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W2 - HYDRAULIC PIEZOMETER

Range (kPa) Bourdon gauge: -5kPa to 2000kPa 
Accuracy ±1.0% full scale 

Bourdon master gauge panel: 0kPa to 1500kPa
Accuracy ±1.0% full scale ±0.25% full scale

Material Porous Ceramic Porosity HAE 1 Micron or LAE 60 Microns
Hydraulic Tubing Type : Twin Nylon tubes sheathed in Polythene, flat or round in section

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W2 - HYDRAULIC PIEZOMETER

W2 - HYDRAULIC PIEZOMETER

Range (kPa) Bourdon gauge: -5kPa to 2000kPa 
Accuracy ±1.0% full scale 

Bourdon master gauge panel: 0kPa to 1500kPa
Accuracy ±1.0% full scale ±0.25% full scale

Material Porous Ceramic Porosity HAE 1 Micron or LAE 60 Microns
Hydraulic Tubing Type : Twin Nylon tubes sheathed in Polythene, flat or round in section

 

The Hydraulic Piezometer W2 is designed for the accurate measurement of pore water pressures in fully or partially saturated soil and rock.

The Piezometer tip comprises a porous ceramic filter vessel. Twin hydraulic tubes connect each filter tip to a remote reading terminal where the hydraulic pressure may be read by either a Bourdon gauge or an electrical pressure transducer.

The hydraulic system is flushable so that air or gas accumulation at the piezometer filter tip which can produce reading inaccuracies and time lag, can be fully removed to provide a ‘hard’ hydraulic circuit.

In addition, the hydraulic piezometer system may be used for constant head permeability testing of the ground in which the piezometer tips are installed.