what is the difference between PLC & DCS

17 Answers   L&T,

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If a control valve is hunting means means if we are giving 50% to the cv, the cv will open at 51% then slowly slwoly it will reaches 49% , so what to do for solve this problem. The cv is double acting and mounted for anti surge operation, it having 4 nos. volume booster, one sov, one positioner, etc..?

0 Answers   QAFCO,

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how many types of viberation transmitter and how to calibrate and where use of vibration transmitter

0 Answers   Sabic,

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What is difference b/w absolute & gauge pressure? EXPLAIN

2 Answers   IFFCO,

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What is the working principle of sox, nox analyzer?(opacity monitor) Otherwise how to measure the sox,nox?

1 Answers   Thermax,

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what is disadvantage of field bus (ff)type of instrument

1 Answers  

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why the positioner output is 3-15psi

5 Answers  

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Sir i am studying M.sc,(Tech.)Electronics and Instrumentation in Andhra university.What is the offers for me?

4 Answers  

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If a normal magnetic type flow transmitter that can measure flow, temperature and show this parameters on field, is it possible by any means to get this (flow and temperature) parameters info. On dcs? And if yes then with HART, FO communication or any other communication system?

1 Answers   Process Control Technologies,

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How to gennerate earth leakage monitoring alarm for solenoid valves in control system?

2 Answers  

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Tell about your IFFCO plant visit.

0 Answers   L&T,

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What is the difference between Pressure Safety Valve and Pressure Relieve Valve, in what condition we prefer choose Pressure Safety Valve rather than Pressure Relieve Valve? and vice versa

2 Answers   Vedanta,

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