Geonor's electric piezometers are based on the oscillating string principle. More than 50 years of experience have shown that the meters are stable and have a long service life. They can be delivered either for pressing into soft masses or for immersion/burial.
Both types can be delivered with armoured cable (FERE), or with our standard ventilated cable.
If armoured cable is used, the sensor will receive an "A" after the version designation, so that M-605 is the standard model for standard cable, and M-605A is intended for FERE cable.
The piezometer for armoured cable can also be equipped with a temperature sensor. The piezometer has the same diameter as the extension pipes, eliminating the risk of leakage along the drill string.
The M-603 is a special version of the M-600, which is open to the atmosphere and equipped with a rubber diaphragm above the pressure diaphragm. Back pressure is applied using compressed air to relieve the pressure diaphragm.
This will balance against the pressure during pressing down and thus it can be pressed down faster.
The back pressure can also be used to relieve the diaphragm for reading the zero point frequency.
Available on request for standard cable and for maximum 6 bar.
The piezometer has been further developed from the M-206 and can be pressed down without pre-drilling, normally to a depth of approximately 30 m.
Designed for Ø32 mm extension pipes. Adapters for 1" water pipes can be supplied.
P-430 is a steel reinforced 2-pair cable. It is specially designed to withstand high tensile and pressure loads and is protected against water ingress should the sheath be damaged.
Standard 1-pair cable with screen, intended for use where the cable is not exposed to high mechanical stresses.
Ventilated cable for M-603 is available on request.
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