one rtd sensor which is connected at middle of distillation column where actual temp. is 100deg but when we tight this sensor at thermowell end it goes down to 90 deg & when remove from the thermowell(but sensor end dipped in well) showing actual reading, what is reason?

3 Answers  

---

please send the hpcl (instrumentation) model placement papers to my mail....

9 Answers   HPCL, Invensys, IOCL, ONGC,

---

can any one tell me when ongc placement test and its forms is available????/ pls tell me if u know

0 Answers  

---

What is the working principle of oxygen analyzers(zirconium oxide type) used in CFBC boilers?

3 Answers   Bajaj, Kohinoor, Wartsila,

---

what is thermocouple output

7 Answers   IPCL,

---

WHY WE WILL USE 0-24VdC IN ELECTRONIC CIRCUITS AND INSTRUMENTATION TRANSMITTERS?

3 Answers   Aban Power, Jindal, JSW, Sugar Factory,

---

how to calibrate a control valve?

7 Answers   Reliance, Telecon Systems,

---

how to measure the output of RTD given the general formula of  rtd.  

2 Answers  

---

why using 4-20ma not using 0-20or why not using 1- 20ma???????

7 Answers  

---

Can we used Condensate Pot on flow transmitter which is using on liquid having sluge and DP transmitter is in pit and below the process line,Can we used Condensate pot for accamulate the Sluge?

1 Answers  

---

Why mmwc unit is used?

0 Answers  

---

what happen if i install my pressure transmitter below the elevation of pipe in natural gas service. Also support your answer

3 Answers   C2C,

---