Answer / hassan abbas

A programmable logic controller (PLC) or programmable controller is an industrial digital computer which has been ruggedized and adapted for the control of manufacturing processes, such as assembly lines, or robotic devices, or any activity that requires high reliability control and ease of programming and process fault diagnosis.

3element

2 Answers  

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Can we used Condensate Pot on flow transmitter which is using on liquid having sluge and DP transmitter is in pit and below the process line,Can we used Condensate pot for accamulate the Sluge?

1 Answers  

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what is the difference betwwen the 2wire level transmitter and 4wire level transmitter??and their applications also??

2 Answers  

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what is the input of digital counter during the the calibration time?

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What is input and output of vaiberation transmitter and what is its unit.

4 Answers   SMH,

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Qatar fertilizer call me for interview as Instrumentation Project Engineer. Please let me know what kind of question they asked ? ALso they said they will take Written test, any idea about this written test ?

1 Answers   QAFCO,

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Explain Split Range Control In Control Valve Briefly.

5 Answers  

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how 3 out of 2 Logic/interlocks works? give brief explanation with help of diagram.

0 Answers   Adani Power,

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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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on which principle control valve works?

3 Answers   Lupin, Reliance,

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which is the best type to measure level of a Tank(water). Displacer or Differential Pressure method?

2 Answers  

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working principle of lvdt?

2 Answers  

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