Sludge level sensor is also called sludge level transmitter, sludge level detector, Online sludge interface instrument, or sludge blanket level detector. A sludge level sensor is an instrument used to measure the thickness of the mud layer in the liquid.
The sludge level can be expressed as the distance from the water surface (sludge level depth) or the distance from the bottom of the tank (sludge level height). Sludge level sensor is mostly used in the industrial process of solid-liquid separation. Continuously monitor the mud-water interface of sedimentation tanks or special thickening tanks. A sludge level sensor is an instrument commonly used in the sewage treatment industry (wastewater treatment plant) to monitor the sludge level/sludge bed level in the sedimentation tank or thickening tank.

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• Description
• Features
• Data
• Applications

What is a Sludge level sensor?

Sludge level sensor is an online water quality monitor with a microprocessor. The mud-water interface meter is an industrial online monitoring instrument designed to measure the treatment process of municipal sewage and industrial wastewater.

With the rapid economic development, industrial, agricultural and domestic water use is growing rapidly. More and more sewage is produced, and the problem has become increasingly serious. Therefore, to do a good job in sewage treatment can we ensure the recycling of water resources. In many industrial processes, suspended solids and liquids are separated by sedimentation. This process is usually completed in a sedimentation tank or a special thickening tank. And it is practical, and the mud-water interface must be continuously monitored.

A sludge level sensor is an instrument used to measure the accumulated thickness of sludge at the bottom of the sedimentation tank. It can enable the staff to clearly grasp the amount of sludge at the bottom of the tank at any time. The sludge discharge operation can be carried out in a timely and effective manner.

Ultrasonic Sludge level sensor is designed for long-term reliable operation in industrial and municipal fields. The sensor can work when it is immersed in water 5-10cm. The height of the sludge layer can be determined by ultrasonic emission and echo analysis of suspended solids in the water.

Using ultrasonic to accurately measure the height and thickness of the sludge layer. Effectively grasp the sludge sedimentation characteristics and control the return flow of the sludge. Let the operator make timely evaluations for optimizing the sludge circulation, compensating for the daily fluctuations of wastewater, correcting abnormal state values, and monitoring the separation layer in the pre-concentration tank. It also has a longitudinal profile graph that continuously displays the height of the sludge interface. It is helpful to understand the sludge settlement situation.

Extended reading: ultrasonic sludge level meter

Features of Ultrasonic Sludge level sensor

• Fully intelligent, multi-function, high measurement performance, strong environmental adaptability;
• Simultaneous display of multiple parameters, height, output current, time, relay status;
• Dual 4-20mA transmission output, relay high and low alarm control output, RS485 communication output
• Various variable output;
• RS485 upload function;
• Various installation methods such as plug-in type;
• The cleaning and maintenance are very simple, and the calibration is performed once every three months;
• A two-point calibration method is adopted to ensure measurement accuracy;
• Chinese and English menus are optional;
• Self-set password: The user can set or modify the password to avoid misoperation caused by unrelated personnel entering;

Specifications of Ultrasonic Sludge level sensor

1. Measuring range: 0.4~10 meters; 0.4-25 meters; or expand according to requirements;

2. Display mode: LCD

3. Unit of measurement: meter

4. Resolution: 0.01m

5. Accuracy: ±0.5 %FS

6. Repeatability: ±0.5%

7. Work rate: ≤3W

8. Ambient temperature: -20~50℃; relative humidity: not more than 90%

9. Analog output: two 4~20mA, load 750Ω

10. Switch output: three-way relay, capacity 250VAC/5A

11. Power supply: AC85~265V±10% or 9~36VDC

Application fields of Sludge level sensor

Sludge level sensor has strong practicability and convenient operation. It is an investment-efficient system for water and sewage treatment plants. Consistent sludge level monitoring data can directly improve the quality of the effluent. It can be widely used in sedimentation tanks of water plants and ore washing plants. Power mortar sedimentation tank. Primary sedimentation tank and secondary sedimentation tank of sewage treatment plant. Sludge interface monitoring fields such as thickening tanks and mortar sedimentation tanks in the power industry.

Read more about: Top 5 Ultrasonic Level Sensor Applications

Sludge level sensor Applications

First settling tank, second settling tank, gravity sedimentation tank;
Oil/asphalt separation tank;
Pulp pool
Waste treatment clarifier;
Beverage water clarification tank;
Mining clarifier;
Brine tank
Mud tank
Any container with a liquid/solid interface.

Extended reading: Case Study: Automatic Sludge Blanket Level Detector

Industry development prospects of Sludge level sensor

With the increasing development of domestic water environment management in recent years. The application range of the sludge interface instrument is still expanding. Under the strong attack of market opportunities, the Sludge level sensor market has ushered in another wave of development.

It is understood that the current monitoring of the mud level of sewage plants on the market mainly relies on manual labor. In addition to traditional visual inspection and water sample collection, there are also sludge interface meters or sludge concentration meters. But still, need a handheld instrument to collect and measure. These monitoring methods either require high manpower. Need real-time participation and poor timeliness. Either the monitoring has blind spots and the accuracy is not high. And it requires 24 hours of manual monitoring in the central control room.

In conclusion, in today’s development of the Internet of Things, machines are used to replace humans to achieve real-time and accurate monitoring. It not only brings great convenience to the development of environmental protection work. It also gives entrepreneurs the opportunity to enter the market. In the future, it is believed that with Sludge level sensor, fast, energy-saving, pollution-free, high selection, and other characteristics, it will serve more fields.

Extended reading: Capacitive water level sensor

Sludge blanket level detector working principle

Ultrasonic mud-water interface measurement uses an ultrasonic sensor installed in the water to emit an ultrasonic pulse to the surface of the mud underwater. This pulse signal is reflected back after encountering the muddy water surface. Can be received by the sensor again.

From the ultrasonic transmission to the re-reception. The time is proportional to the distance from the sensor to the surface of the object being measured.

The meter detects this time. And according to the current temperature (measured by the sensor) underwater sound speed. Calculate the distance from the surface of the measured object to the sensor (that is, the spatial distance). Further, convert the level value.

The empty underwater distance W on the surface of the liquid level is proportional to the travel time T of the sound wave: W=V×T/2 (where V is the speed of the sound wave in water).

The user sets the height H from the probe to the bottom of the pool. The instrument automatically converts the pulse travel time T into the corresponding space distance value W. Then calculate the difference of H minus W is the measured value L.

FAQ

More Wastewater treatment solutions

Sino-Inst offers over 10 Ultrasonic Sludge level sensors and transmitters for level measurement. 40% for wastewater treatment, 10% for Mud tank, others for more liquid/solid interface.

A wide variety of Ultrasonic Sludge level sensors and transmitters options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of Ultrasonic Sludge level sensors and transmitters instrumentation, located in China.

