I am a instrument technician. recently i attend interview and face one of questi

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

Question Posted / rohiths990

3 Answers
4556 Views
Qatar Petroleums, Samsung, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

I am a instrument technician. recently i attend interview and face one of question for DP transmitte..

Answer / ashrafsmiles

The pressure in the open tank is Atmospheric pressure only. so no need to compensate the pressure at LP side. Just leave it (LP Side)to atmosphere.

Is This Answer Correct ?

22 Yes

2 No

I am a instrument technician. recently i attend interview and face one of question for DP transmitte..

Answer / ahmed

Calibration coefficient we titration differential pressure device through the injection amount of pressure in the high side and at the same time the low side open to atmospheric pressure, because pressure air fixed and unchanging and the device works on the difference between Aldgate if the equation realized there atmospheric pressure fixed and your controlled pressure from here the differential pressure is measured

Is This Answer Correct ?

1 Yes

0 No

I am a instrument technician. recently i attend interview and face one of question for DP transmitte..

Answer / ilaravii

in calibration lab we have atmospheric pressure as Low Pressure for DP transmitter, since we keep the LP open .

Is This Answer Correct ?

0 Yes

2 No

Post New Answer

More Instrumentation Interview Questions

The wire is disconnected from the temperature sending unit (magnetic gauge). A voltmeter connected to the wire reads 0v. What does this indicate?

2 Answers

what is RPI and NUT in controlnet networx. what happen if we are increase the NUT of controlnet networx?

1 Answers Schneider,

what would be the minimum flow rate that we can measure on rotameter..?

0 Answers TATA,

I faced several time siemens ps2 positioner automatically getting Chang in it's set point direction after auto calibration So is there any causes biside this or any permissives ?

0 Answers

what is the reset offset and control system in instrumentation

0 Answers ABB,

what is the way of measuring air flow in air duct?explaim instruments used and DP creation in line?

3 Answers

hi vishok this is noor plz tell me what type problems will occured i use T/C in the place of RTD in (FEED WATER TANK),plz send ur e-mail address to my ID (mail2noor.hyd@gmail.com)

6 Answers

What is the relationship between the universal gravitational constant (G) and the acceleration due to gravity (g)?

3 Answers APPSC,

What is instrumentation instrumentation engineering?

0 Answers

Using your own examples solve a problem involving normal table. (experimental method and analysis)

0 Answers

how can we measure the pressure in underground cooling water pipeline by using pressure transmitter?what about the tapping position?

2 Answers

my temperature transmitter in field showing 700 degree , whereas in dcs showing 459 degree, how to resolve this?

4 Answers ONGC,

For more Instrumentation Interview Questions Click Here