Answer / k.surya mutyalaro

apart frm electro-galvanic fuel cell, o2 mesrment is also by
zirconia and paramagnetic prnciple,and thus produces mV.

in a analyser ,there b a programming ,which produces the %
accrding to voltage generated due to ionisation

Answer / arun kr

An electro-galvanic fuel cell is an electrical device, one
form of which is commonly used to measure the concentration
of oxygen gas in scuba diving and medical equipment.

A chemical reaction occurs in the fuel cell when the
potassium hydroxide in the cell comes into contact with
oxygen. This creates an electric current between the lead
anode and the gold-plated cathode through a load
resistance. The current produced is proportional to the
concentration of oxygen present.

Why we are using temperature and pressure as a reference when measuring flow of steam?

4 Answers   Shell,

---

what is cascade loop and how it work and why it used instead of PID single loop? In cascade, Which loop is faster and slower? Please explain with loop drawing and example...

2 Answers   Honeywell,

---

Explain the difference between the types of input variables plc?

1 Answers  

---

There is a problem with our HART475 it is not communicating with smart devices error becomes "NO DEVICE FOUND"we have insert 250ohm resistance as per requirement but invain plz tell me the solution?

1 Answers  

---

what is the full formof HART

7 Answers  

---

Actual using of tube bender to bend 2 opposite 90 deg at correct measurement center to center of tubing.

0 Answers   CCIE,

---

Explain the difference between plc and cnc?

0 Answers  

---

why we are using orfice plate? then difference between orfice 7 nozzle plate?

1 Answers   Flour Tech Engineers (P) Ltd,

---

when the instrument tapping on pipe line is located below and transmitter is located above the tapping point for liquid service transmitter, what should we do, is there any additional drain valve is required??

2 Answers  

---

Good evening all I need a small favour regarding reliance paper i wanna probable sample papers(e&i) of reliance. if any of u have any idea about dis then plz mail me back.i belongs to electronics and instrumentation engg.so i need e&i papers. thanking u....

0 Answers  

---

how to define the P,I,D value in tuning pid loops in online.

1 Answers   Thermax,

---

what is linerity and non-linearity?

2 Answers  

---