Answer / k.ksharma

We have calibrate the cv ,using by I/p & positinor input signal 4-20 ma in I to p .positinor given the feed back to set point.

what is the difference between the microcontroller and PLC?

9 Answers   HAL, Havells,

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key exchanges in wpa,wpa2,tls

0 Answers  

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Describe how to calibrate various types of instruments and transmitters using ISA industrial consensus standard techniques.

4 Answers   Reliance,

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what are the possible reasons if a control valve fails to open/close?

1 Answers   DEWA,

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A motor is taking 15 Amps at no load and 60 Amps at full load. and a valve has to open 10% at full load and 80% at no load. How to draw ladder logic.(PLC).

2 Answers  

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if we put any thermocouple on a table in a room without any connection,what temperature should it show.

3 Answers  

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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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why we are using negative range like -750 to 0 mmwc in closed tank?and what is the reason can you explain clear?

2 Answers   Aarvi Encon,

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Why flow/pressure transmitter before control valve?

0 Answers   UPL,

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Reasons for using current as signal

1 Answers  

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why do we use 4-20mA as o/p and why don't use 0-20mA or 5- 21mA?

3 Answers  

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WHY TEMPERATURE TRANSMITTER USED AS WE CAN CONTROL THROUGH THERMOCOUPLE/RTD

5 Answers   Samsung, Thermax,

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