This piezo is specifically designed for measuring pore water pressure in small diameter boreholes and standpipes. It is made of stainless steel with a built-in thermistor for temperature measurement and surge arrester for protection from lightning. For an easy cable connection a glass to metal solder pin connector is provided. The sensor is hermetically sealed with a vacuum of around 0.001 Torr inside it.
A low air entry value ceramic flat filter is provided with a grain size of 40-60 microns unless specified otherwise.
| Range (MPa) | 0.35, 0.5, 0.7, 1.0, 2.0 |
| Accuracy | ± 0.2 % fs standard | ± 0.1 % fs optional |
| Non linearity | ± 0.5 % fs |
| Over range limit | 150 % fs of range |
| Temperature limit | -20° to 80°C |
| Thermistor | YSI 44005 or equivalent |
| Dimension (Φ x L) | 19 x 155 mm |
GDS has a variety of instruments for hire, these Instruments, Readouts and Dataloggers are available for product hire on a short-term (fortnightly) or long-term (monthly) basis including, but not limited to, the following:
