The Standpipe piezometer (Casagrande Piezometer ) is used to monitor piezometer water levels in vertical boreholes. The Standpipe piezometer typically comprises two part; at its lowest point is a porous piezometer tio, connected to the tip is a riser pipe which continues upwards out of the top of the borehole.
The Hydraulic Piezometer is designed for accurately measuring pore water pressures in fully or partially saturated soil and rock. The system comprises a porous ceramic piezometer tip sealed into the measuring horizon and connected to a remote measuring position via two nylon tubes filled with De-Aired water.
The Pneumatic is designed for accurately measuring pore water pressure in fully or partially saturated soil and rock. The Pneumatic piezometer tip comprises an integral porous element with a high quality diaphragm transducer, installed either down a borehole, by burying in fill or by pushing into shallow depths in soft soil.
Water level Indicators are used to measure the depth of water in standpipes, wells and boreholes. The indicator comprises a stainless steel probe connected to a flexible graduated tape which is wound on to a hand reel. The reel houses a transistorised switch circuit, audio and visual indicators and a battery.
The standard vibrating wire piezometer provides accurate measurement of pore water pressures in fully or partially saturated soil. The transducer is made from high quality 316 grade stainless steel and designed to handle pressure ranges from -50 to 4000 KPa.
The V-Notch weir system is used to measure water flow volume. It is used predominately in dams, open channels such as streams and tunnels. The system comprises a stainless steel plate with a notch profile chosen to suit predicted flow rates.
The 4-20 m A Piezometer is designed for accurately measuring pore water pressures in fully or partially saturated soil and rock. The transducer is fitted with a sintered stainless steel filter disc and is available as a vented (gauge) peizometer or a non-vented (absolute) piezometer.
The MEMS Piezometer modern logger combines a high copacity GSM/GPRS enabled datalogger with a small diameter MEMS piezometer for use in fully or partially saturated soil and rock.