Non contact water level sensor refers to the radar water level sensor. Radar Water Level Sensor is suitable for water level monitoring of lakes, rivers, reservoirs, open channels, and tidal water levels.

SIRD-909 Radar Non Contact Water Level Sensor

Radar Non-Contact Water Level Sensor adopts a non-contact measurement method and does not touch the water body. It is not affected by water quality, sediment and floating objects. The RS-485/RS-232/4-20mA interface can realize data long-distance wired transmission or docking with SCADA hydrological telemetry system. The measuring distance can be up to 70 meters.

Features of SIRD-909 Radar Non-Contact Water Level Sensor

  • High measurement accuracy and wide range;
  • The minimum blind area is 0.4 meters;
  • quick response;
  • No mechanical rotating parts. There are no problems such as silt blockage, water weeds, and debris entanglement;
  • The analog output can be adjusted arbitrarily;
  • With digital filtering and echo recognition functions;
  • Rugged and stable sensors are suitable for harsh industrial occasions;
  • Mature industrial process control pulse radar ranging technology, extremely stable.

Specifications of SIRD-909 Radar Non Contact Water Level Sensor

Application:Rivers, lakes, shallows
Measuring Range:70 meters
Process Connection:Thread G1½ʺ A / bracket / flange
Process  Temperature:-40~100℃
Process Pressure:Atmospheric
Accuracy:±10mm
Protection Grade:IP67/IP65
Frequency Range:26GHz
Supply:DC (6-24V) / four wire (6 ~ 24V DC) DC 24V / two wire (24V DC)
Signal Output:RS485/Modbus protocol 4~20mA/Hart two wires
On-site display:Optional
Housing: Aluminum/plastic

Radar Non Contact Water Level Sensor for water level monitoring installation

Radar Non-Contact Water Level Sensor is a high-precision non-contact water level measuring instrument, no logging is required. It is easy to install and can directly measure the water level of natural rivers.

Radar Non Contact Water Level Sensor field comparison test application test, analyze the accumulated measurement data and comparison test results. In order to expand the test results, provide a basis for the selection of water level gauges, and at the same time improve the water level measurement and reporting conditions of the hydrological station on the upper reaches of the Yellow River.

Let me introduce to you the installation diagram of Radar Non Contact Water Level Sensor.

Preparation and inspection before installation;

Please pay attention to the following matters to ensure that the meter can be installed correctly;

Please reserve enough space for installation;

Please avoid installation situations with strong vibration;

Please see the installation diagram description and installation location of the radar water level gauge below:

Radar water level gauge used in water conservancy project river water level monitoring installation diagram
Radar water level gauge used in water conservancy project river water level monitoring installation diagram

When a radar antenna emits microwave pulses, it has a certain emission angle.

There should be no obstacles from the lower edge of the antenna to the surface of the measured medium, and in the area radiated by the microwave beam.

Therefore, shielding facilities should be avoided as much as possible during installation, and “false echo learning” must be carried out when necessary.

Also pay attention when installing the instrument: the highest liquid level must not enter the measurement blind zone. The meter must be connected to the ground, and lightning protection measures should be added. Outdoor shading and rainproof measures should be taken.

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.

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

Non Contact Capacitive Liquid Level Sensor

Non Contact Capacitive Liquid Level Sensor

There are three commonly used non-contact liquid level sensors, namely capacitive liquid level sensors, ultrasonic liquid level sensors, and separate photoelectric liquid level sensors.

The non-contact liquid level sensor means that the liquid level can be detected without contacting the liquid. With this advantage, the application field of the non-contact liquid level sensor has been greatly expanded.

The capacitive liquid level sensor can detect the liquid level by attaching it to the container, so the installation process is simple. Capacitive liquid level sensors are mostly used in the field of home appliances because the positioning is due to the small size and low price of the sensor.

If the capacitive liquid level sensor is installed on the body, the container can be moved arbitrarily. For example, the capacitive liquid level sensor detects the low liquid level of the aromatherapy machine. When the sensor detects that the fragrance in the aroma diffuser bottle is only 20ml, it will give a signal to remind you. After the device receives the signal, it turns on the buzzer to alarm or light up to remind. At this time, the user can take the bottle to add liquid, or directly replace another bottle with a new one.

The disadvantage of capacitive liquid level sensors is that they can only be used on non-metallic containers. And it cannot detect liquids with low conductivity, such as diesel gasoline. It is also unable to detect high-temperature liquids. High-temperature liquid will cause the sensor to fail.

Non contact type water level sensor

Non contact level sensor is when the liquid level gauge measures the liquid level, the sensor does not need to touch the measured medium.

Common non contact level sensors include ultrasonic and radar.

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

Ultrasonic Level Sensing

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.

Radar level measurement uses Non-contacting radar technology for Continuous level measurement. Liquids and solids are commonly measured with this measuring technique.

Non-Contacting Radar Level Measurement

Radar level transmitters use radar technology to perform non-contact continuous level measurement. The radar level indicator converts the level into an electrical signal. The level signal output can then be utilised by other instrumentation to monitor or control. Liquids and solids are commonly measured with this measuring technique. Like: Fly ash silo. Radar level sensors are divided into: Pulsed radar technology and frequency modulated continuous wave (FMCW) radar level sensors.

Featured Non Contact Tank Level Sensors

HS-2000 External Mounted Ultrasonic Tank Level Sensor- (referred to as “external level gauge”). It adopts advanced signal processing technology and 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.

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.

Read more about: Ultrasonic Water Level Sensors

More Water Level Sensors

Sino-Inst offers a variety of water level sensors for a wide range of conditions. Our sensors are ideally suited for monitoring water levels in streams, dams and reservoirs. Our water level sensor products include:

  • Submersible Pressure Transducers
  • Radar Level Sensors
  • Magnetostrictive Level Sensors
  • Pressure Transducers
  • Ultrasonic water level sensor

Frequently
Asked
Questions

There are three commonly used non-contact liquid level sensors, namely capacitive liquid level sensors, ultrasonic liquid level sensors, and separate photoelectric liquid level sensors.

The non-contact liquid level sensor means that the liquid level can be detected without contacting the liquid. With this advantage, the application field of the non-contact liquid level sensor has been greatly expanded.

The working principle of the non-contact liquid level sensor:

Calculate the distance between the sensor and the measured object through the time of transmitting and receiving signals. Since the propagation speed in the air is constant, the distance between the liquid level sensor and the bottom of the container is constant, and the liquid level of the measured object can be known.

Ultrasonic sensors can detect the water level.

Ultrasonic sensors are widely used. There are many methods for liquid level measurement. Among them, the ultrasonic sensor has a simple structure, small size, low cost, simple and reliable information processing. Easy to miniaturize and integrate. And can be controlled in real-time. Therefore, the ultrasonic measurement method has been widely used. In addition, the accurate measurement of liquid level is an important guarantee for realizing production process detection and real-time control. It is also an important link to realize safe production.

The general photoelectric liquid level sensor installation is that only the light cone is in contact with the liquid. Therefore, the waterproof rating generally meets the conditions of IP64-67.

If you need to put the entire probe in the liquid, directly contact the liquid. Then the waterproof level IP64 cannot be achieved, and it needs to reach IP68.

The water level sensor supplied by Sino-Inst can meet the waterproof requirement of IP68.

Sino-Inst offers over 10 Radar Non Contact Water Level Sensors for level measurement. About 50% of these are Radar level meters, 40% is the tank level sensor.

A wide variety of Radar Non Contact Water 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 radar level measurement instrumentation, located in China.

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