
2 7666how to connect 3 wire 4-20 mA transmitter in Plc system PLC system and how explain how the measuring data communicate with plc system.
1 17294how can we measure the pressure in underground cooling water pipeline by using pressure transmitter?what about the tapping position?
2 7122IS IT POSSIBLE TO CALIBRATE A LEVEL TRANSMITTER INDICATOR(ABB) USING HART COMMUNICATOR.? I MEAN TO CHANGE FROM ONE UNIT TO ANOTHER WITHIN INDICATOR (EG. INCH TO FEET)...? PLZ NOTE THAT I HAVE MADE THE UNIT CHANGE IN TRANSMITTER USING HART COMMUNICATOR..BUT WHAT ABOUT THE INDICATOR..?
2 7016Post New Instrumentation Questions
send me model hpcl questions pleas..........my mail id mohideen.dharvesh@gmail.com
can any send me a forbes marshall dtron 316 manual
Can any body help to get Rsemulator 5000 free from internet if possible then give me any link or any help .
can any one tell me when ongc placement test and its forms is available????/ pls tell me if u know
What is the Working principle of Dozing valve?
hye SAM acn u send your e mail id, so that i can solve my query through e mail?
plz you help about Que paper of mahagenco previous your,any model paper relad to it{maharastra power genration}
Can any one tell me what type of question asked for instrumentation and control interview panel??? pls mail ramashankar.goel@gmail.com
this site is owned by an nonsense
Questions on flow meters,few questions on HART protocol,
i hav applied for the post of engg. in iocl so please require the past test papers fro instrumentation engg please please help me and send me the papers or tell me the pattern and type of ques asked in examination......
hello can yoy pls send me previous papers of jindalpower and steel ltd.....'m from instrumentation..... mani1048@gmail.com
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.
hello friends, can you please send me the model paper or question paper to be prepared for hpcl examinations????????? You can mail me at rahim_here@yahoo.com waiting for your reply........... help me .. plz.....
give me all the details about the interview and which type of question being asked
