The intelligent radar level meter adopts a microwave pulse measurement method and can operate normally in the industrial frequency band range with low beam energy. It can be installed in various metal and non-metal containers or pipelines for continuous measurement of liquids, slurries, and contact. Suitable for situations with large changes in dust, temperature, pressure, and the presence of inert gases and vapors. The radar level meter is harmless to both the human body and the environment, and has the advantages of not being affected by the specific gravity of the medium and not requiring on-site calibration.
1. Introduction
The intelligent radar level meter adopts a microwave pulse measurement method and can operate normally in the industrial frequency band range with low beam energy. It can be installed in various metal, non-metal containers or pipelines to continuously measure the level of liquids, slurries, and particles in a non-contact manner. Suitable for situations with large changes in dust, temperature, pressure, and the presence of inert gases and vapors. The radar level meter is harmless to both the human body and the environment, and has the advantages of not being affected by the specific gravity of the medium, not being affected by changes in dielectric constant, and not requiring on-site calibration. Whether it is for industrial needs or economic considerations for customers, it is a good choice.
2. Working principle
The intelligent radar level meter adopts a microwave pulse measurement method and can operate normally in the industrial frequency band range with low beam energy. It can be installed in various metal, non-metal containers or pipelines to continuously measure the level of liquids, slurries, and particles in a non-contact manner. Suitable for situations with large changes in dust, temperature, pressure, and the presence of inert gases and vapors. No harm to human body and environment, allowing customers to buy smart radar level meters with peace of mind and worth it. High frequency microwave pulses are transmitted and received through an antenna system, while radar waves operate at the speed of light. The running time can be converted into level signals through electronic components. A special time extension method can ensure stable and accurate measurements in an extremely short period of time. Even in complex working conditions with false echoes, the use of microprocessing techniques and debugging software can accurately identify the echoes of material levels.
input
The antenna receives the reflected microwave pulse and transmits it to the electronic circuit. The microprocessor processes this signal to identify the echo generated by the micro pulse on the surface of the material. The correct recognition of echo signals is completed by intelligent software, with an accuracy of up to millimeter level. The distance D from the material surface is proportional to the time travel T of the pulse
Ratio: D=C × T/2, where C is the speed of light, and since the distance E from the empty tank is known, the material level L is: L=E-D
Output
By entering the empty tank height E (=zero), full tank height F (=full range), and some application parameters to set, the application parameters will automatically adapt the instrument to the measurement environment. Corresponding to 4-20mA output.
3. Application media
Power plant: coal pile, raw coal silo, fuel silo, water storage tank, waste gas purification tank, silo pump, ash silo, oil tank, etc;
Oilfield: crude oil or finished oil storage tanks, three-phase separators, settling tanks, sewage tanks and oil-water interfaces, drilling mud tanks, etc;
Chemical industry: crude oil distillation tower, raw and intermediate material silos, reaction tanks, ammonia tanks, solid material silos, separators, etc;
Metallurgy: ore silos, ore crushers, raw material silos, auxiliary material silos, blast furnaces, alumina powder silos, electrolytic tank buffer tanks, etc;
Cement: stone silo, raw material silo, cement silo, coal powder silo, slag storage silo, etc;
Water treatment: reservoirs, sewage tanks, water treatment tanks, sedimentation tanks, deep wells, drinking water networks, etc;
Paper making: raw material warehouse, storage tower, drying drum, chemical material storage warehouse, etc;
Other industries include quarries, food, pharmaceuticals, environmental protection, shipbuilding, etc.
4. Characteristics
1. No blind spots, high precision;
2. Two wire technology is an excellent alternative product for differential pressure instruments, magnetostriction, radio frequency admittance, and magnetic flip panel instruments;
3. Not affected by pressure changes, vacuum, temperature changes, inert gases, smoke, steam, and other environmental factors;
4. Easy to install, sturdy and durable, maintenance free;
5. The output signal is 4mA~20mA/Hart protocol, which is easy to calibrate and can be easily calibrated on site through digital LCD display. Simple configuration settings and programming can be achieved through software;
6. Sensitive measurement and fast refresh rate;
7. Suitable for high-temperature working conditions, up to a process temperature of 200 ℃, and can reach 350 ℃ when using high-temperature extended antennas.
Post time: 11-12-23