Ultrasonic Liquid Level Gauge

SummaryDescribed

Ultrasound refers to sound waves with frequencies above 20 kHz. It is a type of mechanical wave, representing the propagation of mechanical vibrations through an elastic medium. Characterized by high frequency, short wavelengths, and minimal diffraction, ultrasound also exhibits good directionality, allowing it to propagate in a directional beam. Ultrasound experiences minimal attenuation in liquids and solids, making it highly penetrating, especially in solids that are opaque to light. It can penetrate lengths of up to several meters and produce significant reflections upon encountering impurities or interfaces. Given the principle of ultrasound propagation in a medium, if the pressure, temperature, density, and humidity of the medium are constant, the speed of ultrasound propagation through that medium remains a constant. Therefore, by measuring the time it takes for ultrasound to travel from emission to reflection off a liquid surface and back to reception, the distance traveled by the ultrasound can be calculated, thus obtaining the liquid level data.

CompanyLRD-CSBUltrasonic Level GaugeRich in variety, ranging from all-in-one to split models, with complete specifications, low blind spots, and high sensitivity, easy to install. Featuring exclusive automatic power control technology and the application of multiple intelligent signal processing technologies, it boasts multiple patented technologies and can truly withstand various on-site challenges.

SpecialDot

●Maximum range up to 40m; solid level measurement up to 25m.

●Minimum resolution: 1mm.

●LCD/LED Large-Screen Displays

●Intelligent Signal Processing Technology.

●All-plastic corrosion-resistant housing: Protection rating IP67.

●Patented transducer structure: For the installation of the level gauge with a small measurement range flange, there are no requirements for the length of the flange adapter.

●Simple button setup parameters: No need to wait for the container to empty or fill up, no additional remote control required.

●Flexible installation options: Threaded (Flange), Fixed holes (Bracket).

●Probe can be extended: Suitable for outdoor sealed container installations in cold regions to prevent frost formation.

● Equipped with high and low position dual relays: This feature is provided with a four-wire system.

●Home Liu offers optional DC power supply: available in a four-wire system and a separate main unit.

Primary Technical Specifications

LRD-CSBIntegrated ultrasonic level gaugeSelection

Wiring type selection

Two-wire system: The two-wire ultrasonic level gauge shares a single loop for both power supply (only DC24V) and signal output (DC4-20mA), requiring only two wires, which is a standard transmitter configuration.

Three-wire System: The three-wire ultrasonic level gauge is actually a four-wire system. Its power supply (only DC24V) and signal output (DC4-20mA) circuits are separated, each using two wires. When the negative terminals are grounded together, three wires are typically sufficient. The advantage is that it has a higher transmission power.

Four-wire system: Power supply (DC24V or AC220V) and signal output (DC4-20mA) circuits are separated, using two wires. The advantage is that it has a higher transmission power and also provides high and low relay outputs, adding new features.

Measurement Range

Select the appropriate ultrasonic level gauge model based on the actual measurement range.

If the liquid being tested is highly fluctuating, please select a model with a larger range.

The effective measurement range for solid level measurement is half of the liquid level range.Please provide the Chinese content to be translated.2/3。

Supply Voltage

DC 24V power supply:

The power supply current capability for the two-wire series should not be less than 30mA.

The supply current capability for the three-line series should not be less than 60mA.

The power supply current capacity for the four-wire series should be no less than 80mA.

AC 220V power supply:

Products from the four-wire series only can be selected, with a power supply current capability of no less than 50mA.

Container Installation Conditions

Airtight container:

For 8mThe following ranges, the containers must have:Flanges with DN65 and above do not have any specific requirements for the length of the pipe stubs below the flanges.

For 10m、12mRange, with the container markedDN80The above flange outlets have a pipe length below the flange.150mm。

For 15mRange, must be marked on the containerDN150The above flange outlets have a reducer length less than the flange below.150mm。

For 20m、30m、40mRange, with the container to haveDN200The above flange outlet has a pipe length below the flange that is less than200mm。

Open containers:

For 8mThe following range, the container must have a diameterMounting holes over 65mm.

For 10m、12mRange, the container must have a diameter80mmAbove installation hole, the thickness of the installation hole is less than150mm。

For 15mRange, the container must have a diameter150mmAbove installation port, the thickness of the installation port is less than150mm。

For 20 meters、30m、40mRange, the container must have a diameter200mmAbove installation hole, the thickness of the installation hole is less than200mm。

Open-Ended Pool

Installation bracket required

 Product Range

If the liquid being tested has significant fluctuations, please choose a model one size larger. The effective measurement range for solid level measurement is from 1/2 to 2/3 of the liquid level.

Description:

The two-wire series does not include models with 12-meter or 40-meter scales.

2. The three-wire series does not include models with 10-meter and 40-meter scales.

3. The four-line series and split-type standard models do not include 10-meter range types.

4. Split-type slim models, no 12m or 40m range options.

5. 4-wire and split-type DC24V-powered products offer LED digital tube displays, while all other products feature LCD liquid crystal displays.