Answer / muhammad ali

Datum line or point is a reference point for level
measurement.

Answer / ravi

Which point is we can take a refrance point for hight of
level .
Means our level is XXX mm from Datum line .
The bottum of measerd level tank is Datum line

Answer / elsayem

datum point is the rerence point when we measure level

Answer / imran

It is the refference point of any vessel from where zero
level start above bottom of vessel.For level measurement it
is zero level and head pressure is measured at this point.

how u choose thermowell lenght n pnumatic C/v size?

0 Answers  

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PLZ explain to me massflow

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Specify eight technical requirements that you would consider important, when deciding upon a particular control valve?

0 Answers  

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I am a instrument technician. recently i attend interview and face one of question for DP transmitter ,the client asking about the calibration of DP transmitter ,am answer the calibration procedure, they will ask one more question. why open LP side in atmosphere? i did not answer that question. so please help me and explain the particular question. Dear firends waiting for your valuable replay

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In turbine, what does term CDP, NI, NH, HSSOC, means

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why vortex flow meters and electro magnet flow meters are used in water treatment plants

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I have transmitter of range -20 to -5 kpa.if it is possible to zero trim with atmospheric pressure,means HP and lp having no pressure...what will get after zero trim and it is the right way.....plz give me reply ....

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what is piezo electric transducer?its principle?

2 Answers  

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control panel design guidelines

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when an eddy current probe is installed inside of a turbine or compressor in case of probe problem same as:crash of head of probe,changing the scale factor because of low measuring gap(physical gap is ok(example=1.14mm)but voltage is reduced(example=-6 volts),is any way to check the probe,when the ohm of probe is ok.thank you,(Karim Tavakoli)

1 Answers  

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how to design orifice plate?what is the equation?

0 Answers   REL,

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What is the logic a Transmitter control a Control Valve? How the signal going to the Control valve? What are systems/Panels/cables/signal used to control valve from Transmitter?

3 Answers  

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