what is zero and span ?

0 Answers  

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In power plant to measure vibration of a turbine we install sensors. Before install this sensor we have to set gap voltage. What is meant by gap voltage and its use?

0 Answers  

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plc trouble shootings?

3 Answers  

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what is an ambient temperature?

5 Answers   Reliance,

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what is XV and KV valves?

4 Answers  

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What s the exact height of installed transmitter?

1 Answers  

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What is the purpose of bypass valve across AS valve.

0 Answers   ADMA OPCO,

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1.Give example of analog and digital signal 2. What is yhe advantage of 8086 than 8085

5 Answers   Bhel, College School Exams Tests, Profitec,

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What are use of positioner.

6 Answers  

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What is actuator what is motorized control valve?

5 Answers   Emco,

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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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which transister (npn or pnp) is used in vibration monitoring for negative voltage? 

2 Answers  

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