Request a Quote

KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.

Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.

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The oil level sensor is very important for monitoring the level of the oil tank/fuel tank. Ultrasonic Oil Level Sensor is mainly used for monitoring the level of truck oil tank. Oil level displays and transmit.

Ultrasonic oil level sensor uses the principle of ultrasonic detection to detect the fuel level of the fuel tank. The fuel volume data is transmitted to the background monitoring system to achieve real-time monitoring of vehicle fuel consumption. Ultrasonic oil level sensor is mainly used in the field of Internet of Vehicles to monitor the change of fuel level in the fuel tank in real-time to achieve fuel level detection. It can be used to prevent fuel stealing, optimize operating costs, optimize driver driving behavior, and assist statistical decision-making. At the same time, this product can also be used in chemical, water conservancy, storage tanks, and other fields that require level detection.

Features of Ultrasonic Oil Level Sensor

1. Non-contact measurement. No need to change the shape of the container. No need to polish the surface paint of the container. No need to punch.
2. Easy to install and maintain. Just install the sensor probe below the outside of the fuel tank. No need to change the original fuel tank measurement system. No need to make holes and changes to the fuel tank. And can guarantee the normal operation of the original automobile fuel gauge.
3. Prevent the fuel level sensor from being corroded and polluted by the fuel, and can maintain long-term measurement stability;
4. Metal shell, internal circuit potting treatment, rainproof design, no pressure on outdoor environment.
5. The external waterproof 3M glue is equipped with a special metal fixing bracket, which is simple to install and firmly fixed.
6. Wide voltage operation, DC 12～48V power supply, suitable for various vehicles.
7. RS232/RS485/0～5V voltage analog quantity/TTL-UART multiple output interfaces, compatible with various sensor signal acquisition equipment connections.
8. High frequency ultrasonic detection, high solid penetration, suitable for containers made of various materials such as metal and plastic.
9. Strong reliability. It can work normally in harsh environments, moisture-proof, acid-proof, flame-retardant, anti-interference, and intelligent.
10. The product can be used alone, using the auxiliary display to directly view the data. It can also be used in conjunction with a GPS device to transmit data to the background through the GPS device. Perform data statistics, report analysis and query.

Specifications of Ultrasonic Oil Level Sensor

Remarks:

Ⅰ. Normal temperature and humidity. 1 standard atmosphere. The measured liquid is 0# diesel. For testing other liquids, please specify when ordering.

Ⅱ. The sensor can satisfy 2cm thickness container. 5 meters range requirement. Changes in the measurement range must be notified in advance. Default 5cm~1.

Ⅲ. The sensor RS232/RS485 default automatic output mode, compatible with MODBUS controlled and capacitive stick mode.

Extended reading: Guide to Ultrasonic Level Transmitters

Comparison of Ultrasonic Oil Level Sensor with other Oil Level Sensors

1. Capacitive type: easy to be affected by oil pollution and cause errors. Can not produce electric sparks. Hole installation.
2. Resistive type: mechanical measurement. Large error, hysteresis, long-term contact with the sensor. It is easy to be corroded and polluted, which affects the measurement accuracy. The fuel tank must be punched during installation.
3. Flowmeter type: the oil pipe needs to be cut off, and the fuel filling amount cannot be measured. Only the used amount can be measured. It is not convenient for measurement management.
4. Reed tube type: measurement output accuracy is low. It is greatly affected by the temperature of the measurement medium and the fluctuation of the power supply voltage. The components are easy to be magnetized. The measurement data is greatly affected by the fluctuation of the oil level and the oil pollution, and cannot be installed and manufactured according to the height of the fuel tank.
5. Float type: can only be used for the fuzzy indication of the liquid level. It cannot be used for the measurement of the liquid level, the degree of fuel contamination of the film resistor, the power supply voltage, the mechanical structure, the lubricity and other product reasons, and the long-term stability of the output value Greater impact.
6. Ultrasonic: Use non-contact ultrasonic technology to measure. High measurement accuracy, free from corrosion and pollution, explosion-proof, convenient installation, high stability and wide application.

Explore Oil and Gas Flow Meters

How does an oil level sensor work?

Ultrasonic externally attached oil level sensor uses the principle of ultrasonic echo ranging. The sensor is installed outside the bottom of the fuel tank and sends out an ultrasonic signal from the bottom, which is reflected by the oil surface, and then calculates the height of the liquid level according to time and speed.

At the same time, combined with digital signal processing technology, it overcomes the influence of the container wall and realizes high-precision non-contact measurement of the liquid level in the container, which can meet the requirements of industrial applications in terms of application.

Extended reading: Types of Fuel-Diesel Level Sensors

Ultrasonic Oil Level Sensor Application

The ultrasonic fuel level sensor can be used for various vehicles. Such as logistics vehicles, taxis, buses, passenger vehicles, etc.. It is used to digitally record vehicle fueling and fuel consumption. Prevent fuel theft. Avoid waste of resources. Improve operating efficiency, And improve traffic safety. Strengthen the level of operation and management.

1. Prevent oil theft: The system can easily read the actual oil volume through the oil volume display screen or the background monitoring terminal. It can effectively control the behavior of stealing oil and falsely issuing fuel bills.
2. Optimizing operating costs: Through the collection and analysis of statistical monitoring data, the oil volume and mileage at any time can be counted, and the oil volume per kilometer and the fuel cost per kilometer can be calculated. This allows the managers to analyze the economic and fast transportation routes.
3. Optimize driver’s driving behavior: Real-time monitoring of fuel quantity data can effectively improve the driver’s driving habits and reduce normal fuel consumption.
4. Strengthen operation management: effective oil quantity data analysis and statistics. Provide scientific decision-making basis for enterprises. Change unreasonable quota oil quantity management indicators based on experience and intuition. Through the statistical analysis of oil quantity, the unreasonable quota oil quantity index can be quickly reduced to a reasonable level. It can save the enterprise’s high oil quantity quota expenditure.

Extended reading: Oil Level Measurement Solutions for the Oil & Gas Industry

https://www.drurylandetheatre.com/wp-content/uploads/2020/11/Externally-attached-ultrasonic-oil-level-sensor.mp4

Extended reading: Diesel fuel tank level gauges & indicators

Ultrasonic Oil Level Sensor Installation Steps

Step 1. Choose the installation location

① When selecting the installation area at the bottom of the fuel tank, try to avoid the oil outlet pipes at both ends of the fuel tank and the barrier position near the oil inlet, and try to choose the ideal installation area at the middle position.

②Clean up the dirt at the installation location with a rag at the selected location. Please do not polish the paint layer at the bottom of the fuel tank before confirming the installation point, so as to avoid the wrong location and waste installation man-hours.

