How to calibrate a orifice differential pressure flow
transmitter in process?






How to calibrate a orifice differential pressure flow transmitter in process?..

Answer / ayaz

first communicate ccr tag conform and turn MOS if required 
when 5 way manifold
1 hp side close 
2 equalizer  open
3  lp side close
and then hp and lp drain or vent should be open
the transmitter will show zero if not calibrate it
first adjust the zero 
2nd second span check and adjust 
and then service 
1 drain or vent close
2 equalizer close
3 and then hp side open and lp side open

Is This Answer Correct ?    2 Yes 0 No

Post New Answer




More Instrumentation Interview Questions

I am applied 100 % pressure on to the air to open control valve,but the valve is not fully closed..and 10-15% is open the valve. how to calibrate the control valve?

2 Answers   OPaL,


how to convert transmitter milliamps output to like temp,pressure etc.....

5 Answers  


what diffrence b/w plc s7200,300,400

0 Answers   IFFCO, Reliance,


While giving Power Supply of 24 VDC to a Transmitter,why Shield Terminal is connected either at Transmitter or at ISB.Why not Shield Terminal connected at both ends.If the Reason is to avoid Noise interference,which type of noice that is interfering.Is the Noice from the 24 VDC supply terminals or from any external source.

1 Answers  


can anybody tel me how a vfd or any field instrument communicates/interface with plc/scada/cs.

0 Answers   Honeywell,






How to Calibrate variable Head flowmeter (Orifice), here we dont know High pressure and low pressure then how to apply pressure on HP and LP side ?

1 Answers   Nirma,


what is purpose of three way manifold valve using for dp transmitter

1 Answers  


what is intools software

2 Answers  


what happens if we are having very very high cavity and flashing in a control valve..??? is it stops working...immediately... or eroded...slowly

2 Answers  


HOW THE ORIFICE & PRV SIZING BE HAPPENED -- EXPLAIN IN BRIEF

3 Answers  


Why Flow measurement has to use Square Root

5 Answers   Hindalco, Petronas,


why bevelling is done in an orifice ?

4 Answers   ABB,






Categories
  • Civil Engineering Interview Questions Civil Engineering (5065)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4645)
  • Electrical Engineering Interview Questions Electrical Engineering (16567)
  • Electronics Communications Interview Questions Electronics Communications (3716)
  • Chemical Engineering Interview Questions Chemical Engineering (959)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (214)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (272)
  • Instrumentation Interview Questions Instrumentation (3005)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (105)
  • Marine Engineering Interview Questions Marine Engineering (151)
  • Power Plant Engineering Interview Questions Power Plant Engineering (170)
  • Textile Engineering Interview Questions Textile Engineering (473)
  • Production Engineering Interview Questions Production Engineering (0)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1376)