what is difference between positioner and position transmitter in control valve

2 Answers  

---

how many type of control valve?

10 Answers  

---

how do i calibrate mmwc pressure guage with out calibrator.if any? pls give me the ans.

1 Answers  

---

In your own words, would you expect an ultrasonic level device to work better in a pressure vessel with a high pressure or a strong vacuum, and why?

1 Answers  

---

Hi, I'd like to know the purpose of MOS (maintenance override switch). At site, these switches are installed in a stanchion with the transmitter (connected to ESD). thank you.

3 Answers   Adani, Adani Wilmar,

---

---

what is positive displacement meter.

1 Answers   Takreer,

---

Dear friends, I have a question: We work on a project which has some boilers to provide steam for desalination unit. The boiler area is safe and the only hazard source is the fuel lines of boilers. I want to know according to NFPA standard which type of instrument should be selected on the fuel line: Eex Type or Non-Eex type? Thanks in advance

2 Answers  

---

why use squareroot in flow measurment by dp transmitter?

4 Answers  

---

Can 2 transmitters be connected to Integral orifice meter taps? Does an integral orifice comes with 2 set of taps?

1 Answers  

---

how to check diode wheather it is working or not by using multimeter?

3 Answers  

---

Which Signal hart communicator work? If there any signal change when hart connect while transmitter in line ?

0 Answers   KOC,

---

Exothermic reaction./ endothermic reaction

0 Answers   CCIE,

---