Step 2. Test and confirm the installation point

①Spread the prepared clean water on the sensing area of the probe, and add as much water as possible to ensure that the air on the contact surface between the sensor and the fuel tank is removed, and then the sensor is fixed to the fuel tank to select the installation position.

②Connect the waterproof head of the display board and the waterproof head of the oil level sensor, insert the USB plug of the display board into the pre-prepared mobile power supply, and observe whether the data on the display board is stable to determine whether the selected point is correct.

Step 3. Fix the ultrasonic oil level sensor

① Polish the selected installation point with sandpaper to remove the paint layer to ensure that the installation surface is flat, and clean it again with a rag to ensure that no dirt enters the sensor before installation.

②Use a glue gun to hit the glue into the sensor’s sensing area, and use a toothpick to mix the glue evenly, and then fit it to the fuel tank installation position. The glue will initially solidify in 4-5 minutes at room temperature, and then prepare the wiring.

ultrasonic tank level sensor

Ultrasonic tank level sensor is also often referred to as “ultrasonic water level sensor”, “ultrasonic level detector” or “ultrasonic level transmitter”, etc.

Ultrasonic tank level sensor uses ultrasonic pulse echo to achieve liquid level measurement. Specifically, the transducer (probe) of the ultrasonic tank level sensor emits high-frequency ultrasonic pulses. When it encounters the surface of the liquid level to be measured, the sound waves are reflected Back. Part of the reflected echo is received by a transducer (probe) and converted into an electrical signal.

The user can almost truly know the time of the water level based on the reflected signal. The ultrasonic tank level sensor is one of the most common non-contact liquid level measurement instruments in the industry.

Ultrasonic tank level sensor can be widely used in various atmospheric storage tanks, process tanks, small tanks and small containers, pump lifting stations, waste water storage tanks, etc.;

Due to the flexibility of its design, ultrasonic level gauges can also be used in integrated systems or in place of float switches, conductivity switches and static pressure sensors. It can also be found in integrated applications in fluid control and chemical supply systems.

Extended reading: Capacitance level sensor advantages and disadvantages

Related Products

Frequently
Asked
Questions

Contact Us

What is ultrasonic liquid level sensor?

Ultrasonic liquid level sensor is a digital liquid level meter controlled by microprocessor.

In the measurement, ultrasonic pulses are emitted by a sensor (transducer). The sound wave is reflected by the liquid surface and received by the same sensor. It is converted into an electrical signal by a piezoelectric crystal. Measure the distance to the surface of the liquid.

Due to the non-contact measurement, the measured medium is almost unlimited, and it can be widely used in the measurement of the height of various liquid materials.

How does a oil level sensor work?

In fact, there are many types of oil level sensors. Different types of oil level sensors work differently.

For example, the External PasteUltrasonic Oil Level Sensor mentioned in this article is based on ultrasonic measurement.

There is also a common capacitive oil level sensor. The sensing part of the capacitive oil level sensor is a coaxial container. When the oil enters the container, it causes a change in the capacitance between the sensor housing and the sensing electrode. This variation is converted through the circuit and performs accurate linear and temperature compensation, and outputs a 4-20mA standard signal for the display instrument.

For other types of oil level sensors, please refer to:

Oil Level Measurement Solutions for the Oil & Gas Industry

Is the oil level sensor important?

Of course. The oil level sensor is very important. Whether it is for automobiles or industrial tanks.

Accurate measurement and monitoring of oil level can effectively save production costs and ensure production efficiency.

Read More:

Magnetostrictive Level Gauge Application: Refined Oil Storage Tank

How does an ultrasonic oil level sensor work?

The working principle of the ultrasonic liquid level sensor is:

Ultrasonic transducer (probe) emits high-frequency pulse sound waves, and the surface of the measured level (material) is reflected back. The reflected echo is received by the transducer and converted into an electrical signal. The propagation time of the sound wave is proportional to the distance from the sound wave to the surface of the object.

The relationship between the sound wave transmission distance S and the sound speed C and the sound transmission time T can be expressed by the formula: S=C×T/2.

The probe part emits ultrasonic waves, which are then reflected by the liquid surface. The probe part is received again. The distance from the probe to the liquid (object) surface is proportional to the elapsed time of the ultrasonic wave:
hb = CT2
Distance [m] = time × speed of sound/2 [m]
The temperature compensation formula of sound velocity:
Ambient sound velocity = 331.5 + 0.6 × temperature

Read more about: How to Choose Explosion Proof Ultrasonic Level Sensor?

How accurate are ultrasonic level sensors?

Currently, most ultrasonic level sensors on the market have an accuracy of ± 0.5% (standard conditions).

It can already meet the needs of most users.

How does oil tank level sensor work?

Different types of oil tank level sensors work based on different measurement principles. Oil tank level sensors measure tank oil level either directly or indirectly.

For detailed classification and working principle of oil tank level sensors, please refer to:

Classification of Oil Level Measurement

Related Blogs

Sino-Inst offers over 10 Ultrasonic Tank Level Sensors for level measurement. About 50% of these are fuel level meters, 40% is the tank level sensor.

A wide variety of Ultrasonic Tank Level Sensor for level measurement options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of Ultrasonic Tank Level measurement instrumentation, located in China.

Request a Quote

KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.

Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.

drurylandetheatre.com

Water Depth Gauge is a portable water depth detector based on the principle of ultrasound. Ideal water depth measuring instrument for ships, oceans, reservoirs, lakes, rivers, and shallow water level monitoring.

Water Depth Gauge is a necessary instrument to measure water depth in reservoir, lake, river, shallow sear. Place ultrasonic transducer on water surface or into a certain position into water. The device can caculate current water depth. HS-SFCC Portable Ultrasonic Water Depth Gauge It has perfect water depth measurement function. Control function, data transmission function and man-machine communication function. This machine integrates ultrasonic transceiver sensor, servo circuit, temperature compensation sensor and compensation circuit unit, display, control signal output and serial data or analog output unit (optional) as a water depth measuring instrument. It has the characteristics of low maintenance, high reliability, long life, convenient use, simple operation and accurate measurement. Therefore, it is widely used in water area monitoring.

Features of HS-SFCC Portable Ultrasonic Water Depth Gauge

• Less maitenance,
• Long lifespan,
• Simple operation,
• Correct measurement result, high reliability and precision;
• Widely used in hydrographic surveying, hydropower plant, reservoir, shallow sea, lake, river surveying, water environment monitoring, etc.

Read more about: The Difference Between Ultrasonic Depth Sensor And Ultrasonic Level Sensor

Specifications of HS-SFCC Portable Ultrasonic Water Depth Gauge

Basic parameters

Meter parameters

Sensor parameters

All parts are welled packed in aluminum alloy portable protective case with sponge inside. 

