Answer / abhi

Mechanical Runout :– An error in measuring the position of the shaft centerline with a displacement probe that is caused by out-of-roundness and surface imperfections.
Electrical Runout :– An error signal that occurs in eddy current displacement measurements when shaft surface conductivity varies.

How do bending tubing provide better measurement than using tubing fittings such as elbows?

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FOR CO/CO2/O2/NOX applications which of the following manufature is best? and what is the basic principle of gas analysers? ABB/YOKOGAWA/EMERSON/SIEMENS/TELEDYNE/THERMOFISHER

4 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 Proximitor supply should be Negative voltage? Why should not we give Positive voltage to the Transducer?

6 Answers   Moser Baer,

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Can anybody tell me how to select the size of earthing cable for DCS & PLC system.Please tell me any relevant answer here or mail it to me.

0 Answers   Essar, Sail,

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how to calibrate a control valve?

7 Answers   Reliance, Telecon Systems,

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I installed the smartplant instrument v8, but can not be opened, that always said: "INTools 2007 hardlock no found". So Could you help me how to do for that?

0 Answers   SRAAC,

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How to calibrate the magnetic flow meter and how to correct the flow if it is showing more flow.

5 Answers   Bohra Industries Limited, TCL,

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what is thermopile?

1 Answers   HNG,

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What is PDS and PDMS ?

0 Answers  

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Thermocouples work as follow:

1 Answers   Dashen Brewery, Tata Power,

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where proximity sensor installed on tank in loading arm application

0 Answers  

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