Answer / karthik32

sensors senses a physical variable,transducers senses and converts the variable to another form.

Answer / vikas

sensor working only sense and transducer working sense and convert signal mech to electrical.

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

2 Answers  

---

whyvibration probe (bently nevada ) is set -10 volt for zero reference?

2 Answers  

---

whats the reason for control valve not installed -90degree (down position)

1 Answers  

---

Transmitter reading is zero but in DCS showing one Bar what is the reason ?

3 Answers  

---

Basic working principle of control valves

1 Answers  

---

why the discharge pressure of ID fan showing negative at fan running condition.(boiler operating condition.)

5 Answers  

---

What is the difference between Pressure Safety Valve and Pressure Relieve Valve, in what condition we prefer choose Pressure Safety Valve rather than Pressure Relieve Valve? and vice versa

2 Answers   Vedanta,

---

How is flow measured in square root?

0 Answers  

---

How can we say that accuracy of measurement increases by using 3 or 4 wire RTD? because for example: If resistance of RTD element is say r ohms and Resistance of the cable from transmitter to RTD is R ohms And if 4 wire RTD is used, ____._____________________ R ohms | |_____._____________________ R ohms / \ / r ohms \ \ | |______.__________________ R Ohms | |_______._________________ R ohms Then the actual resistance measured will be: Total = r + R/2 + R/2 = r +R Ohms Note: r+R instead of r ohms. hence error

2 Answers  

---

why the supply frequency used in America is 60Hz while that used in India is 50Hz?,

2 Answers   Bosch, Genco,

---

what is moisture probe? What are there types? What is there working principle and how they works? guys this is one of technical question I had ask in interview. If you know its answer please let me know. The interviewers were more interested in microwave moisture probe, so if you find its any link please just forward me on my mail id.avinash1200@gmail.com Thanks in advance.

0 Answers  

---

can a control valve works without positioner?why need tunning of c/v?

4 Answers  

---