Level Meter usually refers to a liquid level meter, which is an instrument used to measure the liquid level height in a container.
Common Types
Magnetic float level meter: Using the buoyancy principle and magnetic coupling, the float moves up and down with the change of liquid level, and converts the liquid level signal into a visual or electrical signal output through a magnetic flap or magnetic sensor. It has the advantages of simple structure, easy use, stable performance, long service life, easy installation and maintenance, and is widely used in oil processing, food processing, chemical industry, water treatment, pharmaceuticals, electricity, papermaking, metallurgy, ships and boilers.
Submersible level meter: Based on the principle that the static pressure of the measured liquid is proportional to the height of the liquid, an isolated diffused silicon sensitive element or a ceramic capacitor pressure sensitive sensor is used to convert the static pressure into an electrical signal, which is then converted into a standard electrical signal after temperature compensation and linear correction. High sensitivity, short response time, high precision, all stainless steel sealed structure, waterproof, corrosion-resistant, compact, easy to install and put into use, suitable for level measurement of various media in systems and industries such as petrochemical, metallurgy, electricity, pharmaceutical, water supply and drainage, environmental protection, etc.
Magnetostrictive level meter: The starting pulse is generated by the electronic circuit in the electronic compartment, and a rotating magnetic field is generated when it is transmitted in the waveguide wire. The magnetostrictive effect is generated when it meets the permanent magnetic field in the magnetic ring or float, causing the waveguide wire to twist, which is sensed by the energy pickup mechanism and converted into a current pulse. The time difference between the two pulses is calculated by the electronic circuit, thereby accurately measuring the displacement and liquid level being measured. It has the advantages of high precision, good stability, high reliability, diverse output signals, long service life, safety and reliability, etc. It is widely used in the monitoring, alarm and control of physical parameters such as liquid level, temperature, density, interface conditions in the fields of industrial process control, petroleum processing, pharmaceuticals, food processing, water treatment, gas stations, grinding machinery, valve opening control, etc.
Ultrasonic level meter: By measuring the time from the emission to the reception of the ultrasonic pulse, the distance from the sensor to the object to be measured is calculated, and then the liquid level height is obtained. Due to the non-contact measurement, the measured medium is almost unrestricted, and it can be widely used in the measurement of the height of various liquids and solid materials. It has high reliability, good stability, automatic power adjustment and temperature compensation. The sensor supports customization of various materials, which can meet various corrosive sites and has strong anti-interference ability.
Radar level meter: Using the radar transmission, reflection and reception working mode, the antenna emits electromagnetic waves, which are reflected by the surface of the object to be measured and received by the antenna. According to the relationship that the time from the emission to the reception of the electromagnetic wave is proportional to the distance to the liquid surface, the distance from the liquid surface to the radar antenna is calculated, thereby obtaining the liquid level of the liquid surface. In actual use, there are two types of radar level meters: frequency modulation continuous wave type and pulse wave type. The pulse wave radar level meter has low power consumption and can be powered by a two-wire 24vdc. It is easy to achieve intrinsic safety, high accuracy, and a wider range of applications.
Selection points
Measurement medium: Different level meters have different adaptability to the medium. For example, some level meters are suitable for clean liquids, while others are suitable for viscous, corrosive or liquids containing solid particles. When selecting a level meter, it is necessary to select a suitable level meter according to the physical and chemical properties of the measured medium to ensure the accuracy and reliability of the measurement.
Measurement range: According to the size of the container and the range of liquid level changes, select a level meter with a suitable range to ensure that the level meter can accurately measure the change of the liquid level and avoid insufficient or wasteful range.
Accuracy requirements: Different applications have different requirements for the accuracy of level measurement. For example, in trade settlement, product handover and energy metering, it is necessary to select a level meter with a high accuracy level. In some process control situations, it is sufficient to select a level meter with different accuracy levels according to the control requirements.
Working environment: The working environment conditions of the level meter, such as temperature, pressure, humidity, explosion-proof requirements, etc., will also affect the selection of the level meter. For example, in harsh environments such as high temperature, high pressure, flammable and explosive, it is necessary to select a level meter with corresponding protection level and explosion-proof performance.
Installation method: There are many ways to install the level meter, such as top installation, side installation, insertion, etc. It is necessary to select the appropriate installation method according to the structure of the container and the on-site installation conditions to ensure the normal installation and use of the level meter.
SUPCON: SUPCON Technology Co., Ltd. was founded in 1999. It is a leading supplier of industrial automation, digitalization and intelligent products and solutions. It is committed to providing industrial enterprises mainly engaged in process industries with intelligent manufacturing products and solutions with automation control systems as the core, covering industrial software, automation instruments and operation and maintenance services.
