how can we tune a PID. If it is by zeiger nichols method..please explain briefly with help of an example.

0 Answers   KNPC,

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Difference between ultra sonic flow meter

0 Answers  

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any body pl suggest me the best type of transmitter for level monitoring of a distillation still which consists of highly corrosive and inflammable liquid.closed vessel height=5000mm especially in petrochemical industries

1 Answers  

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What is the Flow rate ?

2 Answers  

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What is the difference in clamp on type and inline type ultrasonic flow transmitter.

1 Answers  

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Functions of electropneumatic valve positioner:

4 Answers  

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why we are using perforted cable tray for control cable and ladder tray for power cable

1 Answers  

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how to work MIL contol valve posistioner ?

0 Answers   ABB,

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Derive capacitance to 4-20ma conversion formula / relation in capacitance type pressure sensor?

0 Answers   ISRO,

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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 is linearity of RTD over 0 to 200 degC?

1 Answers   Honeywell,

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Why DP transmitters are subjected to high static pressure test of 100 bar. Though they will be used for very small pressure range

4 Answers   HPCL,

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