This piezometer pressure cell uses piezoresistive sensors. They can have steel or ceramic membrane; piezometers are available in synthetic material for use in hostile environments, such as the leachate in landfill sites. They are available with different scales and different operating characteristics. Piezometers with integrated dataloggers are also available.
The datalogger can be included either in the body of the sensor or externally, connected to the instrument via cable. For each measuring range, piezometers with different accuracies are available.
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Applications
Electrical piezometers are mainly used for the measurement of water levels, with the possibility of remote transmission of detected data.
Applications include:
- Dams
- Landslides
- Probe holes
- Wells
- Diaphragms
- Geotechnical, structural and hydrological monitoring
Deep measurements in:
- Aquifers
- Piezometric wells
- Sewage Plants
- Tanks
- Lakes and rivers
- Water treatment plants
- Landfills
- Various
Features and Benefits
- Piezoresistive measuring element
- Wide range of scales
- High resolution and sensitivity
- Excellent sensor speed response
- High reliability
- Stainless steel case, fully watertight
- On request, housing in titanium or in other material
- Anti-corrosion
- Compact design
- Versioni per misura livello relativa o assoluta
- Measures in relative or absolute pressure
- Fluid temperature to 150 ° C (on request)
Technical Features
| Measuring Range | From 1 to 300 meters of water column |
| Precision | ≤±0.25%F.S.; ≤±0.1%F.S.; ≤±0.05%F.S.; |
| Overcharge | 3 x F.S. |
| Thermal Drifts [± %FS/°C] – Zero: 0…+70°C – Span 0…+70°C |
0.06…0.02 0.02 |
| Long Term Stability (1 year) | < 0.2% FS for ranges > 1 bar 4 mbar for ranges 0.5 < 1bar |
| Operation Temperature | -5….+50°C |
| Fluid Temperature | -5….+50°C |
| Power Supply | 9….30 Vcc |
| Output signal | 4-20mA |
| Pressure Sensor Material | AISI 316L |
| Material | Stainless steel 316 (titanium upon request) |
| Cable Material | PUR/ PUR with compensation tube |
Accessories and related products
| DL | Datalogger with or without integrated modem for data transmission |
| Compensation Cable | For absolute measurements of piezometric pressure |
| Junction Boxes | Available in different models for the connection of different instruments |
| Multipolar Cable | Available with different conductors for the connection of different sensors to one cable |
| DEC 5 | Portable Readout Unit |
| DEC 3000 | Portable Datalogger |
| CUM 3000 | Multichannel Datalogger |
| MUX | Multiplexer for the connection of different sensors to the datalogger |
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