why two probes are used in turbine flowmeters?

2 Answers  

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what is the responsibility of an instrument commissioning supervisor

0 Answers   Petrofac,

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Calculate the maximum pressure drop that can be allowed to occur across a control valve, so that we can prevent cavitation / flashing from occurring. Use the following formula: Δ P allow = Km (P1 – PvapourA) where, Δ P allow - the maximum allowable differential pressure for sizing purposes, or terminal pressure drop; Km- the valve recovery coefficient from the manufacturer’s catalogue; P1 - absolute inlet fluid pressure; PvapourA - absolute fluid vapour pressure at the inlet temperature; Use Atmospheric pressure = 101.3 kPa, P1 = 1200 kPa(g), PvapourA = 4 kPa, KM = 0.72

0 Answers  

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how the 4 to 20 mA signal goes to any controller/indicator,and what is the role of voltage ,12/24 and how to do connection of it, in controller.

1 Answers  

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what is diffrence between cascade & three element system.

3 Answers  

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how to calibrate TT transmitter

3 Answers  

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What is voltage free(wet) and potential (dry) contact?

2 Answers  

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hi i am eswar i want to know the instrumentation interview questations for eil(engineers india ltd) i have applied for engineer post in eil please help in this.my mail id eswar310@gmail.com

0 Answers  

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What is impulse line size

3 Answers   IFFCO,

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how do u calibrate the vacuum transmitter if it shows more reading

0 Answers  

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What is the cascade control

0 Answers  

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Actual using of tube bender to bend 2 opposite 90 deg at correct measurement center to center of tubing.

0 Answers   CCIE,

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