geologger^®   is based on  detecting and evaluating electrical distribution patterns on plastic or other electrically resistant linings. This is achieved by using a parallel arrangement of electrode chains in conjunction with the inherent conductivity of the layers of earth, water or other naturally conductive elements separated by the lining.

Electrodes placed on top of the lining system generate an impulse which “charges” the material contained by the liner. The geologger® system measures the potential difference between impulse above the liner and the earth under the liner, creating a map which shows where a breakdown in the potential difference has occurred, thus indicating damage.
Location of damage, or leakage, actually takes place via multi

-point linear electrodes (MPLE) which are installed underneath the lining. Each standard MPLE chain consists of 20 measuring points, which, when applied with other, regularly spaced MPLE chains, forms a sensing grid capable of precisely locating damage in the lining system.  These chains are connected to a computer which measures and evaluates the signals transmitted by the sensors to determine if any of the signals are of sufficient magnitude and constancy to indicate leakage. If the computer determines that leakage is indeed present, it triggers an alarm and indicates the exact location of the problem.

Testing can be performed at any time after installation with the surety that the sensing grid will always locate damage with precision.