Answer / carl_ellis

The difference in temperature between the hot end and the
cold end, call a thermal gradient, of a pair of wires made
from dissimilar metals produces a voltage.

Tell 'em Carl sent you.

Answer / nandu

T/c has to junctions
1.hot 2.cold
depending upon the
difference b/w two
junctions the mV can
be measured becoz of
T/c material its a alloy

How a pH sensor & analyzer work at waste water treatment plant, whats the principle & science is beyond this,How pH sensor sence & convert signal & move toward analyzer & analyzer show reading in percent? also what is temperature compensate option in analyzer

1 Answers  

---

what is the function of a zener diode ?

2 Answers   Honeywell,

---

what is the square root flow transmitter formulla ?

2 Answers  

---

which type signal come control valve

6 Answers  

---

why any measurement made interms of pressure is more accurate ? to be more precise most of the flow velocity is made interms of pressure and it is accurate. what is the reason behind pressure measurement being accurate ?

0 Answers   NATPET,

---

---

WHAT IS MEANT BY PROJECT MANAGEMENT STRATEGIES IN INSTRUMENTATION?

0 Answers  

---

hello this is dhinakar i am completed my instrumentation engg . recently i got job in sugar industry side. i like to ask one question can any one say what are the things i have to follow know more about industrial instrumentation,,,,,,,

6 Answers  

---

I was working on calibrating turbidity transmitters endress+hauser at effluent polishing plant.We calibrated using NTU buffers.What happened is that when we immersed the sensor, everytime we raise and lower the sensor gradually, the reading will vary.my question is that is there any specifications on what is the required distance from the bottom of the container with buffer to the face of the sensor?Is it ok to install the sensor in a medium which has turbulence specially if bubbles are present?

0 Answers  

---

where uses EXe /EXd/Exo/Exn/Exp/Exq/EXia

0 Answers  

---

why we us isolation barrier in hazardous area how it works to protect the area and please clarify its current flow.

0 Answers  

---

What is meant by cold float of compressor shaft.

1 Answers   Sabic,

---

What is the basic difference between 2 Wire, 3 Wire and 4 Wire RTD

2 Answers  

---