Give Detail information about plc,dcs,and scada system?

0 Answers  

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For a diafhram 1.5 d =kn(p-p0) D4 Where d in deflection in inch k=constant n=no of capdule (P-P0)=Applied pressure in psi D In active dia at capsule. -1.5 d=k to p d being constant -1.5

0 Answers   L&T, Shiv Tech Marine Control,

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what is function of switch, and how is it work, explain with difination

0 Answers   Bapco Bahrain Petroleum Company,

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Name different types of bourdon tubes.

0 Answers  

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What unit is used for measuring comp. outlet flow. it is CFM, M3/hr or NM3/hr. ?

5 Answers   Jk Tyres,

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need to calculate flow rate with the help of dp range and orifice bore dia and size. range is 0 to 400 inwc and orifice size is 12 inch 150 # rf and bore dia is 7.180 inch. need to calculation for flow rate

0 Answers  

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what are the steps I have to deal with?

0 Answers   ONGC,

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In control valve there are two type of valve seat we can use metal to metal seat & soft seat.On this valve seat i have following doubt. 1)I have never seen practically the internal assembly of valve so my doubt is that basically weather the seat is soft seat or metal its basic MOC is same as valve body(SS or CS) only in soft seat we are using PTFE ring & place on valve seat & in metal this PTFE ring is not threr am i correct??????? 2)what are the common general rule for using metal to metal seat & soft seat,means its depend on process parameter like liquid,gas, steam & on valve leakage class.

1 Answers  

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What is cascade control in process instrumentation?

4 Answers   Engineers India, ITC Infotech,

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What is difference between profibus and modbus communication

2 Answers   GMR,

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WE ARE HAVING YOKOGAWA CENTUM CS 3000 DCS, 2 FCS AND 4 HIS " When the operation Download to HIS message appears: Equalize start. HIS0163 WARNING: Could not connect to equalize destination. (7001) Retrying. Number of retries = 0/1 ERROR: LdXopsLoadMain: connect error 10060 ERROR: LdXopsLoadMain: connect error 10060 ERROR: Processing terminated due to connection error. (7002) Equalization end with errors. HIS0163 ---- ERROR = 3 WARNING = 1 ---- Tell me, please, why and how to solve the problem."

6 Answers   Khas Pvt Ltd, Yokogawa,

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In which principle Woodward Governor 505 work in power plant? What are the input of Woodward governor 505

1 Answers  

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