Extended reading: Typical Applications of Handheld Ultrasonic Flow Meter

Water Depth Gauge for Boat

1.The HS-SFCC Portable Ultrasonic Water Depth Gauge is handheld and portable. There are also hooks on the back to fix it. When in use, screw the sensor connecting rod to the sensor. Then securely connect the connecting rod. The protection requirements of cables should be considered during installation.

It is recommended to pass the cable through the connecting rod of the configuration first. Then screw the connecting rod onto the sensor head. The sensor thread size is 1 inch. In order to avoid the cable being stressed, the cable will be broken and the sensor will be permanently damaged.

2. Ultrasonic water depth sensor can only work in water, not in air. The meter will display “nor”. In order to prevent the influence of water surface waves on the test, it is recommended that the sensor is immersed no less than 0.5m below the water surface.

3. When working in sea water, you need to enter the N value or salinity value in the P1 menu.

4. The ultrasonic sensor and the meter circuit are matched and cannot be interchanged. And the sensor cable cannot be lengthened or shortened by itself.

5.The transmit power cannot be set too large or too small, otherwise it will not work normally.

6. The ultrasonic bathymeter has blind spots. The value displayed within the blind zone is a random value.

7. The ultrasonic bathymetry sensor has a corresponding beam angle. When using it, please note that there must be a sufficiently large reflecting surface, and there must be no obstructions around the beam angle range.

8. Because the sensitivity of this instrument is very high. Therefore, there should not be too strong noise or electromagnetic interference near the instrument during use. If the water flow is large, the temperature and humidity are not within the specified range.

Extended reading: Capacitive water level sensor

Featured Level Sensors

Read more about: Common River Water Level Measurement Methods

Sino-Inst offers over 10 Water Depth Gauges for level measurement. About 50% of these are river level meters, 40% is the tank level sensor.

A wide variety of Water Depth Gauges for level measurement options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of Water Depth Gauge instrumentation, located in China.

KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.

Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.

drurylandetheatre.com

Liquid Level Controller monitors the liquid level of tanks and sends out control signals. Upgraded liquid level switch. Upper and lower level alarm. Tank temperature display or monitor whether there is liquid in the pipeline.

Liquid Level Controller is an ideal ultrasonic Non-contact Liquid Level switch. The sensor is attached to the tank body. No need to open holes in the tank. Liquid Level Controller is suitable for liquid level process control in the pharmaceutical, petroleum, chemical, electric power and other industries. For the monitoring of toxic, highly corrosive and dangerous liquids.

Features of Ultrasonic Non-contact Liquid Level Controller

• Advanced signal processing methods. Can overcome the influence of temperature drift.
• Stronger anti-interference
• Brand new installation method. Adsorption type + adhesive type. Can improve the stability of the probe.
• Built-in temperature sensor. Monitor temperature changes for 24 hours. Temperature compensation is also possible.
• Adopt a new single probe mode. Installation is more convenient. Avoid repeated verification.
• A new handheld operator can be used to debug the instrument. The probe status can be detected to ensure reliable installation of the probe. It can support on-site upgrade of digital probe software. The historical data of the secondary meter can be read wirelessly.

Specifications of HS-ULC-Pro Liquid Level Controller

Liquid Level Controller can also be used with paperless recorder.

Liquid Level Controller Working Principle

The sensor of the High-Pro type liquid level controller couples the generated high-frequency ultrasonic pulse to the vessel wall through a couplant.

The pulse propagates in the wall of the container and in the liquid. It will also be reflected by the inner surface of the container. By detecting and calculating the characteristics of the reflected signal.

The measured data is transmitted to the on-site secondary meter through the 485 serial port in real time. It can be judged whether the liquid level reaches the position where the controller is installed.

Extended Reading: Procurement Guide for Ultrasonic liquid level sensors

Of course, the above is the working principle of this product HS-ULC-Pro Ultrasonic Non-contact liquid level controller.

There are other types of liquid level controllers on the market. The liquid level switch controller is a pressure sensor that measures liquid level. It is divided into contact type and non-contact type. We make a simple introduction to the measurement principle:

Pneumatic liquid level controller

The pneumatic liquid level controller is used in conjunction with the control valve. Level control in oil and gas production.
Pneumatic level controllers are usually used to produce tanks, separators, etc.

The working principle of the pneumatic level controller:

In a pressurized container, you can use a pipe to draw the controller out of the container or air compressor to supply air. The liquid level controller uses a displacer connected to the controller to sense the liquid level. The displacer is located in the process fluid inside the separator.

When the liquid level increases and the displacer reaches the high set point, the liquid level controller sends a pneumatic signal to open the control valve.

When the liquid level drops and the displacer reaches a lower set point, the liquid level controller will eliminate the pneumatic signal to the valve and switch to exhaust. This allows the gas inside the valve actuator to be discharged through the level controller, thereby closing the valve.

This can be used with low pressure or high pressure pneumatic control valves.

Electronic liquid level controller

The working voltage of the electronic liquid level switch is DC5V-24V.
The water level is detected by the built-in electronic probe.
Then the chip processes the detected signals.

When the liquid level of the tested liquid reaches the action point, the output is DC5V-24V.

It can be directly used in conjunction with PLC or in conjunction with the control board to realize the control of the liquid level.

Extended reading: Radar Non Contact Water Level Sensor

Displacer level controller

The Displacer level controller changes the magnetic float to a float. Displacer level transmitter uses tiny metal film strain sensing technology to measure liquid level, interface or density.

Such as Fisher DLC3010 Digital Level Controller

Floating type liquid level controller

The float type liquid level controller is composed of a magnetic float, a measuring tube, a signal unit, an electronic unit, a junction box and installation parts. Generally, the specific gravity of the magnetic float is less than 0.5, which can float on the liquid surface and move up and down along the measuring tube.

A measuring element is installed in the catheter. It can convert the measured liquid level signal into a resistance signal proportional to the change of liquid level under the action of external magnetism. And convert the electronic unit into 4-20ma or other standard signal output.

Hydrostatic liquid level controller

The hydrostatic level controller works by using the measuring principle of hydrostatic pressure.
Generally, a silicon pressure sensor is used to convert the measured pressure into an electrical signal. Then it is amplified by the amplifier circuit and compensated by the compensation circuit. Finally, it is output in 4-20ma or 0-10ma current mode.

Liquid level control system for oil and gas

Through node sensors such as wireless temperature sensor + thermometer, wireless pressure sensor + pressure gauge and wireless liquid level sensor + liquid level gauge, the temperature, liquid level, pressure and other parameters of the storage tank are collected.

Upload to the wireless data collection gateway via 2.4G, 433MHZ wireless.

The gateway processes the data received from the wireless sensor node.

Provide data to the XL.VIEW server through the RS485 serial port, so as to monitor the production status of the storage tank and handle the limit alarm.

When the temperature, pressure, and liquid level of the storage tank are abnormal, the intelligent measurement and control device automatically drives the sound and light alarm to remind the staff.

