Level meter on 海麦伦雷达

1. Radar Level Meter Product Overview 1.1 Introduction ML60 series sensor is an advanced radar level measurement instruments, measuring distances up to 20 meters and can be used for storage tanks, intermediate buffer tank level measurement or process vessels and various silos, output 4 ... 20mA analog signals. 1.2 Features and Benefits ● the use of advanced non-contact measurement, extremely stable material ● measuring liquid and solid medium level ● You can measure all the dielectric constant> 1.8 Media ● Measuring range 0 ... 20m ● two-wire system, Loop-powered technology, the supply voltage and the output signal through a two-core cable transmission, ● 4 ... 20mA output / HART (two-wire) ● Unaffected by pressure, temperature, inert gas, vacuum, dust, noise, steam, dust, and other conditions affecting ● from medium density, viscosity and temperature changes affect ● Process pressure up to 40bar, process temperatures up to 220 ℃, the resolution of 1mm, no blind spots, high precision. ● Two-wire technology, differential pressure meter, magnetostrictive, RF Admittance, magnetic flap excellent alternative instruments. ● measurement sensitivity, refresh fast, easy to install, durable, maintenance-free. ● measurement method using microwave pulses, and work in the industrial frequency band range. Low energy beam can be installed in a variety of metals, non-metallic containers or pipes, no harm to humans and the environment. 1.3 Measurement principle by pulsed high-frequency microwave transmitting and receiving antenna system, radar speed of light, running time can be converted into a level signal by the electronic component. A special time to extend the method to ensure stable and accurate measurements. Even under conditions more complex situation, there is no false echoes, with the latest micro-processing technology and debugging software can accurately identify the level of echo. 1.4 Enter the antenna receives the reflected microwave pulses and transmits it to the electronic circuit, the microprocessor processes this signal, identify micro-pulse echo generated in the material surface. Correct echo signal recognition by the intelligent software to complete, precision can reach millimeter. The distance D and the distance from the material surface of the pulse travel time T is proportional to: D = C × T / 2 (where C is the speed of light) due to the empty distance E is known, the level L is: L = ED applications: storage or process vessels corrosive liquids, slurries and solids such as: water, liquid storage tanks, acid tanks, slurry storage tanks, solid particles and small tanks measuring range: 20 m Process connection: flange medium temperature: -20 -150 ℃ Process pressure: -1.0-20bar Repeatability: ± 3mm accuracy: <0.1% Frequency range: 6.3GHz Explosion / Protection class: Exd II BT4 / IP67 Signal output: 4-20mA / HART (two-wire) Application: Adaptation various storage containers or process measurement environment, liquids, slurries and solids such as: crude oil, light oil storage tanks, coal, pulverized coal positions, volatile liquid storage tanks, coke material level, slurry storage tanks, solid particles measuring range : 35 m Process connection: flange Process temperature: -20-220 ℃ Process pressure: -1.0-40bar Repeatability: ± 3mm accuracy: <0.1% Frequency range: 6.3GHz Explosion / Protection class: Exd II BT4 / IP68 signal output : 4 ... 20mA / HART (two-wire) (two-wire)