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Settlement Sensors

Model 4650 Settlement System | Discontinued

  • Model 4650 Settlement System (this product has been discontinued).

The Model 4650 Settlement System uses a Pressure Transducer attached to a settlement plate located in the settling ground. The sensor is connected, via two fluid filled tubes extending laterally, to a reservoir located on firm ground away from the area of anticipated movement. Fluid pressure within the tubes is sensed by the transducer which provides a measure of the elevation difference between the sensor and the reservoir. The tubes are flushable and the closed loop vented transducer/reservoir system is not influenced by barometric pressure.

The Model 4650 has been replaced by the Model 4660 Settlement System.


Standard Ranges¹
7, 17 m
0.025% F.S.
Sensor Accuracy²
±0.1% F.S.
Temperature Range
−20°C to +80°C
Length × Diameter
152 × 51 mm (reservoir), 191 × 35 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.