Solution for real-time remote monitoring of liquid level, pressure and temperature of natural gas and oil storage tanks:

Application equipment:

1. Wireless temperature sensor
2. Wireless pressure sensor
3. Wireless liquid level sensor
4. Wireless data collection gateway
5. Intelligent measurement and control terminal
6. Server

Ultrasonic technology is not only used to measure level, but also can be used to measure depth. Get more.

Application field

The storage tank remote monitoring system is suitable for real-time monitoring of the safety of the storage tanks of various chemicals such as gasoline, solvent oil, isooctane, mixed aromatics, isobutane, liquefied petroleum gas, natural gas, etc.

You may like:

Liquid level controller price

Sino-Inst offers over 10 Ultrasonic Liquid Level Controllers for level measurement. About 50% of these are fuel level meters, 40% is the tank level sensor.

A wide variety of Ultrasonic Liquid Level Controllers for level measurement options are available to you, such as free samples, paid samples.

HS-ULC-Pro Ultrasonic Non-contact Liquid Level Controller reference price: USD 1500.00. The exact price depends on your measurement parameters.

Extended reading: Ultrasonic liquid level sensors

Sino-Inst is a globally recognized supplier and manufacturer of Ultrasonic Tank Level measurement instrumentation, located in China.

KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.

Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.

drurylandetheatre.com

Ultrasonic Level Switch, External Mounted (referred to as “external level switch”) is a new type of level measurement alarm device.

Ultrasonic Level Switch is mainly used to detect the liquid level of the storage tank. It can realize the upper and lower limit alarm or monitor whether there is liquid in the pipeline (dry protection). The material of the storage tank can be various metals, non-metals or non-foamed plastics. The wall thickness can be Up to 70mm.

Ultrasonic level switch is installed outside the tank. No need to open holes in the tank. Non-Contact Measure. The ideal choice for tank level monitoring.

Features of HS-ULC Ultrasonic Level Switch

1. Wide range of applications. It can be used to measure various liquid media in highly toxic, corrosive, high-pressure, various complex working conditions, and explosive gas environments.
2. The installation can be without stopping production, unclearing the tank, and keeping the fire. The installation is convenient and the operation is simple.
3. The instrument works reliably and has stable performance. Strong anti-interference ability.
4. The meter does not require user maintenance, maintenance-free. Long service life.

Specifications of HS-ULC Ultrasonic Level Switch

Extended reading: The Secret of Ultrasonic Level Measurement

Ultrasonic Level Switch Working Principle

The sensor of the external liquid level switch couples the generated high-frequency ultrasonic pulse to the container wall through the couplant.

The pulse will propagate in the container wall and liquid, and will be reflected by the inner surface of the container.
By detecting and calculating the characteristics of the reflected signal, it can be judged whether the liquid level has reached the position where the controller is installed.

The liquid level controller can output a relay signal to facilitate the detection and control of the liquid level.

Ultrasonic technology is not only used to measure level, but also can be used to measure depth.

Ultrasonic Liquid Level Switch Applications

Ultrasonic Level Switch is not affected by factors such as medium density, dielectric constant, conductivity, reflection coefficient, pressure, temperature, precipitation, etc. It is suitable for various liquid levels in the pharmaceutical, petroleum, chemical, electric power, food and other industries Engineering control. Ultrasonic Level Switch is the ideal choice for the detection of toxic, highly corrosive, and dangerous liquid level.

Applied Industries

• Petrochemical industry
• Chemical industry
• Foodstuffs
• Pharmaceutical industry
• Marine industry
• Oil refining industry
• Refrigeration industry

Applied Medium

HS-ULC Ultrasonic Level Switch is specially used to measure the liquid level of tanks. Because it is installed on the outside of the tank, there is no need to punch holes, which is widely welcomed by customers.

Of course, if your tank already has holes, you can also choose other tank level transmitters.

Such as Liquid level float switch. Liquid level float switch is a commonly used liquid level controller. For water Tank & Pump alarm and level control. Can be divided into Continuous Float Level Sensor and Point Level Float Switch.

The ultrasonic principle can also be used to measure water depth. Please refer to Portable Ultrasonic Water Depth Gauge for water depth measurement.

Ultrasonic Level Sensor Working Principle

The working principle of the ultrasonic level senor: The high-frequency pulse sound wave emitted by the ultrasonic transducer is reflected on the surface of the measured level, and the reflected echo is received by the transducer and converted into an electrical signal. The propagation time of the sound wave is proportional to the distance from the sound wave to the surface of the object. The relationship between sound wave transmission distance S and sound speed C and sound transmission time T can be expressed by the formula: S=C×T/2.

Featured ultrasonic level sensors for tanks

Among various liquid storage tanks, ultrasonic level gauges are the most commonly used level gauges.
For open tanks, ultrasonic level sensors can be installed directly on the top of the tank.
For closed tanks, and an external ultrasonic sensor can be installed at the bottom.

Ultrasonic liquid level sensors use the propagation characteristics of waves in the medium. Ultrasonic transmitter and receiver can be installed at the bottom or top of the tank when measuring the tank liquid level. The emitted ultrasonic waves are reflected at the corresponding interface and received by the receiver. By measuring the time difference between the ultrasonic wave transmission and the reception, the liquid level can be measured.

Read more: Guide: Non-contact Ultrasonic Level Sensing transmitters

Float Level Sensors & Switches

The float level switch is a kind of level switch. The float level switch uses magnetic force to operate. No mechanical connections. The operation is simple and reliable. When the float switch floats the measured medium, the float moves the main body. At the same time, the magnet on the other end of the float will control the magnet on the switch action lever.

Sino-Inst offers over 10 Ultrasonic Level Switches for level measurement. About 50% of these are fuel level meters, 40% is tank level sensor.

A wide variety of Ultrasonic Level Switches for level measurement options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of Ultrasonic Tank Level measurement instrumentation, located in China.

KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.

Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.

drurylandetheatre.com

The HS-2000 External Ultrasonic Tank Level Sensor is a Non-invasive/non-contact device that accurately measures liquid levels in sealed tanks. To measure the liquid level in the tank by sticking an external sensor to the bottom of the tank. Its advanced technology and easy installation make it ideal for various liquids, including toxic or acidic ones.

RFQ

External ultrasonic tank level sensor

HS-2000 External Mounted Ultrasonic Tank Level Sensor- (referred to as “external level gauge”). It adopts advanced signal processing technology and a high-speed signal processing chip. It breaks through the influence of container wall thickness. Realizes the height of the liquid level in the closed container True non-contact measurement.

The ultrasonic liquid level sensor (probe) is installed directly under the outer wall (bottom) of the container under test. Calibrate the outer wall of the probe. There is no need to open holes for the container to be tested, easy to install, and does not affect production.

