Product Manual (pdf)

Product Introduction

The KH.WQX Pneumatic Bubble Water Level Sensor is a high-precision water level monitoring device designed for real-time hydrological and environmental monitoring. Using advanced bubbler technology, it accurately measures water levels in rivers, reservoirs, canals, and open channels without direct contact with water. The sensor transmits data via RS485, SDI-12, and IoT protocols, enabling seamless integration with remote telemetry systems, flood warning platforms, and smart water management networks.

This sensor is ideal for hydrological stations, irrigation systems, pumping stations, hydropower plants, and flood control projects, offering reliable long-term performance, low maintenance, and high measurement accuracy even in harsh environments.

Key Features

• Long-Term Stability and Accuracy: Measures compressed air pressure instead of direct water contact, ensuring minimal sensor aging and consistent accuracy.

• Automatic Zero Calibration: Scheduled automatic zero-point correction eliminates drift and cumulative measurement errors for reliable data.

• Easy Field Installation: No stilling wells required; unaffected by floating debris, sediment, algae, or water impurities.

• Enhanced Lightning Protection: Submerged components are electronics-free, reducing lightning risks during storms.

• Temperature Compensation: Optional external sensor corrects density variation for more precise readings.

• Flexible Output Interfaces: Supports analog output, RS485, SDI-12, and IoT wireless data transmission.

• Wide Voltage and Surge Protection: Built-in reverse polarity, overvoltage, and lightning surge protection ensures stable operation.

• User-Friendly Local Display: Integrated LCD with keypad for real-time on-site water level monitoring and configuration.

• Automatic Air Tube Cleaning: Prevents blockage for long-term reliable operation in sediment-laden waters.

• Data Storage Capability: Cyclic storage for up to 10,000 measurements, enabling historical data analysis.

• Modular Design for Easy Maintenance: Replaceable air tube reduces service costs and extends system lifespan.

Application Scenarios

• Rivers, Reservoirs, Streams, and Canals: Continuous water level monitoring for environmental and hydrological management.

• National Hydrological Stations: Reliable compliance with official monitoring standards.

• Pumping Stations, Irrigation Systems, and Hydropower Plants: Remote water level control and operational safety monitoring.

• Flood Early Warning Systems and Disaster Prevention: Real-time data for decision-making and emergency alerts.

• Environmental Monitoring and Smart Water Management: Integration with IoT platforms for comprehensive water resource management.

Technical Specifications