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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 10075During 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 4879Could 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 5678Why Differential pressure transmitter is located below the tappings points for steam & condensible vapor flow measurement application?
2 7476how 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 17133how can we measure the pressure in underground cooling water pipeline by using pressure transmitter?what about the tapping position?
2 6932IS 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 6832Post New Instrumentation Questions
How d.p. Transmitter can be applied to close tank?
What is shielding effect?
Derive capacitance to 4-20ma conversion formula / relation in capacitance type pressure sensor?
our kks tagging is crossing more than 12 character please suggest how to take tags in the DCS
how to measure draft pressure in transmitter pl. give its single line digram
What is the reason PT speed not incresed in gas turbine?
Why are the uses 24vdc in industries
Why thermo wells are used? What materials are used in thermo wells?
How u will setup SPI(2007) on Citrix Server (Thin Client Mode)? Plz Justify?
any body who gone thru recent iocl interview.INSTRUMENTATION questions. I need.
how to connect transmitter measuring sulfur process? 1-by using long impulse line or 2- by using coated short impulse line
kindly sent some demo question and answer
NPN transistor, SCR, Zener diode, LED, Varactor diode, Vortex meter, RTD, Resistor, Crystal
Im having problems with interfase betwen SPI v7.0 and SPPID v5.05. Previous versions of Intools shoul be fixed with SPPIDproj.ocx file. It was necessary to replace this file with one that allows the connection between different versions of SPPID. It is necessary in the current version to do the same?Thanks
what are the values of fuel flow rate in various places in boiler.
