Piezometers
Standard Piezometers
The Model 4500 Standard Piezometer is designed to measure fluid pressures such as ground water elevations and pore pressures when buried directly in embankments, fills, etc. Also for installation inside boreholes, observation wells and standard (>19 mm diameter) piezometer riser pipe. The Model 4500S is designed with a heavy duty housing for pressures that exceed 3 MPa. The Model 4500AL is designed for low-pressure ranges. The vented version (ALV) provides automatic compensation for barometric pressure changes. Thermistors are included to measure temperatures.
| Specifications | |
|---|---|
| Standard Ranges¹ | 4500S | 350, 700 kPa; 1, 2, 3 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 Range² | −20°C to +80°C |
| Length × Diameter | 4500S | 133 × 19.1 mm |
¹Piezometers with a range of 350 kPa and higher are capable of reading negative pressures to −100 kPa. Please contact GEOKON for more information. Other ranges available on request.
²Custom, high temperature versions available on request.
For standard high temperature piezometers, please see the Model 4500HT Series.