why the positioner output is 3-15psi

Answers were Sorted based on User's Feedback



why the positioner output is 3-15psi..

Answer / amit srivastava

According to flapper nozzle system, the flapper nozzle gap
and output of back pressure is nonlinear.But if we observe
the nozzle back pressure and flapper nozzle gap curve, at
3-15 psig output the curve is linear.

Is This Answer Correct ?    12 Yes 1 No

why the positioner output is 3-15psi..

Answer / nirmalyabasu

this signal is globaly accepted as a transmitable pneumatic
signal so for every pneumatic works this signal is accepted
or used.

Is This Answer Correct ?    3 Yes 1 No

why the positioner output is 3-15psi..

Answer / poorni

we cant find the error wnen it is in null conditions.so the
pressue range starts from 3 psi and most of the instruments
does not exist more than 15 psi.

Is This Answer Correct ?    1 Yes 0 No

why the positioner output is 3-15psi..

Answer / ch amir islam

Normally we use the CVs that have thier bench set more than
3 to 15 PSI but some time at low pressure line we use CVs
that have bench set of 3 to 15 PSI so we use the i/p of a
possitioner as o/p for traveling of CV but in normal cases
we dnt have i/p of possitioner below than 15 PSI.

Is This Answer Correct ?    0 Yes 4 No

why the positioner output is 3-15psi..

Answer / ch amir islam

Normally we use the CVs that have thier bench set more than
3 to 15 PSI but some time at low pressure line we use CVs
that have bench set of 3 to 15 PSI so we use the i/p of a
possitioner as o/p for traveling of CV but in normal cases
we dnt have i/p of possitioner below than 15 PSI.

Is This Answer Correct ?    1 Yes 6 No

Post New Answer

More Instrumentation Interview Questions

Which of the following instruments consumes maximum power during measurement?

3 Answers  


in DCS or PLC we can not put all ai or di,there is calculation through which we can accomodate certain no of digital and analog signal.I need to know that calculation

1 Answers  


regarding level tx i would like to know how to select the range of the level transmitter in a closed drum(steam drum or deaerator)?

1 Answers  


What is the difference between fiber optic cable & Ethernet cable

2 Answers   BEMCO, CCC, Pidilite,


how eddy current loss in probe and induced gap voltage accros probe trip and shaft

1 Answers   Reliance,






HOW DPT WORKS?

6 Answers   Essar,


I am using Capacitive type level transmitter for measuring oil level in a closed tank (lub oil tank). The txs range is 1500mm, and they do hunt regularly (for about 45mm), can anybody tell what could be the reason??? or any other type level tx that could be used to avoid this?

1 Answers  


How do understand by hart protocol?

4 Answers   BW Instrumentation Electrical,


waht is difference between pressure transmitter and transuducer

4 Answers   Gasco,


What is ptw and write 3 types of ptw?

5 Answers   Emco,


HOW DOES SPECIFIC GRAVITY AFFECT LEVEL MEASUREMENT.

3 Answers  


Name different parts of a pressure gauge. Explain the use of hair spring in the pressure gauge.

0 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)