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 we can measure the interface level?is it possible to measure interface level with dp or pressure transmitter?

2 Answers  

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what is the si unit of pressure?

6 Answers   HTA Instrumentation,

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why we are using negative range like -750 to 0 mmwc in closed tank?and what is the reason can you explain clear?

2 Answers   Aarvi Encon,

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send me model hpcl questions pleas..........my mail id mohideen.dharvesh@gmail.com

0 Answers   HPCL,

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If a control valve is hunting means means if we are giving 50% to the cv, the cv will open at 51% then slowly slwoly it will reaches 49% , then it will reaches again 50%, this type of action occured frequntly.. so what to do for solve this problem. The possible cause is in volume booster or positioner's relay.. positioner is double acting .. and make siemens..sipart.The cv is double acting and mounted for anti surge operation, it having 4 nos. volume booster, one sov, one positioner, etc..?

2 Answers   Gujarat Fluorochemicals Limited (GFL), Shell,

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WHAT REASEAN USE TRANSMETER TWO WIRE & FOUR WIRE

5 Answers   Kentz,

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WHAT ARE MAIN DIFFERENCE BETWEEN DCS AND SCADA?

7 Answers   ABB, Gold Fields, Rand Water,

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Can I calibrate the Electromagnetic Flow Meter on line and How.

0 Answers   SEWA,

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what is intools software

2 Answers  

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How to connect field devices to PLC and DCS using a FIELD BUS, DP,MOD BUS(please tell me any extra interfce or adopters need in this case if we use remote i/o s)

3 Answers  

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why orfice is not used for main steam flow calculation

0 Answers   OEG,

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I need control valve ISA hand book. Is there any site to download that big book containing all the pages. Written by Paul Friedmann

0 Answers  

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