Answer / mohamed yousuf(instrumentation

radar type level transmitter works on the principle
of "time of flight system " actually this type of
transmitter having antenna used to send and recive the
micro waves these waves having the frequency range in GHZ.
by calculating the time required to send and recieve the
data the distance can be calculated from the following
expression
velocity=2 distance/time
therefore distance =velocity *time /2

for zero level 4ma and for span 20ma has to set

Answer / vikram kumbhekar

first of all we calculated the total lenth, then set 4mA at
zero level & max lenth at 20mA. When we send a RF freq
signal the time required to recieved the signal,that time
will be calculated by following formula

distance=velocity*time/2

in this way we get the value

Answer / vsraj_ece

radar level txr as a geiger counter and the source is emits
the radio waves into the vessel it contains some liquids the
ionised radio electrons move to the chargable ends as a
measurement unit if low liquids are in vessel means higher
electrons move to measurement unit.

Answer / jamal qamar

Radar level measurement is based on the principle of
measuring the time required for the microwave pulse and its
reflected echo to make a complete return trip between the
non-contacting transducer and the sensed material level.
Then, the transceiver converts this signal electrically into
distance/level and presents it as an analogue and/or digital
signal. The transducer’s output can be selected by the user
to be directly or inversely proportional to the span. RADAR
LEVEL MEASUREMENT BASICS

In a ball valve which require 24v dc supply to operate, whose solenoid valve doesn't have any + or - indication, how can we make wiring connectionto solenoid valve?

1 Answers   Process Control Technologies,

---

How r the calculation of process line mpm.

0 Answers   Bhushan Power Steel,

---

yogokowa field bus system transmitter all's we are geting IOP fault in Contiunes please help me fine how we can normal the broblems?

4 Answers   ABB,

---

what is the full formof HART

7 Answers  

---

How to do ma trim in massflow meter?

2 Answers   Pakistan Steel,

---

how to calibrate control valves & power cylinders & ultra sonic level transmitters

0 Answers   ABB,

---

What is feed factor and its Importance in cement industry? How we can solve feed factor?.

0 Answers  

---

Anybody can tell me  how to convert mmHg2o /psi to scfm  please give me formula of conversion

0 Answers   Samsung,

---

Anybody know how to create a ladder programme for power switch in TV remote without using counter... ie TV can be turn on and turn off using single push button switch... on pressing the switch first time TV turn on and hold the on state till i press the switch again, and after TV turn off.

2 Answers  

---

hay friends, i am in trouble to understand PID controller. several times i have study but it is not clear to me have you a simple way to understand.

1 Answers  

---

Whether the DP transmitter can be utilised in the medium of Vaccum for the measurement of Level?

10 Answers  

---

How to convert Differential pressure to flow in TPH

0 Answers   Chettinad, ELCO,

---