It can accurately measure the level of various toxic substances, strong acids, strong alkalis, and various pure liquids in high-pressure airtight containers.

The HS-2000 External Mounted Ultrasonic Tank Level Sensor has no special requirements for the material of the liquid medium and the container. The explosion-proof design is adopted to meet the explosion-proof requirements.

• Features
• Specifications
• Application

Features of HS-2000 Ultrasonic Tank Level Sensor

• Non-contact measurement function ——– Ultrasonic sensor probe is external. No need to open a hole in the container to be tested.
• Auto-calibration function——–With self-calibration function. It overcomes the problem of reduced accuracy after the long-term use of traditional liquid level gauges.
• Infrared online debugging function——–Applicable to occasions where it is not suitable to open the cover for testing in dangerous situations. At the same time, it reduces the difficulty of debugging.
• Self-diagnosis function——–It has its own working status diagnosis function. It also has a hardware diagnosis function. It enhances the reliability and stability of the level gauge.
• One-key recovery function——–When the external measuring level gauge works abnormally, it can be restored to the normal state with one key through the debugger.
• Local display and remote transmission function——–The level gauge can not only display the level value on the spot in time. But also remotely transmit it to the control room through the signal line.

Specifications of HS-2000 Ultrasonic Tank Level Sensor-External Mounted

Measuring range	3m, 5m, 10m, 20m, 30m
Display resolution	1mm
Short time repetition	1mm
Measurement error	±1‰FS (Excessive wall thickness and   temperature/pressure instability may affect measurement precision.)
Span shift	±10 m
Current output	4～20mA，Max   load 750Ω
Communication interface	RS-485,    IrDA
Operating ambient temperature for liquid level meter	-30℃～+70℃
Operating ambient temperature for ultrasonic probe	-50℃～+100℃ (Probes with a wider temperature range can be provided upon request）
Operating ambient humidity	15%～100%RH
Explosion proof mark	Ex d ⅡC T6 Gb
Housing ingress protection	IP 67
Volume percentage display	4-digit OLED display
Blind area	There is a small blind area for the   liquid level meter that should be noted

Mediums that Ultrasonic Tank Level Sensor can measure

Liquefied Gas	Liquid Ammonia	Dimethyl ether	Liquid Chlorine	Hydrochloric Acid
Propylene	Aqua Carbolisata	Lacquer Thinner	MTBE	Dimethylhydrazine
Nmethyl anilineju	Butadiene	Chlorethylene	Light Hydrocarbon	Bromine
Anhydrous Hydrogen Fluoride	Toluene	Methylamine	Gasoline	C3
Liquefied Carbon dioxide	Xylol	Carbon Dichloride	Epoxyethane	Acetone
Plant Oil	Ethanol	Freon	Diethyl Ether	Diesel
Ethylene	Sulfuric Acid	Methanol	Kerosene	Nitric Acid
And More……..

Ultrasonic Tank Level Sensor’s Application

• Petrochemical industry
• Chemical industry
• Foodstuffs
• Pharmaceutical industry
• Marine industry
• Oil refining industry
• Refrigeration industry

Extended reading: Fuel-Diesel-Water Tank Level Sensor Monitoring

Chemical industry.
Common medium: liquid ammonia,liquid chlorine, hydrochloric acid, bromine, 
chlorethylene,sulfuric acid, freon, and nitirc acid.

Coal chemical industry 
Common medium: freon,liquid ammonia, butadiene, H2S.

Petrochemical industry.
Common medium : liquefied gas, propylene, ethylene, butadiene, light hydrocarbon, C3. 

Power, food, pharmaceutical industries and so on.  

Extended reading: Radar Oil Tank Level Sensor

In addition to measuring tank level, we also provide Portable Ultrasonic Water Depth Gauge for water depth measurement.

External Ultrasonic Tank Level Sensor Working Principle

The External Ultrasonic Tank Level Sensor adopts the sonar echo ranging principle. It overcomes the influence of the tank wall on the transmission of ultrasonic signals. It adopts advanced digital signal processing technology. It can truly realize non-contact, high-precision measurement of the liquid level in the tank.

The External Ultrasonic Tank Level Sensor can output 4-20mA standard signals or output the measurement results to the upper computer (or secondary meter) through the RS-485 interface. It can meet the automatic control of the system.

Extended reading: The Secret of Ultrasonic Level Measurement

Application Requirement

1.Medium’s Purity Degree
Liquids should not contain dense foam
There should be minimal suspended objects in the liquid, such as crystallized particles, etc.
There should be minimal precipitation in the tank, such as mud, sand, etc.

2.Tank Material：Carbon steel, stainless steel. Various hard metals. Glass fiber-reinforced plastics. Epikote, rigid plastics, ceramics. Glass, ebonite. Other composite materials.

3.Tank Shape：Spherical, horizontal and vertical tanks are permitted.

If you need to measure river water level, open channel level, etc. The Ultrasonic Liquid Level Sensor can be used for non-contact continuous level monitoring.

Read more about: Top 5 Ultrasonic Level Sensor Applications

How to Choose an Ultrasonic Tank Level Sensor?

To choose a suitable Ultrasonic Tank Level Sensor, users need to understand their measurement conditions and needs.

• Are you measuring a liquid or bulk material?
• What is the size of the tank? What level measurement range do you need?
• Is the location classified as a Hazardous Location or Explosive Atmosphere?
• Point level or continuous measurement?
• Will the material coat or buildup on surfaces?
• Does turbulence, foam, or vapor occur at the surface of the liquid?
• What kind of output will you need?
• Installation location and installation size?

Extended reading: Guide to Ultrasonic Level Transmitters

Ultrasonic tank level bottom sensor

The ultrasonic sensor (probe) is installed at the bottom of the tank’s external surface without the need for drilled holes in the tank. This allows for quick, simple installation that does not interrupt the tank’s operation.

External Ultrasonic Tank Level Sensor Installation

1. Precautions for installation of Tank Level Sensor main body:

There are 4 holes on the base of the main body. It can be fixed in different positions by bolts. The user can decide according to the working site.

When the instrument host is installed, it is recommended to use the instrument protection box in areas with relatively low temperature to prevent the instrument temperature from being too low.

In areas with high temperature, the instrument should be installed in a cool place to avoid excessive temperature in the instrument caused by exposure.

The display screen of the main unit of the instrument cannot be exposed to sunlight for a long time.

2. Precautions for sensor installation:

For iron containers, you can apply silicone grease to the working surface of the sensor and use a magnetic suction cup to directly tightly attach it to the bottom of the container.

If the container shell is made of glass and other materials, the sensor can be pasted and fixed with glue or fixed to the bottom of the container with a bracket.

