how to calculate range of level transmitter?

0 Answers   TCE,

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what is the formula for changing Range of Transmitter from X mmwc to some Y mmwc with respect to DCS NCMH flow range from x NCMH to y NCMH?

1 Answers   HCL,

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How to check loadcell working or notworking

2 Answers  

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why we use cascade control and feed foreword control in 3 element control of boiler drum ?what is feed forward and cascade control system ?

0 Answers   Visa Steel,

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Explain operation of Haskel pump.

0 Answers   CCIE,

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WHICH INSTRUMENT USED TO CALIBRATE CONTROL VALVE?

23 Answers   Exxon Mobil, Honeywell,

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How much voltage we are using at switches?

4 Answers   Edac,

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In split range control, we will control 2 outputs with time interval. Eg :(with 4-20 ma signal, for 4-12 ma we are operating one control instrument like valve & for 12-20ma we are operating other control instrumet (other valve). If we get a signal of 15ma to first instrument (Valve 1), what will happened to the first valve, and if we get signal above 20 ma to 2 valve what will happened ?

3 Answers  

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What is an SCR?

4 Answers   GAIL,

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Who to difference between analog in & analog out in dcs?

0 Answers  

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what should be the distance of vibration sensor & to the point where vibration to be measured Ex turbine axial displacement

3 Answers  

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What is linearity of RTD over 0 to 200 degC?

1 Answers   Honeywell,

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