1,why we use 4-20 ma output of all instrument qhy not use 0- 20, 2,what is the different between PLC & DCS. 3,how can we meaure maximum span of new flowmeter if not given any information.

4 Answers   Reliance,

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how to trim the pressure transmitter ?

2 Answers  

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why use on -off control valve in glove valve

1 Answers  

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how to design orifice plate?what is the equation?

0 Answers   REL,

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Difference between ultrasonic flow meter and radar type flow meter

2 Answers   Dodsal, Qatar Petroleums,

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what is mean by TDC-3000

5 Answers   ADCO,

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Is it possible to drill additional gland hole in EExd or EExe JBs? What are the points to take care?

2 Answers  

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Why thermo wells are used?

1 Answers  

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in natural gas indirect water bath heater,how to prevent the problem of backfire from firetube during ignition...becoz of this backfire performance of wbh is going low.

0 Answers  

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what is Instrumentation?

5 Answers   RCL, TCS,

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how to work static pressure sensore how to work dpt

0 Answers  

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How would i calibrate a new commissioned flow transmitter???

3 Answers  

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