how to calibrate a control valve?
- 7 Answers
- 61098 Views
- Reliance, Telecon Systems, I also Faced
- E-Mail Answers
Answer Posted / shefeek salim
In Control valve Calibration,its of two types;
1.Stroke Calibration
2.I/P Converter Calibration
1.Stroke Calibration
it means for the movement (opening and Closing) measurement of stroke through the Scale,from 0 to 100 percentage of valve Closing/Opening,according to the standard air pressure supply or milli amps supply(3 to 15 psi,4 to 20 mA)
2.I/P Converter Calibrtion
It is comparatively simple one,but it can be done in two ways,
2.1 Simulate the std 4 to 20 mA as input Check the output from the I/P
2.2 Simulate the std 4 to 20 mA to the I/P converter as input and measure the Control valve stroke movement through the scale(0 to 100%)
| Is This Answer Correct ? | 25 Yes | 0 No |
Post New Answer View All Answers
what is function of switch, and how is it work, explain with difination
what would be the minimum flow rate that we can measure on rotameter..?
Explain the working of an electronic level troll.
What is rang ability?
What is instrumentation measurement?
can we create an interrupt in plc through scada?
What is force balance principle? State some of its’ advantages.
How to calculate P,I&D value in PID controller ?
When doing a liquid seal on a differential flow transmitter , most of the time the sealing liquid will be heavier then the process fluid. For wich application will the sealing liquid be lighter than the process fluid if transmitter is mounted below the process line.
Explain the mechanism behind the turbine meter.
when placing a vent or drain hole on an orifice plate should you measure from the center of the bore up or down for the vent placement?
describe flow nozzel principle?
Good evening all I need a small favour regarding reliance paper i wanna probable sample papers(e&i) of reliance. if any of u have any idea about dis then plz mail me back.i belongs to electronics and instrumentation engg.so i need e&i papers. thanking u....
What is the difference between modbus,fieldbus & profibus
What is the use of temperature compensation?
