Resistive Piezometers And Pressure Transducers
The Resistive Piezometers And Pressure Transducers also called semiconductor piezometers or strain gauge piezometers, are very accurate pressure transducers suitable for high frequency readings and short term applications. Their robust 4-20mA output signals are easy to read and automate with OMNIAlog and suitable for long-distance transmissions. They can be connected to seismic dataloggers for monitoring rapid changes in pore-water pressure such as those produced by earthquakes.
| Model type | piezo-resistive piezometer with LAE filter and or with HAE filter |
|---|---|
| Available full scales (FS) | 200 kPa, 500 kPa, 1.0 MPa, 2.0 MPa, 5.0 MPa (29 psi, 72.5 psi, 145 psi, 290 psi, 725 psi) |
| Overload | 1.3 x FS (200 kPa range) 2 x FS (for all other ranges) |
| Sensitivity | 0.01% FS |
|
Total Accuracy |
< ±0.25% FS |
| Signal output | 4 - 20 mA current loop |
| Electric supply | 12 -40 V DC |
| Temp. operating range | -20 to +80 °C |
| Temperature sensor | built-in thermistor, added on request |
| Material | stainless steel |
| Dimensions | Ø 27 mm (1.1”), length 193 mm (7.6”) |
| Weight | 0.5 kg (1.1 lbs) |
