Model 4500MLP

Multilevel Piezometer (Vibrating Wire)

The Model 4500MLP system overcomes the problems associated with the installation of multiple piezometers in a single drill hole. The 4500MLP is lowered into position and a spring loaded apparatus is actuated forcing specially configured piezometer filter elements into firm contact with the borehole walls. The borehole is then grouted from the bottom in one quick and simple operation.*


Standard Ranges: −100 to 70, 170, 350, 700 kPa; 1, 2, 3, 5, 7.5 MPa
Over Range: 1.5 × rated pressure
Resolution: 0.025% F.S. (minimum)
Accuracy: ±0.1% F.S.
Linearity: <0.5% F.S. (±0.1% F.S. optional)
Temperature Range: −20°C to +80°C
Borehole Diameter: 100 to 150 mm