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Settlement Sensors

Borehole Type Settlement System (VW) | Model 4600

  • Model 4600 Settlement System.
Model 4600

The Model 4600 Borehole Type Vibrating Wire Settlement System is designed for the remote measurement of surface or subsurface settlement in fills, surcharges, dams, embankments, etc. A borehole is drilled which allows a pressure transducer to be anchored to solid ground below the area of settlement. A fluid filled tube extends upward connecting the transducer to a reservoir which is located in the moving strata or fill. The measurement of fluid pressure indicates the elevation difference between the sensor and the reservoir. This design eliminates the need for long liquid filled tubes.


Standard Ranges¹
7, 17, 35 m
0.025% F.S.
Sensor Accuracy²
±0.1% F.S.
Temperature Range
−20°C to +80°C
Length × Diameter
305 × 60 mm (reservoir), 280 × 60 mm (sensor)

¹Other ranges available on request.

²Laboratory accuracy. Total system accuracy is subject to site-specific variables.

Please Note: GEOKON maintains an ongoing policy of design review and reserves the right to amend products and specifications without notice. Various instruments are discontinued over time and replaced with new, updated models.