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%)

How to calibrate H2s Dectector

1674

---

Explain the working of an electronic level troll.

1141

---

why is not useing in boiler skin thermocople

5358

---

There are many type of control cable like pair,core,tried, What are defination each one

2204

---

please send the sample qustion paper for iocl written test ..

3756

---

how to tune siemens sipart electro pneumatic positioner..plz tel me..

2197

---

Describe how to use megger to measure the earth resistance and insulation resistance

2276

---

Any body have know try work calculation ???

1476

---

WHAT ARE THE INSTRUMENTAL DIAGRAMSOF VALVES?

2188

---

what is a half wave, full wave, and bridge rectifer.

1836

---

How to Calibrate Coriolis Flow transmitter in field

1313

---

what is performance test.need defination

1762

---

how to calibrate electro pneumatic positioner 8013 mil controls ltd ?gsr

7959

---

whatis range of marcury filled tempereture gague

1999

---

What is Alpha & Beta fctors related to Orifice Plate & its relation with flow?

3427

---