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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 10220During 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 4957Could 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 5768Why Differential pressure transmitter is located below the tappings points for steam & condensible vapor flow measurement application?
2 7586how 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 17229how can we measure the pressure in underground cooling water pipeline by using pressure transmitter?what about the tapping position?
2 7050IS 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 6943Post New Instrumentation Questions
If P will increase then what will happen with PID?
IS there any effect of vortex in low pressure side of the transmiter after the orific in feed water line? if yes then what is the calculation?
Displace type LT to be calibrated in workshop, wt. 40, dia- 60 mm, density- 0.8kg/cm3.
Hi Friends i am going to write BARC written test by this month 20th (20-5-2008). So please if any body knows the details about this or having previous question papers pls mail me to kkumarei@gmail.com. For Suggestions give one message to 9962122264
what is a good line as ic engineer as maintenance ,oc, project, calibration ,validation engineer?
what is use of communication wire in multipare cable(oil and gas field), why this communication wire not used in single pair cable?
Can anybody tell me which type of question are asked in the interview for the FORMULATION(Pharma) as a instrumentation engineer, & question in building managment system.
How to calculate mmwc values into tonnes?
Which is your favourite subject & explain any one topic of it.
why we use the ac supply load cell>?can we use the dc supply load cell?advantages and disadvantage of the ac supply load cell?
How to calibrate H2s Dectector
what is stroke check for field instument transmetter's & AOV's
Somebody can explain me about >Critical Loops, calibrations, ESD critical Loop checks, Logic Diagram / Cause & Effect checks for ESD loops,
HOW TO CHOOSE FREAQUENCY IN FMCW TYPE RADAR INSTRUMENTS. DESIGN BASIS OR DESIGN CALCULATONS ?
How can measure flow in oil line?which type of transmitter is generally used?
