The drainage pipeline level gauge is the core equipment for monitoring urban drainage systems and industrial pipelines. The standardization of its installation and use directly affects data accuracy and equipment lifespan. withHDL-100Taking the type of drainage pipe network level gauge as an example, this article systematically outlines key precautions from installation environment selection, equipment fixation method, data configuration to daily maintenance, providing operation guidelines for engineering personnel.

1、 Installation environment selection: Avoid interference and ensure signal stability

1. Avoid strong electromagnetic interference sources

HDL-100adopt4GWireless communication and radar/Pressure dual sensors should be kept away from strong electromagnetic fields such as high-voltage lines and transformers. For example, a city failed to avoid the nearby substation during installation, resulting in data transmission interruption, and then adjusted the position to50After reaching a distance of meters, it returned to normal.

2. Avoid obstruction by obstacles

Radar sensors rely on microwave reflection, and their installation location should avoid obstacles such as wellbore protrusions and pipe supports. It is recommended to choose the center position at the top of the manhole to ensure that the radar beam is perpendicular to the liquid level and unobstructed. During the renovation of an old residential area, the interference of rust on the wellbore wall caused radar signals, resulting in a deviation of liquid level data10%After cleaning, the error is reduced to±3Within millimeters.

3. Adapt to humid and corrosive environments

The drainage network environment is humid, and the equipment needs to haveIP68Protection level.HDL-100The shell adopts304Stainless steel material can resist corrosion from sediment and sewage, but it is necessary to avoid long-term immersion in strong acid and alkali liquids. During pipeline monitoring in a chemical plant, liquidpHThe value is too low, and there is slight corrosion on the equipment casing. A protective cover was installed later to solve the problem.

2、 Equipment fixation and debugging: stable installation, precise calibration

1. Fixed method selection

Screw fixation: suitable for concrete well walls, requires useM8Expansion screws ensure a tight fit between the equipment and the wellbore, preventing data fluctuations caused by vibration.

Magnetic suction installation: suitable for metal wellbore walls, need to check if the magnetic suction is correct≥50kgTo avoid equipment detachment. Due to insufficient magnetic attraction during installation in a city, the equipment became loose in rainstorm, and then it was fixed with screws.

2. Horizontal calibration and angle adjustment

The radar sensor needs to be kept level, with a tilt angle exceeding5°It can lead to measurement errors. After installation, it is necessary to calibrate with a level and verify through the angle sensor provided by the equipment. Due to an uncalibrated level in a certain project, the liquid level data is lower than the actual value8%After readjustment, the data was restored accurately.

3. Initial parameter configuration

Configure the collection interval through serial port, Bluetooth, or remote platform (recommended)5-30Minutes), warning threshold (usually set as the diameter of the pipe)70%-80%）. A certain city will raise the warning threshold during the flood season80%adjust to70%In advance30The drainage pump was triggered in minutes, effectively avoiding waterlogging.

3、 Daily use and maintenance: Regular inspections to extend lifespan

1. Regularly clean the sensor

The surface of the radar sensor is prone to sediment and algae, so it needs to be wiped with a soft cloth every quarter to avoid signal attenuation. The pressure sensor needs to check if the air inlet is blocked. A certain food factory caused abnormal pressure data due to uncleaning the air inlet, but it was restored to normal after cleaning.

2. Battery and power supply inspection

HDL-100Support solar energy/Complementary power supply from the mains requires monthly inspection of battery voltage (normal value)≥3.6V）And the cleanliness of solar panels. A reservoir monitoring station in a mountainous area experienced a decrease in battery power due to dust accumulation on solar panels20%This caused the equipment to shut down, but after cleaning, it resumed operation.

3. Data anomaly investigation

If the data suddenly interrupts or fluctuates abnormally, it is necessary to check:

Signal strength:4GSignal strength required≥-100dBmOtherwise, the antenna position needs to be adjusted or a signal amplifier needs to be installed.

Sensor status: View radar through remote platform/Is the pressure sensor online? In a certain project, data was missing due to a pressure sensor malfunction, which was replaced and restored.

Conclusion

HDL-100The installation and use of drainage pipeline level gauges must strictly follow environmental selection, fixed debugging, daily maintenance and other specifications. By avoiding electromagnetic interference, ensuring horizontal calibration, and regularly cleaning sensors, data accuracy and equipment lifespan can be significantly improved. Practice has shown that standardized operation of equipment can reduce the failure rate60%The above provides reliable guarantees for urban drainage safety.