4-20mA Titanium Piezometer
Applications
The 4-20mA Titanium Piezometer is designed for compatibility with industrial data loggers, the titanium piezometer is used to monitor water levels and pressure. Typical applications include:
- Monitoring pore-water pressures in corrosive environments such as salt water.
- Monitoring rapid changes in pore-water pressure such as those produced by earthquakes.
- Monitoring water levels in pumping tests.
Operation
This piezometer is typically suspended in a well. Signal cable from the piezometer is terminated at a readout station, where it can be connected to a data logger or readout device. Water pressure acts on diaphragm of the piezometer and semiconductor strain gauges bonded to the inside of the diaphragm sense the pressure and output a signal that is proportional to the pressure on the diaphragm. The signal is transmitted to the data logger or readout device via a 4-20mA loop circuit.
Advantages
High Resistance to Corrosion: All metal parts, including the diaphragm, are made from titanium.
High Resistance to Noise: The electronics of the piezometer are highly resistant to electrical noise, such as that generated by pumps.
Compatible with Industrial Data Loggers and Readouts: The titanium piezometer incorporates a 4-20mA transmitter to provide compatibility with standard industrial data acquisition systems.
Suitable for Dynamic Monitoring: The piezometer can be read continously.
For more information
Please download the datasheet and manual for the 4-20mA Titanium Piezometer. They can be viewed and printed with Adobe Acrobat Reader.
4-20mA Titanium Piezometer Specifications
| PRESSURE TRANSDUCER | |
|---|---|
| 20 psi | 56410020 |
| 50 psi | 56410050 |
| 100 psi | 56410100 |
| 250 psi | 56410250 |
| Sensor Type | Diaphram pressure transducer incorporating Micron Technology semi-conductor strain gauges with a 4-20mA output. The builtin temperature device is a 3K ohm thermistor |
| Range | 20, 50, 100, 250 psi |
| Resolution | 0.02% FS with a Campbell CR1000 and a 120 ohm resistor |
| Linearity | ± 0.5 % FS BFSL |
| Compensated Temp Range | 30 to 130°F |
| Over-Range | 2 x rated range |
| Long Term Stability | ± 2% FS/year or better |
| Supply Voltage | 12-24 V nominal supply, 8 V min at the transducer |
| Materials | Wetted metal parts are made from titanium. The filter is polyethylene |
| Dimensions | 0.625" diameter x 5.75" long |
| SIGNAL CABLE | ||
|---|---|---|
| Polyvinyl Chloride Jacket | 50613824 | Shielded cable with four 22-gauge tinned-copper conductors and polyvinyl chloride (PVC) jacket. Two wires are used for the 4-20mA loop circuit. The other two wires are used for the thermistor |
