Answer / ram asati

RTD OUTPUT ALWAYS RESISTANCE
FOR PT-100 RTD 0 Centegret -100ohm

Answer / rajach

resistance

Answer / astik gedekar

Resistance (ohms)

Answer / afsar mumtaz

ohms

what are the different types of communication cables used in automation and what are the difference in the cables

1 Answers   KN,

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whats the diff b/w zero pressure and obsolute pressure

4 Answers  

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Square root calculation for dp flow transmitter?

0 Answers  

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We do have a problem in the company that is one PT connected to PlC which is mean 1 out of 1 in PLC system we do have the PAHH is 55 mbar and PALL 8 mbar with a timer of 15 sec for the PAHH the problem started when PAHH goes more than the set point which is 55 it reached up to 71 but due to timer doesn't trip . We force it and we checked everything nothing there . We replaced the transmitter problem still there the reading goes more than the 55 bar the range for transmitte is 0- 60 mbar . So we did loop check , aculaizing valve , wiring all are okay . What the possible causes for this ???

2 Answers   National Petrochemical Company,

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why the SCAN time of DCS is more & that of PLC is less? if the SCAN time of DCS then why we use DCS.

4 Answers  

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Sir i am preparing for PSU exam for ONGC but i am not able to get the appropriate syllabus and previous year question papers. Kindly send me the same, that will be a great help from ur side. OR if anyone can plz send me the papers and syllabus please.

11 Answers   Bhel, GAIL, IOCL, ISRO, NTPC, ONGC,

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in yokogawa prosef rd safety PLC how to data send frome local SCS to other SCS and other FCS

2 Answers  

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What is the basic difference between Modbus and CAN Open Protocols

0 Answers  

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Full form of KKS when use DCS.

0 Answers  

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-/5A. What is the meaning and limitations of this in energy meter constant. It is a 3 phase LT Energy Meter. If this Energy Meter is connected through a CT of ratio 200/5 Amps, then what is the multiplying constant and how its will be calculated.

0 Answers  

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what is difference between differial pressure & delta pressure?

3 Answers  

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What kind of feedback is used in DP cells.

1 Answers   CCIE,

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