Answer Posted / dibyalochan sahoo

In automatic control system sensor is used to reduce the error.in manual control system user is responsible to reduce by observeving output.it is a close loop control system .in place of sensor here human is present.an open loop control system with human involvement called manual control system.

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% , so what to do for solve this problem. The cv is double acting and mounted for anti surge operation, it having 4 nos. volume booster, one sov, one positioner, etc..?

2146

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we are having yokogawa centum cs3000 dcs in our power plant. i need some of the operator guides NOT to appear in HIS0163 AND HIS 0162 but it shoul appear in HIS0164 HOW TO DO IT?

2641

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What is Alpha & Beta fctors related to Orifice Plate & its relation with flow?

3428

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what is The specifications for oriface instalation

2199

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how to rectify the poor signal strength in utrasonic digtial flow meter ,model:ge digital xce868i

1330

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What is Droop? What is Step/Gradient Limiter in Turbine Governor control?

3456

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key exchanges in wpa,wpa2,tls

1983

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What is the purpose of the analyzer in petrochemical plant?

3926

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What are de-saturators?

1293

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How RAL(Rotary air lock)works in cement industry?

2549

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flow transmeter accuracy 0.075% of full scale & find ucertainty is 0.025 % so what is maximum limit band of uncertainty

2363

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what is the working principal of pribe

2344

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while i check zero check for dp flow transmitter some fluctuating came (0 to 458 kg/h) what is the reason?

1969

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how can be calibrate flow indication transmitter (rosemount) it shows excess milli amps nearly about 24 ma on full scale, but its scale was set on 20ma on full scale..???how can be simiulate..???

2463

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Why grounding is necessary? Give example with diagram.

2270

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