Answer / ashwani goel

the pmmc instrument is the cheapest one because EDMis the
most expensive and rectifier and thermocouple types already
contain PMMC intruments. hence pmmc is cheapest

Answer / brijesh kr. bind

pmmc is the cheapest instrument.bcoz edm is costly and pmmc
is also the part of rectifier and thermocouple.

Answer / jignesh

rectifier is cheapest bcoz diode work as arectifier and is
cost is only 1 rs.

components of control circuit belongs to control valve

0 Answers   KOC,

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1.what is the power consumption of three element drum level control in sugar industries? 2.how to reduce that?

0 Answers  

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Explain ratio control system.

1 Answers  

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What is SCR?

9 Answers  

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why we use -ve voltages in vibration prob?

1 Answers  

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

0 Answers   HPCL,

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What is the difference between bench set and operating range i control valve?

1 Answers   Descon,

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give some question relative instrument fitter?

0 Answers   Armco,

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what is the path to communicate from profi to ofc.what is the means of communication.what is multi cire cable in ofc.

1 Answers  

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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..???

0 Answers   Siemens,

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A DP transmitter is used to measure the level of an open tank. The drain line of the tank is connected to a control valve, and is configured as, if the level of the tank is 90% the valve should get open 10%. And if the tank level is 10%, the valve should get open 90%. Draw wiring diagram and explain how to configure DP transmitter and control valve using HART communicator. If the span error at output is 1%, what will be the %opening of the control valve at 60% level of the tank?

0 Answers  

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what is thermocouple output

7 Answers   IPCL,

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