Dayu Electronics: How the Integrated Explosion-Proof Ultrasonic Level Meter Solves Wastewater Treatment Monitoring Challenges
In industrial and municipal wastewater treatment processes, precise monitoring of sewage levels is a core element in ensuring production safety, preventing sewage overflow, and maintaining stable treatment operations. The accuracy of level monitoring data directly affects the rationality of key processes such as pump station scheduling and process adjustments. If monitoring equipment is poorly suited to the application, issues such as measurement deviations and signal disturbances may arise, not only impacting treatment efficiency but also posing safety hazards and environmental risks.
A client specializing in the operation and maintenance of industrial and municipal wastewater treatment faced complex conditions in their on-site wastewater treatment processes. The existing level monitoring equipment, due to poor adaptability, could not meet the requirements for accurate measurement in turbid sewage and explosive atmospheres. A customized, highly adaptable level monitoring solution was urgently needed to overcome measurement challenges in harsh water conditions and ensure safe, orderly production on site.
On-Site Conditions and Core Client Requirements
(I) On-Site Condition Details
Water Quality Conditions: The wastewater being treated is a mixture of industrial and municipal sewage with high turbidity, containing small amounts of floating debris (such as debris fragments and suspended particles), minimal foam generation, and no strong corrosiveness. Due to the high concentration of suspended solids, high demands are placed on the anti-interference capability and signal stability of the Dayu Electronics ultrasonic level meter probe.
Installation Conditions: Flange mounting is used on site. Based on field surveys, the original flange bolt hole spacing is approximately 125mm, compatible with DN50 flange specifications, with a mounting aperture of 70mm. The client explicitly required an integrated device, and the probe insertion length needed to be customized according to the on-site installation depth to ensure the equipment fits the actual conditions, with provisions for additional modifications to the existing mounting points.

Environmental Conditions: The site is classified as an explosive area and must comply with relevant industrial explosion-proof standards to eliminate safety hazards during equipment operation.
(II) Core Client Requirements
Achieve accurate, real-time monitoring of sewage levels with measurement errors controlled within a reasonable range, effectively avoiding the risk of sewage overflow caused by inaccurate level monitoring.
Equipment must be suitable for turbid sewage and minor floating debris conditions, with strong anti-interference capability to ensure long-term stable operation and reduce maintenance frequency.
Meet on-site explosion-proof requirements, with equipment construction conforming to explosion-proof standards to ensure production safety.
The equipment must feature an integrated design, with flange specifications and probe insertion length precisely matching on-site installation parameters for easy installation without additional modifications.

Solution
Based on the client's on-site conditions and core requirements, we conducted field surveys and parameter calculations. Leveraging the key advantages of ultrasonic level meters—non-contact measurement, strong anti-interference, and easy installation—we customized a dedicated level monitoring solution focused on resolving three core issues: harsh water quality, explosive environments, and installation compatibility. The specific product selection is as follows:
① Selected the integrated explosion-proof ultrasonic level meter with the probe extended to 280mm, fully matching on-site installation and operating requirements.
② Flange Specification Adaptation: Chose a DN50 flange, precisely matching the on-site 125mm bolt hole spacing and 70mm mounting aperture, ensuring a high degree of installation fit. This allows direct connection and installation, significantly improving installation efficiency while ensuring equipment stability and avoiding measurement errors caused by installation deviations.

Product Advantages
Integrated Structure Adaptation: The integrated design consolidates the sensor, transmitter, and display module into a compact housing, eliminating the need for separate installation. This perfectly meets the client's requirement for an integrated device, simplifies the installation process, reduces on-site installation complexity, and adapts to the spatial requirements of wastewater treatment sites.
Custom Probe Length: Based on the on-site installation depth, the probe is extended to 280mm to ensure accurate contact with the measurement zone while adapting to the mounting aperture. This avoids issues of the probe being too short to reach the effective measurement range or too long causing installation difficulties, further enhancing measurement accuracy.
Explosion-Proof and Anti-Interference Design: The equipment features an integrated explosion-proof structure that complies with industrial explosion-proof standards, allowing safe operation in on-site explosive areas and eliminating safety hazards. Additionally, the ultrasonic measurement principle inherently provides strong anti-interference capability.
Application Results and Client Feedback

Application Results
① Accurate and Stable Measurement: After commissioning, the equipment accurately monitors changes in sewage levels, with measurement precision meeting industrial standards. Real-time level data feedback eliminates the risk of sewage overflow due to inaccurate monitoring, providing reliable data support for process adjustments—like equipping the wastewater treatment system with "smart eyes."
② Excellent Adaptability: The DN50 flange and 280mm extended probe perfectly match on-site installation parameters. The integrated structure allows for convenient installation without additional modifications, greatly improving installation efficiency. The equipment's explosion-proof performance meets standards, ensuring safe operation in explosive areas and fully satisfying all on-site requirements.
③ Stable and Reliable Operation: With strong anti-interference capability, the equipment operates stably over the long term under conditions of turbid sewage and minor floating debris, with no issues such as signal disturbances or measurement deviations. Low maintenance frequency effectively reduces customer operational costs, and the equipment's robust protective performance adapts to normal on-site temperature and pressure conditions, further enhancing operational stability.
④ Ensuring Production Safety: By accurately monitoring level changes and providing timely warnings of anomalies, the equipment effectively prevents sewage overflow, avoiding environmental pollution and safety hazards, and ensuring safe and orderly production at industrial and municipal wastewater treatment sites.

The client highly praised the adaptability, stability, and application results of this level monitoring solution, recognizing that it precisely fits the on-site conditions and effectively resolves the previous issues of inaccurate measurement and poor equipment adaptability. The integrated explosion-proof ultrasonic level meter's ease of installation, anti-interference capability, and explosion-proof performance fully meet on-site production safety and monitoring needs. It not only improves operational efficiency at the wastewater treatment site but also reduces safety risks, providing strong support for the stable advancement of subsequent treatment processes. The client looks forward to deepening cooperation in the future to provide customized solutions for more wastewater treatment scenarios.