3. Installation requirements:

• The direction of the sensor must be perpendicular to the measured liquid level.
• There are no obstructions such as coils directly above the sensor;
• Keep away from the liquid inlet at the bottom of the tank to avoid the influence of the violent flow of the liquid on the measurement;
• Keep away from the position below the liquid inlet on the top of the tank. Avoid the impact of the liquid inlet and the violent fluctuation of the liquid level to affect the measurement;
• It is higher than the liquid outlet or the sewage outlet. To avoid the influence of long-term deposits on the bottom of the tank on the measurement. If the conditions are not met, measures should be taken to ensure that the bottom of the tank is regularly removed;
• When the liquid level sensor is installed by magnetic or welding/adhesive fixing method. The installation surface size on the container wall should not be less than the round surface of ∅80. The surface roughness should reach 1.7. The inclination should be less than 3° (except the bypass pipe).

4. Installation positions of sensors in different shapes

Horizontal tank: choose a position inside the tank bottom support and far away from the liquid inlet

Spherical tank:

For new tanks, if the manhole flange is not planned to be opened in recent years, and there is few liquid deposits, it is best to install it on the manhole flange. Because of the surface level, the signal is strongest.

When opening the inlet flange, remove the liquid level sensor first. After the inlet flange is installed and fixed, the liquid level sensor can be reinstalled.

If the deposits are not cleaned for a long time, a large amount of deposits may accumulate on the inner surface of the flange. In this case, the sensor installation position that can work stably for a long time is a circle around the manhole flange.

Here, the level is small, the sediment is small, and there is no rapid liquid flow interference. Although the signal for the new tank without sinking is not strong on the flange, it works stably for a long time.

Vertical tank:

Generally, choose the installation groove far from the liquid inlet and outlet (more than 90°).

5. Installation of the calibration sensor

For spherical tanks equipped with a calibrator. The calibration sensor is installed at the center of the calibrator on the outer wall of the tank.

If the calibrator is not installed, the calibration sensor should be installed at the height of the outer radius of the tank (equatorial zone).

The calibration sensors for the vertical tank and the process tank are installed on the outer side of the tank body, at a height of 0.5m to 1m from the tank bottom.

Note: After installing the calibration tube (calibrator) in the tank, the correct installation position should be marked with paint on the outside of the tank wall in time.

Extended reading: ultrasonic level sensor for diesel tank

Featured Tank Level Sensors

More Level Measurement Solutions

Sino-Inst offers over 10 Ultrasonic Tank Level Sensors for level measurement. About 50% of these are fuel level meters, 40% is the tank level sensor.

A wide variety of Ultrasonic Tank Level Sensor for level measurement options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of Ultrasonic Tank Level measurement instrumentation, located in China.

Request a Quote

KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.

Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.

drurylandetheatre.com

Ultrasonic Level Sensing sensors and transmitters are used for continuous, non-contact level measurement.

Ultrasonic Level Sensing is a low-cost liquid level measurement technology. Ultrasonic Level Sensing sensors and transmitters are used for tank or river level measurement. Ultrasonic Level Sensing does not need to contact the medium, can be continuously measured, low cost. Therefore, Ultrasonic Level Sensing is very popular among users. Ultrasonic liquid level sensors are available in general and intrinsically safe types. Output 4~20mA standard signal or output the measurement result to the secondary meter through RS-485. Meets the system’s automatic control.

Featured Non Contact Ultrasonic Level Sensing Devices

What is Ultrasonic Level Measurement?

Ultrasonic Level Sensing measures liquid levels based on the principle of ultrasound. When ultrasonic waves encounter a high-density medium while propagating in a low-density medium, they cannot penetrate the high-density medium. There will be reflections at the interface of the two media. The ultrasonic liquid level gauge is made using this feature.

In the measurement, the ultrasonic pulse is emitted by the sensor (transducer), and the sound wave is reflected by the liquid surface and then received by the same sensor or ultrasonic receiver. Through piezoelectric crystal or magnetostrictive device into electrical signals. The distance between the sensor and the measured liquid surface is calculated by the time between the transmission and reception of sound waves.

Due to the non-contact measurement, the measured medium is almost unlimited. It can be widely used to measure the height of various liquid and solid materials.
The ultrasonic liquid level transmitter is composed of three parts: ultrasonic transducer, processing unit and output unit.

Ultrasonic Level Sensor Working Principle

The working principle of the ultrasonic liquid level sensor is:

Ultrasonic transducer (probe) emits high-frequency pulse sound waves, and the surface of the measured level (material) is reflected back. The reflected echo is received by the transducer and converted into an electrical signal. The propagation time of the sound wave is proportional to the distance from the sound wave to the surface of the object.

The relationship between the sound wave transmission distance S and the sound speed C and the sound transmission time T can be expressed by the formula: S=C×T/2.

The probe part emits ultrasonic waves, which are then reflected by the liquid surface. The probe part is received again. The distance from the probe to the liquid (object) surface is proportional to the elapsed time of the ultrasonic wave:
hb = CT2
Distance [m] = time × speed of sound/2 [m]
The temperature compensation formula of sound velocity:
Ambient sound velocity = 331.5 + 0.6 × temperature

Ultrasonic Level Sensor Advantages and Disadvantages

The advantages of ultrasonic liquid level gauge are very outstanding. It is mainly reflected in the following aspects:

1. The structure is simple. The reading is convenient. It is very easy to install and maintain.
2. Safe and clean. The instrument has long service life. The measurement is stable and reliable with high precision.
3. Adopt non-contact measurement. It is not easily affected by the viscosity and density of the liquid.

More about: Top 5 Ultrasonic Level Sensor Applications

Of course, the ultrasonic liquid level gauge also has its own limitations and insurmountable defects. Specifically, it is mainly manifested in:

1. There is a blind spot in the ultrasonic liquid level measurement. The dead zone is the area where the meter cannot measure. During the transmission of ultrasonic pulses, a small area near the ultrasonic transducer usually cannot receive sound waves. The blind zone where sound waves cannot be received is related to the measurement distance of ultrasonic waves. Generally speaking, the smaller the measurement distance, the smaller the blind zone. The larger the measurement distance, the larger the blind zone;
2. Ultrasonic liquid level measurement is easily affected by temperature. In the actual measurement, the change of temperature will cause the change of sound speed. This will lead to errors in the measurement;
3. There should be no obstacles under the sound wave. Because the ultrasonic liquid level meter uses the principle of sound wave reflection to achieve liquid level measurement. If there are obstacles, it will affect the ultrasonic emission, causing signal loss and affecting the measurement effect;
4. Ultrasonic liquid level gauge should not be used to measure pressure vessels. Because the pressure mainly affects the probe. There is also a certain relationship between the pressure and the temperature. The change in pressure will affect the change in temperature. This will affect the change in the speed of sound. The accuracy of the measurement will be affected;
5. Ultrasonic liquid level gauge can not be used in the occasions with water mist, medium that is easy to produce a lot of foam, and volatile medium. Because this kind of working condition is easy to absorb the sound wave or interfere with the sound wave emission, the signal is lost and the accuracy is reduced;
6. Ultrasonic liquid level gauge is greatly affected by dust. This is because although the dust environment has little effect on the speed of sound, it has a very significant effect on the attenuation of sound waves. Therefore, it is best not to use an ultrasonic level gauge in the presence of dust.

