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

What is the exact differences between HART,FOUNDATION FIELDBUS,PROFIBUS?

0 Answers   Jubilant,


when we are using HART COMMUNICATOR why we are using 250 ohm resistance while using HART COMMUNICATOR.

7 Answers  


basic connection and principle of axial shift sensor n differential sensors in tubine describes n draw......

0 Answers  


what happens when the profibus fails while in operation (operation of a valve)?

5 Answers   L&T,


without color coding, without nameplate, without multimeter how can you find the type of thermocouple???

1 Answers   Sabic,






what is plc?

27 Answers   HPCL, KRL, Noor Company, Petrochemicals, SS Automation,


where i can get training in INTOOLS and PDMS in Delhi-NCR OR north part of India. please reply with ur ans. at arunsamkaria@ymail.com

0 Answers  


What is the purpose of the analyzer in petrochemical plant?

0 Answers   ENI, Lakshmi Machine Works,


please tell me what is a light up procedure of Cfbc boiler and what it's axuillaries of cfbc boiler?

0 Answers   Wartsila,


Draw symbols of the following :

0 Answers   CCIE,


How to measure Flow of air line,what is the procedure of creating DP in line to measure Flow!

3 Answers  


please tel me the calibration of pneumatic controler.

0 Answers  






Categories
  • Civil Engineering Interview Questions Civil Engineering (4653)
  • Mechanical Engineering Interview Questions Mechanical Engineering (3710)
  • Electrical Engineering Interview Questions Electrical Engineering (15820)
  • Electronics Communications Interview Questions Electronics Communications (2685)
  • Chemical Engineering Interview Questions Chemical Engineering (763)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (127)
  • Bio Engineering Interview Questions Bio Engineering (30)
  • Metallurgy Interview Questions Metallurgy (95)
  • Industrial Engineering Interview Questions Industrial Engineering (199)
  • Instrumentation Interview Questions Instrumentation (2885)
  • Automobile Engineering Interview Questions Automobile Engineering (171)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (74)
  • Marine Engineering Interview Questions Marine Engineering (103)
  • Power Plant Engineering Interview Questions Power Plant Engineering (170)
  • Engineering AllOther Interview Questions Engineering AllOther (1371)