MEJ-ULS-B Ultrasonic level transmitter

MEJ-ULS-B ultrasonic level transmitter is a level measuring instrument based on the principle of ultrasonic distance measurement, suitable for level monitoring of liquid, slurry or granular materials. Combining the characteristics of ultrasonic technology with product design, its core advantages can be summarized as follows:

MEJ-ULS-B ultrasonic level transmitter for non-contact measurement, suitable for multiple media

Non contact with the measured medium: The sensor is installed on the top of the container and measures by emitting ultrasonic pulses and receiving reflected echoes, avoiding direct contact with corrosive liquids, viscous slurries, or granular materials. It is suitable for scenarios such as sewage treatment tanks, chemical storage tanks, and grain warehouses.
Wide compatibility of media:
Liquid measurement: such as water, oil, acid-base solutions, sewage, etc;
Solid measurement: such as granular materials (requiring stable resting angle and smooth surface);
Not suitable for environments with high temperatures (>80 ℃), intense steam, or extremely high dust concentrations (ultrasonic waves are easily absorbed or scattered).

MEJ-ULS-B ultrasonic level transmitter measurement range and accuracy balance

Moderate range: The conventional range can reach 0.2-15 meters, suitable for small and medium-sized storage tanks, water tanks, or silos. Some models can be extended to 20 meters through optimization algorithms.
Accuracy meets industrial requirements: the error is usually ± 0.2% FS~± 1% FS (FS is full scale), suitable for liquid level monitoring scenarios that do not require strict accuracy requirements (such as water level control in water tanks, high and low level alarms in storage tanks).

Anti interference design and environmental adaptability of MEJ-ULS-B ultrasonic level transmitter

Intelligent echo processing: Built in digital filtering algorithm can suppress false echoes caused by obstacles (such as agitators, pipelines) or liquid level fluctuations (such as feed impact) inside the container, improving measurement stability.
Environmental compensation function:
Automatic temperature compensation: corrects the propagation speed of ultrasonic waves in the air through a built-in temperature sensor (the speed of sound changes by about 0.6m/s ·℃ with temperature);
Anti condensation design: The sensor surface adopts a hydrophobic coating or heating component (optional) to prevent condensation water from adhering and affecting sound wave emission.

MEJ-ULS-B ultrasonic level transmitter is easy to install and maintain

Flexible installation method: supports threaded installation, flange installation, or bracket fixation, without the need for openings in the container wall, suitable for rapid deployment on site; The blind spot is small (usually<0.3 meters) and can be installed close to the top of the container.
Maintenance free feature: No mechanical moving parts, sensors are mostly made of ABS, PVDF or stainless steel, wear-resistant and corrosion-resistant, and do not require regular calibration or cleaning under normal working conditions.
Fault self checking function: equipped with echo signal strength monitoring and abnormal alarm (such as signal loss, range exceeding), facilitating on-site troubleshooting.

MEJ-ULS-B ultrasonic level transmitter signal output and system integration

Standard industrial interface:
Analog output: 4-20mA current signal (two-wire or three wire system), supporting HART protocol;
Digital output: RS485 (Modbus RTU protocol), can be connected to PLC, DCS or IoT platforms;
Optional switch output: supports upper and lower limit alarms (relay contacts), linked valves or pump sets.
Convenient local operation: equipped with an LCD display screen and buttons, it can display liquid level values, echo status, and temperature parameters in real time, and support on-site configuration (such as setting range, blind zone, damping time).

Economy and cost-effectiveness of MEJ-ULS-B ultrasonic level transmitter

Cost advantage: Compared to radar level gauges or servo level gauges, ultrasonic level transmitters are cheaper and suitable for small and medium-sized projects with limited budgets (such as municipal water supply, food processing, and small warehousing).
Low power design: The power consumption of the two-wire model is usually less than 3W, suitable for remote scenarios powered by batteries or solar energy (such as outdoor reservoir monitoring).

Industry adaptability and extended functions of MEJ-ULS-B ultrasonic level transmitter

Typical application scenarios:
Water industry: monitoring of flow in clean water tanks, sewage wells, and open channels (in conjunction with weir calculations);
Chemical industry: Safe liquid level monitoring of weak acid and weak alkali storage tanks and solvent tanks;
Agriculture/Warehousing: Management of grain storage levels and feed tank inventory.
Extended functions:
Multi point measurement: supports networking of multiple devices and enables centralized monitoring of large tank clusters through software;
Volume calculation: Built in volume liquid level conversion formula, directly outputs volume value (requires preset container shape parameters).

Ultrasonic level transmitters use ultrasonic waves to reflect when encountering the interface of liquid media (solid media) of different densities, and measure the liquid level/distance by measuring the transit time.