Guided wave radar level gauge

guided wave radar level gauge has the advantages of low maintenance, high performance, high accuracy, high reliability, and long service life. Compared with contact instruments such as capacitors and weights, it has unparalleled advantages. The transmission of microwave signals is not affected by the atmosphere, so it can meet the requirements of harsh environments such as volatile gases, high temperatures, high pressures, steam, vacuum and high dust during the process. This product is suitable for harsh environments such as high temperature, high pressure, vacuum, steam, high dust and volatile gases, and can continuously measure different material levels. The main technical indicators of this instrument reach or exceed similar products at home and abroad, and it is easy to install and debug. It can be used alone or in a network. It can be widely used in metallurgy, building materials, energy, petrochemicals, water conservancy, food and other industries.
Guided wave radar level gauge technical parameters:
Application: liquid
Measuring range: meters
Process connection: thread, flange
Process temperature: ℃
Process pressure: ~
Accuracy
Frequency range:
Explosion-proof level: b b
Protection level:
Signal output R (two lines)
Guided wave radar Liquid level meter feature description:
Features:
It can measure any medium with a dielectric constant greater than or equal to.
. Generally used to measure the viscosity of media that is not prone to adhesion.
.The maximum range of rod radar can reach meters.
.It has strong ability to inhibit steam and foam, and the measurement will not be affected.
.For liquid materials with relatively small dielectric constants, the double-probe measurement method can be used to ensure good and accurate measurement accuracy.
Measurement Principle
The product is a measuring instrument based on the time travel principle. Radar waves run at the speed of light, and the running time can be converted into level signals through electronic components. The probe emits a high-frequency pulse and propagates along the cable. When the pulse encounters the material surface, it is reflected back and is received by the receiver in the instrument, which converts the distance signal into a level signal.
Input
The reflected pulse signal is transmitted along the cable to the electronic circuit part of the instrument. The microprocessor processes the signal and identifies
the echo generated by the microwave pulse on the material surface. The correct echo signal identification is completed by intelligent software. The distance from the material surface
is proportional to the time travel of the pulse: where is the speed of light
Since the distance of the empty tank is known, the material level is: < br/> Output
Set by inputting the empty tank height (zero point), full tank height (full scale) and some application parameters. The application parameters will automatically adapt the instrument to the measurement environment. Corresponds to the output.
Measuring range:
Measuring range
Empty tank distance
B Top blind zone
Minimum distance from probe to tank wall
Top blind zone refers to the highest surface of the material Minimum distance from the measurement reference point.
The bottom blind zone refers to a distance near the bottom of the cable that cannot be accurately measured.
The effective measurement distance is between the top blind zone and the bottom blind zone.
Installation location:
. Try to stay away from the discharge port and feed port.
.For metal cans and plastic cans, there will be no collision within the entire measuring range. If it is a metal tank, do not install the level meter in the center of the tank.
.It is recommended to install it at the diameter of the silo.
.The minimum distance between the cable probe or rod probe and the tank wall shall not be less than one centimeter.
.The distance between the bottom of the probe and the bottom of the tank is approximately.
.The minimum distance between the probe and the obstacles in the tank shall not be less than.
.If the bottom of the container is tapered, the sensor can be installed
in the center of the top of the tank, so that it can measure all the way to the bottom of the tank.