The RST Vibrating Wire Liquid Settlement System consists of a fluid body, reference reservoir, flexible tubing, and a cabled sensor wired to a central readout or data logger location.
A Vibrating Wire pressure sensor is attached to a steel plate located at the point to be monitored and connected via twin liquid-filled tubes extending laterally to a reservoir located on stable ground. The sensor measures the hydraulic head of liquid between the sensor and reservoir locations.

Combined with a reference cell typically located near the reservoir, any external influences such as barometric pressure and/or temperature can be accounted for. The liquid filled tubes can also be flushed for situations where air bubbles have been found in the twin-tube lines, which can affect the reliability of readings. A Portable D-Aerator can be ordered separately for situations where flushing the liquid twin tubing lines is required.

Product features

• Tubes ship pre-filled with water/glycol
• Pre-tested and calibrated
• Reference cells ensure consistent data validity
• Multi-cell reservoirs allow for cost-effective cabling/tubing