I have 475 hart communicator. this is not support any new type of instruments such as tranmitter,fieldvue DVC6200.DVC 200 since i got point out need to upgrade . my questions is how can upgrade new instruments software in my 475 hart communicator. can any answerplease>?

1 Answers  

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in transmiters(rose mount) how to check output 4-20ma ? and input 24v? i need exact explanation?

2 Answers   Adhunik,

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In a gas over oil actuator, after the opening/closing of valve, how the gas is vented out? How does the hydraulic/gas circuit function?

0 Answers   Reliance,

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What types of thermocuple are mostly used?

6 Answers  

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how many pulses are required by a ac induction servo motor of 4 poles with 50 Hz frequency to rotate by 1 degree?

0 Answers   United Phosphorus,

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what is the calibration procedure for transweigh make weigh feeder?

0 Answers   Anjani Cements,

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Turbidity analyzer working principle ?

0 Answers   Tata Steel Limited,

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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 =

0 Answers  

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our kks tagging is crossing more than 12 character please suggest how to take tags in the DCS

0 Answers  

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Explain any simple temperature control system.

3 Answers   HGJ, L&T,

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What is the purpose of bypass valve across AS valve.

0 Answers   ADMA OPCO,

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what is meant by Hydroelectric powerplant?

0 Answers  

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