what is the formula for changing Range of Transmitter from X mmwc to some Y mmwc with respect to DCS NCMH flow range from x NCMH to y NCMH?
HCL,
1 4743i feel sq. pipe is better than round pipe pls give comment for this. advance thanks for reply
3 4542Why use ball valves on Gas pipelines instead of gate & or globe valves...means basic diffrence or use of these valves..how designers knows this type of valve with rating is required...
1827Can you tell me how we will select RTD and Thermocouples for Temperature applications. I.e How we will choose accurate one for a specefic operation if both having same ranges
3 7431Post New Instrumentation Questions
what are the diff. in servo and regulatory control?
can any one tell me when ongc placement test and its forms is available????/ pls tell me if u know
Q1: Consider part of a control loop, which excludes the transmitter, consisting of a process, a controller and a control valve which may be represented by two dead times of 0.5 min each and three exponential lags of 0.8 min., 1.0 min. and 1.5 min. respectively. We wish to express this system as an overall first order plus dead time (FOPLD) model ie gain, time constant and process dead time. (We will see later that this is often done, to simplify controller tuning). For this exercise, gain is considered to be 1.0. (A) If the transmitter is a flow transmitter whose behaviour can be described by a dead time of 0.2 min. and an exponential lag of 0.5 min. in terms of the overall dead time and overall first order lag how can the system behaviour be approximated ? Overall dead time = Overall time constant = (B) If the transmitter is a temperature transmitter with a temperature sensor in a protecting well whose behaviour can be described by a dead time of 0.7 min. and an exponential lag of 15 min. how can the overall system behaviour be approximated now? Overall dead time = Overall time constant =
Why we are using reverse action in displacer types level transmitters on some Vessels?
In turbine what does term CDP, NH, HSSOC means.
Explain how thw analog to digital converter works with the circuit diagram
Why do you want to work here
In most instances, Inertia processes are quite uncommon. Give an example of a combined Resistance and Capacitance situation.Describe an application, which according to your understanding of the subject matter, comprises of both Resistance and Capacitance effects.
Why plc require in analog input 4-20amp & 0-10 volt?
how to rectify the poor signal strength in utrasonic digtial flow meter ,model:ge digital xce868i
Explain why plc require in analog input 4-20amp & 0-10 volt?
Name different parts of a pressure gauge. Explain the use of hair spring in the pressure gauge.
what is o2 analyzer and how it measured ,what is the role of this analyzer in cfbc boiler...
how do we commission inergen system?
need instrumentation job completed 1 year trainee ship in mnc pesticide company. now in search of job
