The Hach BL9000 Bubble Level Sensor is a robust and reliable solution for measuring liquid levels in municipal and industrial flow monitoring applications. Designed specifically for seamless integration with the Hach FL1500 Flow Logger and the Hach FL900 Ultrasonic Flow Logger, the BL9000 provides accurate and stable level measurements using a simple tubing and bubble pressure system. Unlike traditional level sensors, the BL9000 requires no external air pump, reducing complexity and maintenance needs while ensuring continuous performance.

Environmental challenges such as steam, foam, high temperatures, and reverse flow won’t impact the BL9000’s ability to deliver precise measurements. Its self-purging function prevents clogging and debris buildup, minimizing maintenance while maintaining long-term accuracy.


Key Capabilities:

• Accurate Measurement Regardless of Conditions – Delivers precise level readings even in environments with foam, steam, and fluctuating temperatures, ensuring consistent performance.


• Low Maintenance – Self-generated continuous bubbling system keeps the sensor line clean, eliminating the need for frequent manual maintenance.


• Seamless Logger Integration – Designed specifically for the FL1500 Flow Logger, ensuring reliable data collection and streamlined setup for flow monitoring applications.


• No External Air Pump Required – The integrated air bubble system maintains stable pressure for level measurement without requiring additional equipment.


• Reliable Flow Calculation – Reports accurate level readings to the FL1500 Flow Logger, which calculates flow rates based on site-specific parameters.


• Durable and Easy to Install – Comes with a surface-mounting bracket and a 6-foot cable, providing a straightforward installation process for new and existing monitoring sites.