Explosion Proof Ultrasonic Level Meter for Water with Compact Version

1. Application:

This series is an integrated two-wire ultrasonic level gauge, continuous non-contact level measurement of liquids and solids. It consists of a probe and an electronic device, both of which are leak-proof structure. This series of products can be widely used in the metallurgical industry,

chemistry, electricity.

2. Features:

1) Compact continuous non-contact liquid level measurement;

2) Bbody design, easy to install;

3) Over voltage and over current protection, lightning protection;

4) Large LCD or LED display window, easy to debug and observe;

5) Strong anti-interference ability;

6) 4-20mA output;

7) Intelligent signal processing technology to ensure that the instrument can meet all kinds of work occasions

8) Full metal case (IP67), sealed, alkali resistant, meet harsh environment.

3. Measuring principle: Time-of-flight method

The level gauge consists of an ultrasonic probe and an electronic tube unit-level instrument mounted on top of the container, and under the control of an electronic device, the ultrasonic probe transmits ultrasonic pulses to the subject. The sound waves are reflected on the surface of the object, and some of the echoes received by the detector are converted into electrical signals

The signal meter measures the time between pulse sending and receiving. The time is directly related to the distance between the probe and the object under test. The electronics detect this time and calculate the measured distance based on a known sound speed. Level values can be obtained by subtracting.

H: installation height

D: distance value

L: level value

B: blacking distance

F: full scale

4. Technical data:

Basic data

Note: When using to measuring solid level, the most energy of ultrasonic is absorbed or scattered by solid level, so the back wave is very little, the valid measuring range of solid level is about 50% of liquid level. And the valid measuring range of solid level is determined by the installing location and rang.

The blacking distance: