Answer / manomallik11

positioner sets the controlvalve stem % open or % close as per command and the position transmitter sends the feedback of % open or % close in control valve to the dcs

Answer / faiyaz ahmad

Positioner is device which is used to given the position of the control valve 25% 50% 75% 100% and Transmitter is send the feed back signal to the DCS.

what is isolation Transformer???...

3 Answers   Emerson,

---

what is piezo electric transducer?its principle?

2 Answers  

---

what is ment by PID controllers? explain with example?

2 Answers  

---

hi all plz tell me difrence between analog or digital load cell.

2 Answers  

---

Can anyone provide me the details of GAIL test paper?What is the format and what type of questions will be there? my id-princegnb@gmail.com

1 Answers   GAIL,

---

how to make temperature closed loop

1 Answers  

---

In control valve , Failure position : Close If it is Fail close(FC) during failure of AIR.. what will be the initial/ normal position of control valve is it normally open or close? please some one explain soon..

2 Answers  

---

what is the reset offset and control system in instrumentation

1 Answers   ABB,

---

How many types of Control Modes in process control, plz tell me all.....?

2 Answers  

---

Why 250 or 500 ohm load resistance is use in any transmitter

2 Answers  

---

why two probes are used in turbine flowmeters?

2 Answers  

---

how can leve transmetter calibate in feild .and also put cv and flow plz .....

1 Answers   IBM,

---