Tiankang Group: Founded in 1974, it is a cross-industry and diversified group company with products covering instrumentation, optical cables, pharmaceuticals and medical treatment, protective equipment and new energy. Its annual output of instruments and instruments reaches 1.88 million units/sets, and its annual output of optical cables reaches 2.88 million kilometers. Its products are widely used in petroleum, electricity, chemical industry, new energy and other industries.
DDTOP: Founded in 1992, it is a well-known brand in the domestic level meter and flow meter industry, providing products and solutions such as level meters, flow meters, magnetic pumps, and flow calibration devices. Tongbo products are widely used in the petrochemical industry. Since its establishment, it has continuously served more than 3,500 customers, participated in nearly 500 major petrochemical projects, and obtained various international safety-related certifications from countries around the world.
ELECALL: ELECALL is an electrical sales company mainly engaged in e-commerce, mainly engaged in hardware tools, instruments and meters, home decoration, low-voltage electrical appliances, etc. Since its establishment in 2008, the company has continued to grow in scale and now has a number of chain electrical halls in Zhejiang, which gather all the products in the electrical industry and provide customers with a broad space to purchase products.
Keda Instrument: Tieling Keda Instrument Co., Ltd. is a joint-stock high-tech instrument processing and manufacturing company, mainly engaged in the design and production of level products, liquid level monitoring, and flame monitoring products. The main products are heavy hammer level gauges, high-pressure two-color water level gauges, electric contact water level gauges, magnetic floating level gauges, quartz tube level gauges and other products. Over the years, based on the introduction of foreign advanced technology, the high-pressure and ultra-high-pressure two-color water level gauges produced have become the bright eyes of power stations, boilers, and petrochemical heating furnaces.
Ye Li Industrial Control: Hangzhou Ye Li Technology Co., Ltd. was established in 2004. Its predecessor was Hangzhou Ye Li Electromechanical Equipment Co., Ltd., and the current company was established in 2010. Adhering to the concept of "starting from the user's perspective, thinking what the user thinks, based on integrity, and providing users with high-quality services", we are cautious and bold in innovation and change, guiding Ye Li Technology from small to large, from weak to strong, and constantly surpassing every competitor who has been ahead, creating more value for users.
Huakong Xingye: Beijing Huakong Xingye Technology Development Co., Ltd. is engaged in the design, production, and sales of various sensors, transmitters, various measurement and control instruments, thermal instruments, field controllers, computer control systems, data acquisition systems, various environmental monitoring systems, control system application software, and embedded system development and application. Since its establishment, the company has won customer recognition with exquisite technology, rigorous design, scientific engineering technology solutions, high-quality product quality and high-quality service.
Tuco: Jinan Tuco Electronics Co., Ltd. is committed to the research in the field of ultrasonic (sonar) technology. Relying on its own technological advantages and the scientific and technological talent resources of key universities and scientific research institutes, the company has established a leading scientific research and technical team. With strong technical research and development capabilities, it has developed products such as external ultrasonic level gauges, external ultrasonic level switches, and portable ultrasonic level gauges with independent intellectual property rights. It has obtained manufacturing measuring instrument licenses, explosion-proof certifications, software product certifications, safety integrity SIL level certifications, etc. It is a source manufacturer that truly owns core technology and independent intellectual property rights, with complete qualifications. It is a professional OEM manufacturer of such products and provides customers with customized services.
Tokugawa Instruments: Jiangsu Tokugawa Instrument Technology Co., Ltd. mainly produces, develops and sells flow, level, pressure, calibration, temperature and other series of instruments, and provides complete automation control system solutions to provide more efficient, energy-saving and safer services for the production of power, petrochemical, metallurgy, chemical, environmental protection, food and other industries.
Hangzhou Yucheng Technology Co., Ltd. is an enterprise that integrates the research and development, design, production, and sales of instruments and meters (pressure gauges, pressure controllers, thermometers, float switches, and pressure transmitters). The company has two major production bases in Anhui, with standardized factory buildings covering over 2000 square meters and more than 100 employees. Our company's products are sold well throughout the country with excellent quality and comprehensive services. Currently, we have established a sales network of multiple offices and hundreds of agents. Our products are widely used in automation equipment, medical equipment, food, printing, chemical, petroleum hydraulic, pump and valve, textile, printing and dyeing, refrigeration equipment, household and other mechanical and civil industries. Our excellent quality meets the preferences of customers in multiple countries and regions. Since its establishment, the company has always adhered to the concept of "science and technology are the primary productive forces" in the construction and development of research teams.
At present, a research team of more than 10 people, including 5 former engineers from Gaoyou Engineering, has been established. We have a strong production process and advanced testing equipment for the annual meeting. Our body cracking series of products have been issued by the National Quality and Technical Supervision Bureau. We have strong technical strength, exquisite production technology, and a comprehensive scientific management system for edge control. Our wide range of products have received national quality and technology certification.
