Answer / gurram

O2 Analyser works on the principle of Paramagnetism principle.
This analyser contains two cylindrical chambers one reference
chamber and the other one is sample chamber.In the sample
chamber a permanant magnet will be fixed.In both the chambers
there will be pre defined heated ring resistors will be placed
which forms a wheatstone bridge.If the process gas without o2
passes in both the chambers.As there is no o2 the bridge is in
balanced condition only.If the process gas contins o2 flows
due to magnetic effect the flow in the sample chamber will
increase and there is a unbalance in the temperature of the
ring resistors.The difference will be processed and displayed
as percentage of o2 presented in the process gas.

any questions on motor and energy conversions machines?

0 Answers   ABB,

---

What is the difference between a Extension cable and a copnesating cable.Where can we use compensating cable. Is anywhere compensating cable are used for mv transmission to the indicator.

1 Answers  

---

How to do gas analysers calibration in AUTO and Manually by using zero and span gas?

0 Answers  

---

i want interview questions about PROCESS CONTROL INSTRUMENTATION , SENSORS AND TRANSDUCERS IF ANY BADY KNOW ABOUT THAT PLEASE SEND TO MY MAIL karumudi1003@gmail.com

8 Answers   Honeywell, Reliance,

---

What is the exact output of eddy current proximity probe? For vibration mesurment?

2 Answers  

---

---

Explain the thermocouple and RTD?

1 Answers  

---

what is working principle of vibration prob

3 Answers  

---

what is the difference b/w wet leg & dry leg level method

2 Answers  

---

What is the use of gauge?

0 Answers  

---

why we require Differential pressure?Why we use Orifice Plate?

3 Answers  

---

why we are using drum level control valve air to close?

0 Answers  

---

What are different types of orifice plates? State their uses.

0 Answers  

---