Answer / Mithun Singh Rana

The First Echo (Fresnel zone) and Echo Window are important concepts in Radar Level Transmitters. The First Echo refers to the distance within which the transmitted signal from the radar returns for the first time, typically due to the nearest object. The Echo Window is the area around the target where the reflected signal can be detected by the radar transmitter. It's crucial to ensure that the tank or vessel wall is located within the First Echo and Echo Window to achieve accurate level measurements.

What is first echo & echo window in radar type level transmitter?

1 Answers  

---

Which topics are covered in Process Control?

1 Answers   Honeywell, L&T,

---

what is difference b/w the solinoid volve and autodrain?

3 Answers  

---

how many type conductivity sensor ?

1 Answers   Process Automation,

---

hello this is dhinakar subramanian. how to piping and instrumenation drawings and also how to create the data sheets...

1 Answers  

---

Pls.could any one Clarify the following with an example. 1.At What condition Close on Rise and Close on Fall Pressure Switch contacts are used. 2.If Pressure is abnormal as per set pressure,if connecting Terminal of pressure switch breaks,how the voltage extends to Relay base. 3.Are these contacts come under fail safe philasaphy.

1 Answers  

---

hello.my friends.i am an electronics & instrumentation engineer.i want to know Q1.why lugs use in instrumentation cable termination? Q2.if limit switch not working what to do?

2 Answers  

---

Dear Sir/Madam, I am attending an interview for ETs in BHEL. I have cleared my written test under Electronics (Instrumentation). This is the first time I am appearing for an interview. Can any one who has attended the interview earlier give me a clue to face the interview. With regards Sindhu

2 Answers   Siemens,

---

1.how can calibration temperature transmitter and flow transmitter? 2.

0 Answers   Gulf Jobs,

---

What is force balance principle?

1 Answers  

---

how can check the loopchecking for valves?

3 Answers  

---

What is the use of keyphasor in turbine.

7 Answers   Hindustan Zinc, R&D,

---