Answer / mrmk

At Lowest temperature area applications.(Below 0 Deg Cent)

what is air to open and air to close control valve and difference btwn this...and how to measure milli amp by this...and what is the role of positioner and i/p converter in this..plz help me

2 Answers   HCL, SOC,

---

kindly sent some demo question and answer

0 Answers   HPCL,

---

why we cant transmit the dc current easily

1 Answers  

---

how to replace the smart transmitter software

1 Answers   L&T,

---

HELLO FRIENDS PLZ EXPLAINE ME WHAT IS ORIFICE?AND HOW WE ARE USING IT IN INSTRUMENTATION

5 Answers   Wartsila,

---

Can any body give detail about orifice sizing?

5 Answers   Essar,

---

What is the difference between modbus,fieldbus & profibus

0 Answers   NSL,

---

What is cable size for intrenal wiring in DCS or PLC ,from any card to Terminal amd Why

2 Answers  

---

How many loops are there in the power plant? how many closed & open loop in the power plant ? Please give me the exact clarification?

2 Answers   Lanco, Reliance,

---

If the Barrier Fails during online then What will be the control valve position in field or Positioner action in the field.

3 Answers  

---

Is it possible to convert 4 wire transmitter to convert to 2 wire with additional relay.Please send detial with drawing,i will appreciate.

2 Answers  

---

What is an instrumentation amplifier? How is it better than a differential amplifier when handling outputs from a wheatstone's bridge?

2 Answers   Honeywell,

---