PIEZOMETER
Model no. IGI - 1401 & 1501
Innovative series IG-1400/1500 piezometers are used to measure ground water elevations and pore water pressures in bore holes, embankments, concrete structures, pipe-lines, wells, mines, tunnels etc. Model IG-1501 has the filter replaced with a threaded adapter to permit it to be coupled directly to pressure lines. Provision of gas discharge tube protects the sensor against surge and lightning.
SPECIFICATIONS :
| Standard Ranges | 3,5,7,10,20,35,50 (Higher ranges on request) |
|---|---|
| Non-linearity %fs | 1%fs; 0.5%fs optional |
| Material (Outer Body) | Stainless steel |
| Operating Temperature | -10 to 70°C |
| Coil Resistance | 140 – 160 Ohm @ 25°C |
| Thermistor | YSI 44005 or equivalent (3k Ohm @ 25°C) |
| Surge Arrestor | Citel 90V Gas Discharge tube |
| Filter | High and low air entry Ceramic |
| Dimension | 20mm dia x 145 mm length |
| Cable | 1m, 4 core shielded. |
TYPICAL APPLICATION :
- Controlling water pressure during consolidation by continuous monitoring.
- Prediction of slope failure and remediation.
- Design for lateral earth pressures.
- Design for uplift pressures and buoyancy.
- Monitor seepage, determine phreatic line and verify models of flow.
- Monitor surface water run-off.
- Monitor rate and direction of flow of contaminated water.
- Monitor encroachment of salt water into fresh water aquifers.
OUTSTANDING FEATURES :
- Unprecedented sensitivity, long term stability and reliability.
- Isolation of the sensor assembly from the effects of total stresses acting on the body of the piezometer.
- Robust and sturdy construction.
- Slim-line design.
- Corrosion resistant option available for coastal applications.
- Provision of thermistor for temperature measurement.
- Provision of gas discharge tube for lightning and surge protection.
- Suitable for remote reading, scanning and Data logging.
- No effect of cable length on performance of the sensor.