components of control circuit belongs to control valve

0 Answers   KOC,

---

Any body have know try work calculation ???

0 Answers  

---

what is Instrument Schedule, and what it is mainly used for?

0 Answers  

---

Explain bernoulli’s theorem.

0 Answers  

---

a flow transmitter [range-0-400mbar] connected in process line. please explain me how to calibrate the flow transmitter , & how to do static error

0 Answers   L&T,

---

---

what are the types of a thermocouple

2 Answers  

---

I want to measure bidirectional steam flow? Kindly suggest me a suitable flow meter. steam is superheated at 41kg/cm2, 350°C

2 Answers  

---

why does mA signal preferred for signal transmission?

12 Answers   Emerson,

---

can any one give me the cost price of yokogawa & rosemount transmitters

4 Answers  

---

how to measure flow with dp

1 Answers  

---

1. What means HART communicator / where it is used / how to use it? 2. Types of Thermocouples and its temperature ranges / output of thermocouple? 3. Types of RTDs and its temperature ranges / output of RTD? 4. Idea about Temperature Transmitters? 5. Difference between Analog and Digital signals? 6. Difference between “2 wire” and “4 wire” system / instruments? 7. Difference between “Potential” and “Potential free” contact? 8. Types of flow meters / transmitters? 9. Types of level transmitters? 10. Difference between “Power/Control” cable and “Instrument” cable? 11. What means “shield” and “screen” in cables / how it is useful? 12. Draw a schematic of closed loop circuit of flow / level / pressure / temperature? 13. Idea about calibration of Control valve / positioned / I/P? 14. How to bypass a digital/analog signal in PLC/DCS by hardwire and software?

6 Answers   JSL,

---

What is differnece between leveltroll and interface leveltrol?

2 Answers  

---