Your Professional Ultrasonic Level Gauge Supplier
Xian Baochen Information Technology Co., Ltd. is located in high-tech Zone, Xi 'an, Shaanxi Province, China, is a focus on sensors, transmitters, inverters, power semiconductor devices and supporting instruments R & D, manufacturing, sales and service enterprises. The company invests in research and development team, cooperates with excellent universities, integrates industry resources, and provides the best quality solutions for domestic and foreign users. Enterprise mission: to meet user needs and create value for customers.
Why choose us
Sales Market
We Products are exported to Europe, America, Southeast Asia, West Asia, Central Asia and other countries around the world. Our products are well received in these markets.
Our Service
Able to quickly respond to customer needs, to provide personalized customization, timely delivery, professional technical support and perfect after-sales service.
Strict Quality Control System
Able to efficiently produce large quantities of products, advanced production processes and stable supply chains, the implementation of strict quality control system. Constantly introduce new technologies and new materials to improve product performance and production efficiency.
Wide Range of Applications
Through the EU CE, RoHs testing, products are widely used in petrochemical, water conservancy and hydrology, machinery and equipment, automobile manufacturing, industrial process control, weighing measurement, people's livelihood applications and other fields.
Ultrasonic Level Gauge
Ultrasonic level gauge is also called ultrasonic level meter. Ultrasonic water level meter is a non-contact level measuring instrument with high measurement accuracy, easy installation and basically maintenance-free. It is often used to measure the liquid level in various containers, as well as the water level of canals, pools, reservoirs, rivers, lakes and seas. It can also measure the interface level and liquid level difference. It is especially suitable for sewage and corrosive occasions. It can also measure the flow rate when combined with troughs and weirs to form an open channel flow meter. Therefore, it is more and more widely used in many industries or fields such as steel, petrochemicals, water treatment and water conservancy.
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Blind area |
0.25m ~ 0.6m |
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Ranging accuracy |
0.25% ~ 0.5% (standard conditions) |
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Ranging resolution |
1mm |
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Pressure |
Below 4 atmospheres |
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Instrument display |
With LCD display liquid level or space distance |
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Analog output |
4 ~ 20mA (two-wire system) |
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Digital outpu |
RS485+4~20mA (four-wire system) + two-way switch quantity |
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Power supply voltage |
Standard 24VDC power supply, optional 220VAC power supply |
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Ambient temperature |
-20℃ ~ +60℃ (please specify high temperature customization) |
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Protection level |
IP65 / IP68 |
Non-Intrusive Measurement: Our liquid level meter offers non-contact measurement, eliminating the risk of sparks or static that could lead to explosions in volatile environments.
Easy Installation: With no need for container penetration, installation is straightforward and cost-effective, making it an ideal choice for retrofitting existing systems.
Wide Range of Applications: Suitable for use in high-temperature, high-pressure, sealed, and hazardous environments, a variety of liquids, including flammable, explosive, toxic, and corrosive substances.
High Measurement Precision: Accuracy up to 1‰with an extremely low blind zone, ensuring accurate monitoring at all times.
Temperature Compensation Technology
Our advanced temperature compensation technology ensures consistent accuracy across varying temperatures.
Easy Calibration
Our unique pipeline calibration technique makes calibration a breeze, saving you time and effort.
Cost-Effective
The simple installation and calibration processes significantly reduce operational costs, making it an economical choice for long-term use.
Types Of Ultrasonic Level Meters
4-20mA Four-wire System Ultrasonic Liquid Level Meter
This type of ultrasonic level meter uses a four-wire system to provide power to the transducer and transmit the measurement signal. It is suitable for applications where long cable runs are required or where the level meter needs to be connected to a remote control system.
4-20mA Integrated Two-Wire Liquid Level Gauge
This type of ultrasonic level meter uses a two-wire system to provide power to the transducer and transmit the measurement signal. It is suitable for applications where simplicity and cost-effectiveness are important.
Four Line Ultrasonic Level Gauge
This type of ultrasonic level meter uses a four-wire system to provide power to the transducer and transmit the measurement signal. It is suitable for applications where high accuracy and reliability are required.
Applications of Ultrasonic level meters
Liquid Level Measurement
Ultrasonic level meters are commonly used to measure the level of liquids in tanks, reservoirs, and pipelines. They can be used to monitor the level of water, oil, chemicals, and other liquids.
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Solid Level Measurement
Ultrasonic level meters can also be used to measure the level of solids, such as powders, grains, and pellets, in silos, hoppers, and bins.
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Slurry Level Measurement
Ultrasonic level meters can be used to measure the level of slurries, which are mixtures of solids and liquids, in tanks and pipelines.
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Overflow Prevention
Ultrasonic level meters can be used to prevent overflow in tanks and other containers by providing an alarm when the level reaches a certain threshold.
