Ultrasonic level meter
1.power supply:20~35VDC,4~20mA output
4.pressure: AT pre
The ultrasonic level metering technology is based on the principle that the energy transducer (the sensor) emits an ultrasonic pulse train, receives and selects some echoes reflected from the medium surface, converting them into electronic signals.
The ultrasonic pulse travels at the speed of sound, and the time interval between emitting and receiving is in proportion to the distance between the sensor and the medium surface. The formula relating the distance S, sound speed C and the transmitting time T is as following:
The overlapping of the emitting and reflecting pulse within an area close to the sensor can not be identified and measured due to the limit width of the emitting ultrasonic pulse, the area is called Dead Zone. The distance of the dead zone is associated with the working frequency of the ultrasonic level transmitter.
The measuring reference level is at the bottom of the sensor.
A. Dead Zone
B. Measuring Range
C. Full of Medium
D. Zero Point
Features of the instrument:
1. Adapting microprocessor advanced
2. Unique echo processing technology
3. Storge of False echo
4. Internal temperature compensation
5. Narrow beam angle and high quality
6. Simple debugging and calibration
Main Application: Liquid level measurement in industrial areas, especially for water treatment industry.
Measuring range: 0.4m … 15m for liquids as below table
Process connection: M66×2 or flanges
The housing material of the transducer: PTFE, PU/PC, Al-Dicasting
Process temperature: -40°C … +70°C
Process pressure: -0.02MPa – 0.1MPa
Accuracy: ±0.5% of full range
Output: 4 – 20 mA or 4 - 20 mA/HART
Power supply: 24 V DC for two wires
24V DC/220V AC for four wires
Liaoyang Instrument Technology was founded in 1987, is a set of product development, research, production, manufacture of high-tech enterprises. As China National Petroleum Corporation a supply network members and China Environmental Protection Industry Association, and the ISO9001 quality system certification of enterprises, production of quality products, increase customer satisfaction is the company's many years of management policy. The past 20 years the company has been engaged in the development and production of petroleum, chemical, metallurgy, electric power, building materials and industrial process control instrumentation. Tsinghua, North Jiaotong University's production, learning and research base. The company has fixed assets of sixteen million yuan, annual output value of more than three thousand yuan, annual taxes of more than 800 million, the company employees 138 people, including scientific and technical personnel accounting for more than 50%. The company's level meters, pressure meters, flow meters, temperature and pressure instrumentation, environmental protection instruments and other 10 categories of products 38 species, of which there are six national patents, including explosion-proof detector reserves intelligent drilling mud for oil and gas exploration industry-specific equipment. The company's customers across the country more than 30 provinces, autonomous regions, municipalities, and exported to the United States, Southeast Asia, Eastern Europe, the Middle East and some other countries and regions, covering petroleum, chemical, metallurgy, electric power, building materials, municipal and other industries to meet the Field measurements of a variety of industrial needs, and set up a perfect modern enterprise marketing network.