The DB1 is a self-calibrating system that measures water level (or other liquids), such as measurement in channels and stilling wells. It detects level by measuring the pressure required to force nitrogen bubbles from a pair of submerged tubes. The orifices of the tubes are separated by a fixed vertical distance. The pressure line that is measured is determined by the datalogger, which opens and closes valves on the manifold assembly. A single pressure transducer measures each of the tubes, as well as the atmospheric pressure. This technique compensates for temperature effects and long-term drift in the transducer, producing a more accurate measurement.
| Campbell Scientific, Inc. | |
|---|---|
| Product Category | Level Sensors |
| Product Number | DB1 |
| Product Name | Double Bubbler Liquid Level Sensor |
| Device Classification | Sensor Only |
| Media Type | Liquid |
| Level Measurement Type | Single Point or Multi-Point Level |
| Output Options | AnalogCurrent |
| Material Temperature Range | -13 to 122 F (-25 to 50 C) |
