The Hydrostatic Profiler enables manual measurement of settlement in foundation soils, embankments, landfills, and similar structures. A guide tube is installed horizontally along the longitudinal and/or transverse axis of the area to be monitored.
The profiler unit is inserted into this guide tube and measures hydrostatic pressure at each point via a high-precision pressure transducer located within the device. This pressure is referenced against the liquid level in an external reservoir tank. By collecting measurements at multiple points over time, the system accurately determines variations in the elevation of the guide tube, allowing for precise assessment of settlement or subsidence across the monitored structure.
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Applications
Hydrostatic profiler consisting of:
– Piezoresistive level sensor, measuring range 5 meters water column, 4-20 mA output, linearity: ±10mm, repeatability: ±10mm. Operating temperature 0°C to 50°C (lower for liquids with antifreeze).
– Fully submersible stainless steel (316L) housing, diameter 30 mm, length 150 mm;
– 100 ml of PUR immersible electric connection cable and 100 ml of nylon 8 X 6 mm hydraulic hose assembled inside an additional PUR protective sleeve; on request available with calibrated lengths as required.
– Reading system with liquid crystal display, 4-20 mA input, 12 bit analog/digital converter, 0.2% FS accuracy, rechargeable internal battery, complete with batteries.
– Robust stainless steel cable reel, with integrated reading system and reference reservoir complete with de-aerated liquid.
– Tube length 150 metres.
Characteristic and Benefits
- Portable instrumentation
- Ease of use
- Robustness
- Practicality
Measurment Principle
A high-resolution, small-field piezometer, connected to a closed hydraulic circuit, measures the hydrostatic load acting on this as a function of its position relative to a fixed reference tank. The instrument, run inside a pipe adjacent to the surface (generator) to be controlled, continuously measures the vertical distance from an external reference point (head of the liquid in the reference tank).
Technical Specifications
Welded Case
| Signal | 4-20mA |
| Linearity | ± 10mm |
| Precision | ± 10mm |
| Repeatability | ± 10mm |
| Operating temperature | 0°C ÷ 50 °C (<0°C with antifreeze liquid) |
| Cable length | Standard 100 meters, others upon request |
| Reading system | Converter 12 bit |
| Power supply | Rechargeable battery with charger |
Technical Assistance
If you have any requests or questions about our instruments or if you have special needs that require different solutions from the standard, please contact us. Our team will provide all the necessary information and will be very happy to work with you to study, develop and customize instruments and solutions suitable for your specific needs.
All information in our datasheet is subject to change without prior notice.
Please check the datasheet/details carefully and contact Pizzi Instruments for further information