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Inventory Management
Ultrasonic level meters can be used to monitor the inventory of liquids and solids in tanks and silos, which can help to optimize the production process and reduce waste.
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Core Components of Ultrasonic Level Gauge
Transducer
The transducer is the heart of the ultrasonic level meter. It emits the ultrasonic pulses and detects the reflected pulses.Transducers can be made of various materials, such as piezoelectric ceramics or polymers.
Electronics Module
The electronics module is responsible for generating the electrical signals that drive the transducer, processing the reflected signals, and calculating the distance to the surface of the material. It also provides the interface for connecting the level meter to other devices, such as controllers or displays.
Display
Some ultrasonic level meters are equipped with displays that show the measured level, distance, or other parameters. Displays can be digital or analog.
Output Interface
Ultrasonic level meters can be equipped with various output interfaces, such as 4-20 mA, Modbus, HART, or Ethernet. These interfaces allow the level meter to communicate with other devices, such as controllers, recorders, or alarms.
Sound Wave Emission: The ultrasonic transducer (probe) emits high - frequency sound wave pulses (usually with a frequency of 20kHz - 200kHz) towards the surface of the measured medium.
Signal Reflection and Reception: After the sound wave encounters the liquid surface or the surface of solid materials, it is reflected back to the probe and converted into an electrical signal.
Data Processing: The microprocessor accurately calculates the time difference between the emission and reception of the sound wave. Combined with the speed of sound (dynamically compensated by the built - in temperature sensor), the distance from the probe to the medium is calculated according to the formula S = C×T/2, and finally converted into the liquid level height.
Main technical indicators of ultrasonic level gauge
Range and blind area
Range and blind area are two important indicators of ultrasonic level gauge.
The range represents the maximum range that the level meter can measure and reflects the sensitivity of the transducer. In other words, the larger the range, the higher the sensitivity. Most manufacturers' nominal ranges are for flat liquid surfaces, but in actual measurement, liquid level fluctuations, floating objects on the surface, measured solid material levels, dust, and steam, all of which may cause the range to fail to reach the nominal value.
Blind area is also called dead area, a distance that the ultrasonic level gauge cannot measure, which is caused by the aftershock of the ultrasonic transducer. For example, the blind area is 30cm, that is, when the distance between the liquid surface and the probe is less than 30cm, there will be a situation where the measurement cannot be made. Then for products with the same range, the smaller the blind area, the better the design of the transducer; for some closed tanks or short-range measurements, the more convenient the installation will be.
Temperature and accuracy
Most of the temperature range is -20~60℃. Because most of the ultrasonic level gauge with liquid crystal display, the working temperature of the liquid crystal screen can only be in this range, beyond the range, the liquid crystal display will appear abnormal phenomenon. If you do not take into account the limitations of the liquid crystal display, generally can do -40 ~ 80 ℃ range. In general, the operating temperature of the ultrasonic transducer is difficult to exceed 150 ℃: when more than 150 ℃, easy to damage the piezoelectric ceramics inside, so 150 ℃ can be regarded as an absolute destruction temperature. In addition, some of the materials used in the manufacturing process of ultrasonic transducers can not work for a long time at temperatures above 100 ℃: therefore, the limiting temperature of most transducers is 100 ℃.
Pressure
In the case of negative pressure, ultrasound measurement is generally not recommended, because ultrasound propagation is realized through the gas. Negative pressure means that the air inside the thin air, ultrasound propagation in thin air, one is the speed of sound will change, resulting in measurement errors, and secondly, thin air, sound wave attenuation increases, resulting in reduced measurement range or even can not be measured.
Corrosivity
The corrosivity of the level meter is mainly tested by the material of the probe. In the weak acid and alkali environment, ordinary plastic shell can be. Teflon shell, can be resistant to most of the strong acids and alkalis. It is worth noting that, if the measured material has a strong corrosive and volatile, with a one-piece ultrasonic level meter, it is best to the circuit board for the rubber peak. subsnce Because most of the shell can be waterproof, can not prevent gas; gas but into the device inside, will corrode the circuit board.
Key Points for Selection and Installation
Selection Guide
The measurement blind zone should be lower than the lowest liquid level (the regular blind zone is 0.1 - 0.5m).
In high - temperature environments, the split - type structure is preferred to separate the probe from the signal processing unit.
Installation Specifications
The probe must be perpendicular to the liquid surface to avoid signal interference from obstacles in the tank (such as ladders and heating pipes).
For outdoor installation, a rain - proof bracket should be configured. The probe should be at least 40cm away from the liquid surface to avoid the blind zone.
For closed containers, a suitable flange opening (DN65 or above) should be reserved to ensure effective sound wave propagation.
FAQ
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ultrasonic level gauge