FAQ

Sino-Inst offers over 10 Ultrasonic Level Sensing sensors and transmitters for level measurement. About 50% of these are float liquid level meters, 40% is the level switches.

A wide variety of Ultrasonic Level Sensing sensors and transmitters options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of Ultrasonic Level Sensing sensors and transmitters instrumentation, located in China.

Request a Quote

KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.

Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.

drurylandetheatre.com

Portable Ultrasonic Liquid Level Indicator allows you to conveniently detect the level of liquid available in a container /cylinder/pipe/tank. Ultrasonic principle, Non-contact.

Portable ultrasonic liquid level indicator is best choice for tanks or pipes level measurement. It is designed to measure the presence or absence of liquid at a certain height position in a tank or in pipelines. Non-contact ultrasonic detection technology. SI-ML works perfect for detection of dangerous toxic or corrosive liquids. Under ordinary conditions, the maximum wall thickness of measurable containers is 30mm. The product is suitable for the detection of various types of liquids. Liquids are non-crystalline or other particulate matter. For example CO2 Tank. Thanks to non-contact detection technology, this level indicator is ideal for detecting hazardous toxic or corrosive liquids.

Features of Portable Ultrasonic Liquid Level Indicator

SI-ML Portable Ultrasonic Liquid Level Indicator is mainly used for liquid level detection of various tanks and pipes.

Detect the storage capacity of fire extinguishing agent storage containers in gas fire extinguishing systems (eg, original Indo-European, haloalkane, CO2, etc.). Measure the presence of liquid level in a cylinder or container at a certain height position, such as haloalkane, CO2, etc. It can also indicate the presence of a liquid level in the container.

The material of the measurable container can be various metals, glass or non-foam. And the measurable wall thickness is usually not less than 30mm. This measurement technique is not affected by factors such as medium density, dielectric constant, electrical conductivity, reflection coefficient, pressure, temperature, sediment, and so on.

The product can be used to detect all liquids that do not crystallize and contain no particulate matter. Because it uses non-contact detection, it is ideal for fire detection of toxic and corrosive hazardous liquids and acceptance testing of gas fire suppression systems.

• No contact with medium
• Suitable for toxic, corrosive, orinvasive medium
• No need for drilling or welding on tank wall
• Advanced ultrasonic sensor technology
• Reliable measurement results
• Easy and convenientt ooperate and maintain
• Ultrasonic adaptive detection algorithm.
• High-contrast OLED color display, suitable for outdoor use under strong light.
• Newly added ultrasonic waveform display function facilitates parameter testing, waveform comparison and other functions to ensure measurement accuracy in complex situations
• Gooduser interface design
• The comprehensive software displays the measurement results, and the method is simple

Working principle of Portable Ultrasonic Liquid Level Indicator

The portable ultrasonic cylinder liquid level indicator couples high-frequency ultrasonic pulses generated by the sensor to the outer wall of the container. An ultrasonic signal is then returned from the container wall. Different media attenuate the received ultrasonic signals differently. The received reflected wave generates an electrical signal. The magnitude of the electrical signal can be displayed by the digital value of the LCD on the panel, and the LED corresponding to the liquid level is lit.

Different sensors have different sensitive devices. When measuring, different containers and different liquids will produce slightly different readings, so this reading is not absolute. But the same thing is that when the sensors are connected to the respective inside and outside of the container, the reading of the level indicator will change significantly. In this way, you can determine whether there is liquid at a certain height position in the container by changing the indicator on the instrument and the value displayed on the LCD.

Extended reading: The Secret of Ultrasonic Level Measurement

How to use Ultrasonic Liquid Level Indicator?

Structure of Portable Ultrasonic Liquid Level Indicator

Applications of Portable Ultrasonic Liquid Level Indicator

• Liquid level detection of dangerous chemicals in storage tank
• Liquid level detection for CO2 storage tank of the fire fighting system in the off shore drilling platform
• Liquid level detection in common tank

Note: Usable for calibration of liquid level meter

Extended reading: GWR Corrosive Liquid Chemical Level Sensor

Portable ultrasonic liquid level indicator for Co2

Co2 cylinder specifications (external diameter division):

The CO2 cylinders measured by this meter are divided into the following 4 specifications: 215mm-225mm diameter cylinders. 270mm-280mm diameter cylinders. 345mm-355mm diameter cylinders. 395mm-405mm diameter cylinders. There are no excessive requirements for the height of the medium and the tank.

If you need to purchase liquid level gauge for CO2 Cylinders, you may like:

CO2 Cylinder | Portable Liquid Level Gauge

Procurement Guide: Ultrasonic liquid level sensors

Co2 cylinder measurement operation:

1. Select “co2 cylinder”-“Choose a suitable cylinder diameter” through the menu and enter the measurement interface.
2. Hold the probe vertically and tightly on the tank, and press the <Measure> button to measure.
3. Measurement results are based on measurement parameters and level indicator lights (red is “no liquid”, green is “with liquid”)
4. Generally, the measurement is started from the bottom of the storage tank (measurement with liquid position). If the measurement parameter is> = 2, the current level is considered to be a liquid-free position. And <2 is considered to be a liquid level. if it is floating around 2, It is considered that the liquid level of the horizontal plane is approaching the liquid surface (usually about 5 cm).
5. Take multiple points on the same horizontal plane for measurement. And take the result with the highest probability as the final result (avoid the interference of welds and unknown factors).
6. Find the liquid level position step by step through the approximation measurement.

Co2 cylinder measurement Note:

Due to the irregular shape of the air outlet and the many welding kits on the top of the carbon dioxide cylinder, the bottom and top measurement results are invalid. (If the fuel tank is full, the top is usually empty).

FAQ

Other Non-Contact Level Measurement

More about: Ultrasonic Level Sensor Applications

Sino-Inst offers Ultrasonic Liquid Level Indicators for tank level indicate. Portable co2 bottle liquid level gauge uses ultrasonic non-contact measurement technology. Detect and display the presence or absence of the Co2 cylinder liquid level.

The Digital portable Ultrasonic Liquid Level Indicators are designed to offer a simple, accurate, rapid and reliable method. Determining the liquid level of high or low pressure CO2, Halon, FM200, Propane, Novec 1230 and any liquefied gas under pressure. No need to move or weigh the cylinders.

Request a Quote

KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.

Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.

drurylandetheatre.com