Answer / ashwani kumar

I had never came across this situation.
Orifice creates a pressure drop across the plate and hence measuring the pressure on the upstream doesn't provide any significance. Pressure after the orifice always carries significance.

Answer / sony cherian

Orifice plate is no need for PT, Orifice is only used for DPT

Answer / uttiya hazra

Pressure transmitter is not installed before up-stream of an orifice plate because in the region of up-stream there exists a pressure differential or pressure gradient.

Answer / jaffer

When the flow is restricion on a orficie plate that time HP side flow of pressure decrease&velocity is increase .

in the flow caluclation k value how to caluclate.mass flow & volum flow.

1 Answers  

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types of valves

3 Answers   Bindal Papers, Kuwait Oil Company,

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A temperature sensor (RTD) connected via a temperature transmitter is adjusted to give an output of 4ma at 60 deg and 20 ma at 600 deg. This output (4-20ma) from the transmitter is connected to an IGBT-inverter to control a high speed (-12,000 to +12,000 RPM) DC motor. And in the inverter it is programmed as, for 4ma the motor speed will be -3,000 RPM and for 20ma the motor speed will be +10,000 RPM. The question is : If the motor speed is +5,500 (RPM), what will be the temperature? (-sign indicates that the motion is in reverse direction).

9 Answers  

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defffrence between instruments and instrumentation

8 Answers  

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what is the difference between 2 wire and 3 wire RTD- application wise,cost effectivity?

2 Answers  

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HOW DPT WORKS?

6 Answers   Essar,

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What does a hookup diagram look like? can you give sample drawing. thanks.

1 Answers  

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How you calibrate absolute pressure with the calibration range of 0 to 1000 0C Absolute. Please explain the procedure for calibration.

0 Answers   Petro Rabigh,

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A motor is taking 15 Amps at no load and 60 Amps at full load. and a valve has to open 10% at full load and 80% at no load. How to draw ladder logic.(PLC).

2 Answers  

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hello this is dhinakar i am completed my instrumentation engg . recently i got job in sugar industry side. i like to ask one question can any one say what are the things i have to follow know more about industrial instrumentation,,,,,,,

6 Answers  

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what is puling in n pulling out in flame scanner system?

1 Answers  

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why we are not using the turbine flow meter in the steam service?

0 Answers   Jaypee,

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