City Drainage Pump Station Level Monitoring: Dayu Integrated Ultrasonic Level Meter Replacement Solution [Dayu Electronics]
A municipal drainage pump station previously used Siemens ultrasonic level meters, an international first-tier brand, for level monitoring. Although the equipment performed stably, the high procurement and later maintenance costs placed considerable pressure on the pump station's long-term operations. In response to the requirements for refined and economical management of municipal facilities, the pump station management decided to seek a cost-effective replacement solution.

Project Background and Challenges
Application Scenario: Level monitoring of the collection sump at a city core drainage pump station.
This pump station is a key point for urban flood control and drainage, responsible for collecting rainwater and domestic sewage from surrounding areas and discharging them promptly into the main pipeline via pump sets. The level of the collection sump is the core parameter controlling the start/stop of pumps and preventing overflow and dry running. The accuracy and stability of its monitoring directly affect the safe operation of the urban drainage system.
Product Selection: Dayu Integrated Ultrasonic Level Meter

After market research and extensive comparison, the pump station management ultimately selected the Fuzhou Dayu integrated ultrasonic level meter.
(1) Product Parameters:
Structure: Integrated
Measuring Range: 10 meters
Output: 4-20mA
Power Supply: 24V
(2) Product Advantages:
Highly Integrated, Easy Installation: The integrated design of the probe and head unit reduces installation points and potential failure points, making it especially suitable for rapid deployment at pump station sites.
Accurate Measurement, Reliable Performance: Utilizing advanced signal processing technology and high-quality piezoelectric ceramic probes, it effectively resists common dust and electromagnetic interference at pump stations, ensuring stable and accurate measurement data.
Intelligent Algorithms, High Adaptability: Built-in adaptive filtering algorithms and false echo recognition technology automatically avoid clutter and other interference, accurately locking onto the true liquid level.
High Cost-Effectiveness, Controllable Costs: While maintaining core performance equivalent to imported brands, the product price is kept at a highly competitive level, significantly reducing customer procurement and maintenance costs.

Installation Precautions:
1. Assuming an installation height of 3 meters, no obstacles are allowed within a radius of 3 * 12% = 0.36 meters from the probe.
2. The probe must be perpendicular to the measured water surface.
3. Choose a location with stable water flow for installation.
4. The cable between the probe and the main unit must be protected by conduit to prevent wear or damage caused by factors such as movement.
5. The cable between the probe and the main unit must not be routed near AC power cables. If AC power cables are nearby, maintain a minimum separation of 1 meter. If the cables are protected in metal conduit, the minimum distance is 15 centimeters.
6. The instrument must be reliably grounded and must not share a ground with other equipment. The grounding resistance must be < 4 ohms.
Proper lightning protection and reliable grounding are required to prevent equipment damage from lightning strikes.
