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 ? | 3 Yes | 0 No |
What is feedback system.
How to convert gpm into inches of eater.I nerd formula with example so pls help me.
what is the meaning of wet leg & where is it used?
why we use the 4-20 mamp signal used for transmitter.
What is shriking and swell effect for a boiler ?
1.what is the role of proportional comtroller in pid controller?2.How do u calibrate the control valve?
Manipulation of dead wt. tester double piston type.
Which standard of hazardous area classification used in India?
what is zero and span ?
Sir i am preparing for PSU exam for ONGC but i am not able to get the appropriate syllabus and previous year question papers. Kindly send me the same, that will be a great help from ur side. OR if anyone can plz send me the papers and syllabus please.
11 Answers Bhel, GAIL, IOCL, ISRO, NTPC, ONGC,
if the neutral and ground of ups voltege are connected together in the source itslef then why the voltege b/w neutral and ground comes positive in some other destination inspite of having earth pit. how can we mimmise this?
In Safe Guarding test what means by "Failed to Danger" ?