how to work gas chromatography explain principle ?

2 Answers  

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How you calibrate absolute pressure with the calibration range of 0 to 1000 0C Absolute. Please explain the procedure for calibration.

0 Answers   Petro Rabigh,

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I am working in a process industry, in that there are several sections devided in the SCADA screens and individual sections may START independently. But sometimes i am facing problem i.e, if section 2 Stopped by the operator immediately Section 1 or Section 3 or Section 4 is getting stopped can you expain the reason behind this?

5 Answers  

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control modes

1 Answers   Vedanta,

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how to calibrate control valves & power cylinders & ultra sonic level transmitters

0 Answers   ABB,

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How is automatic reference junction compensation carried out in temperature recorders?

0 Answers  

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when placing a vent or drain hole on an orifice plate should you measure from the center of the bore up or down for the vent placement?

0 Answers  

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rtd principle?thermocouple principle?

5 Answers  

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Why shield is not connected at both end.

5 Answers  

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Name different types of bourdon tubes.

0 Answers  

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What is three element in drum level?

0 Answers  

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Hi buddies! my name is sachin and i am working as a electrical and instrumentation engineer in a paper plant. right now i am facing a problem and if someone could help me it will be an immense pleasure to me. i am using AC 800M to synchronise DCS500 drives on paper machine and rewinder.communication is on PROFIBUS and we are using NPBA-01 module to link profibus to DC drives.But these days two of these drives are showing a error named FIELDBUS COMM.TIMED OUT and the drives get tripped.I have changed the NPBA module and PROFIBUS cable.So if anyone can do please help me out with this problem.I'll be highly grateful.

0 Answers  

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