LevelVue B10 Water-Level Continuous Flow Bubbler

Compact, easy-to-use, water-level bubbler, meets or exceeds USGS OSW requirements

The LevelVue™B10 is a cost-effective, accurate, reliable solution for water-level measurements based on a non-submersible pressure transducer system. This type of sensor is a bubbler. Bubblers accurately measure the pressure it takes to create a continuous airflow in an airline submerged in water. The LevelVue B10 is designed for ease of use while providing long-term performance and accuracy. With a built-in keypad and display, you can complete your setup and site visit tasks using the LevelVue B10. The LevelVue B10 interfaces with data loggers or other controllers using SDI-12 or Modbus.

The LevelVue B10 bubbler incorporates all the components needed to be a self-contained, pressurized air-supply system. This bubbler has an industrial air compressor (-40° to +80°C), large air tank (0.8 L), and other components that replace the need for pressurized air tanks and manual valves found in the older continuous gas flow systems. The LevelVue B10 meters the airflow to create a constant flow in the orifice line regardless of the water depth above the outlet. Precision sensors monitor the tank pressure and the line pressure to consistently maintain the same airflow. The precision sensor monitoring the pressure on the orifice line precisely detects the pressure required to push air through the line. This pressure value is directly related to water depth. Applying a simple conversion to the pressure value creates the value of water depth in feet, meters, or other units of measure.

Benefits and Features

    • Low-power idle state for extended battery life
    • Proprietary high-pressure/high-volume purge operation to prevent sediment buildup
    • Simultaneous operation on the SDI-12 interface and Modbus interface
    • Built-in keypad/display for full setup and maintenance operation
    • Incorporated SDI-12 version 1.4 metadata commands for identification of data
    • Standard cold temperature (-40°C) operation
    • Proprietary air flow/bubble generation designed for years of trouble-free operation
Operating Temperature Range -40° to +60°C
Storage Temperature Range -40° to +80°C
Relative Humidity 0 to 95% (non-condensing)
Accuracy ≤ 0.02% of full-scale output (FSO) over temperature range
Sensor Overpressure Rating 2 times the pressure
Memory All settings and parameters are stored in non-volatile memory.
Real-Time Clock Clock continues to operate with lithium battery, preserving the bubbler’s time over power disconnects.
Long-Term Drift 0.1% FS/6 months
Enclosure Material Fiberglass
Enclosure Dimensions 28.89 x 33.66 x 13.34 cm (11.375 x 13.25 x 5.25 in.) external
Enclosure Weight 7.48 kg (16.5 lb)
Sensor Resolution for Range
0 to 10.54 m (34.6 ft) ±2.1 mm (0.007 ft) for 0 to 15 PSI
0 to 21 m (69.2 ft) ±4.26 mm (0.014 ft) for 0 to 30 PSI
0 to 35.16 m (115.35 ft) ±7.11 mm (0.023 ft) for 0 to 50 PSI
Airflow Type Microprocessor-controlled constant airflow over full pressure range and temperature
Bubble Rate
  • 30 to 120 bubbles per minute (programmable; based on 0.635 cm [0.25 in.] inner diameter outlet)
  • 60 bubbles per minute (default)
Manual Purge Operation Immediate purge triggered via built-in keypad/display, SDI-12 command, or Modbus register
Purge Pressure 30 to 90 PSI (user-programmable)
Purge Activation
  • Built-in keypad
  • Automated under program control using SDI-12 extended command or Modbus register
  • Scheduled from once a day to once every 30 days; 1-day resolution
Purge Sustain Time 0 to 30 s (programmable)
Pressure Inlet 1/8 in. female NPT
Orifice Line Outlet 1/8 in. female NPT
Input Voltage Range 11.5 to 16.5 V
  • 5 mA (standby)
  • 10 A (compressor active, maximum)
  • 7 A (compressor active, typical)
  • 18 A (maximum startup surge)
Power Protection Power inputs are protected against surge, overvoltage, and reverse polarity connection of supply power up to 20 VDC. The internal air compressor is protected by the system level reverse polarity protection.
Power Consumption Power consumption is less than 60 mA on average at a 60 bubble/min rate with averaged samples over 10 seconds.
Output Options SDI-12, RS-485
SDI-12 Protocol SDI-12 V1.4 compliant
SDI-12 Default “M” Measurement Response Time 8 s
RS-485 Protocol Modbus, 8 data bits, no parity, 1 stop bit
RS-485 Baud Rate 9600
Keypad/Display Description
  • 8-line by 20-character OLED graphical display
  • Operational over the entire temperature range.
  • Application-specific menu provides complete system setup.

Brochures: LevelVue B10 Water-Level Continuous Flow Bubbler with Integrated Screen


Manuals: LevelVUE B10 Water-Level Continuous Flow Bubbler with Integrated Screen


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