Answer / modi mehul p.

when positioner fail at that time we use by pass on a
positioner..... and in spilt range controller we cant used
bypass on a positioner.......

Answer / fariba

By-pass option allows positioner to be removed without
disturbing the control valve operation.

Define the difference between a stable versus an unstable controlled system and some of the tools you might use to be able to detect when this is happening and assumptions used for control system application design that could contribute to instability

0 Answers  

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what is modbus & what signals are taken through it

2 Answers  

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If hart communicator provide 4-20ma source to any transmitter during the callibration?

3 Answers   Hyundai,

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what is the resource block mode in foundation field but ? what is advantages for this

1 Answers  

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how to use one 4-20mA signal for two indicater or controller & give necessary precaution.

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How to check electrical health of Vibration probe?

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In Increasing temperature why thermocouple used and RTD is not used. Both RTD and Thermocouple have in Range of uses.

5 Answers   L&T,

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why we are using analytical instrument in plant ?

1 Answers  

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What is the main difference between the terms instrumentation and Automation?

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The DCS stand for________________________. it is composed of the following major components: a:______________ b:______________ c:______________ d:______________

2 Answers  

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can i calibrate DP transmitter online (while Tx in Service) if yes ,how?

1 Answers   CEPC,

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What is the working principle of Bentley Nevada 3300

1 Answers   SMIT,

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