Explain , how timer based pneumatic control valve will work ?

1 Answers  

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What is the function of positioner in control valves? does the control valve operate without positioner?

3 Answers   Hofincons,

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how to connect 3 wire 4-20 mA transmitter in Plc system PLC system and how explain how the measuring data communicate with plc system.

1 Answers  

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Sir, my yokugava FF TYPE LEVEL transmitter us bad, i don't have spares available, i want to replace it with a Rosemount FF transmitter, please tell me what procedure to be followed and what changes to be done in dcs part.

1 Answers   BPCL Bharat Petroleum, OEG,

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what is earthing ,grounding in c&i panel?what is the resistance in earthing and grounding of c&i panel?what do u mean by shielding and what is its resistance?

1 Answers  

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What is an antisurge control system, how it works?

3 Answers  

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What is SLPC & MLPC? How it works?

2 Answers  

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Name and describe at least 4 status indicators, typically found on a PLC

2 Answers  

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What are the maximum packet size of: a) HART b) Profibus DP c)Profibus PA d) DeviceNet e) Foundation Fieldbus

0 Answers   EIT,

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i saw in my company drawing seat cable size as mensioned like this 12p*15 sqmm,12t*1.5sqmm, 9c*1.5sqmm. now what my que is what is mean by p , t , c.

3 Answers  

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why we are not using the turbine flow meter in the steam service?

0 Answers   Jaypee,

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WHY WE NOT USE 2-20mA,1-20mA,3-20mA or 10-50mA SIGNAL? INSTEAD OF 4-20mA.

6 Answers   Hindustan Unilever Limited, Yashmun Engineers,

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