How it works

How Leakwise Systems Work?

A Leakwise system consists of a sensor and a controller.

The sensor is a floating device that sits flat on water surface. It uses a patented Electromagnetic Energy Absorption Technique. The energy is introduced to the upper layer of the water.

Since water absorbs more electromagnetic energy than hydrocarbons, changes in the absorption rate of the water indicate the presence or buildup of a hydrocarbon layer.

The sensor continuously sends the measured signal to the controller, which in turn determines if there is a presence of hydrocarbon and indicates its’ thickness. The controller then activates your chosen alerts and controls according to easily adjustable sensitivity settings. Leakwise sensors can detect the presence of as little as 0.3 mm of hydrocarbon on water. Detection is immediate upon oil contact with the sensor, which fully complies with the 30 seconds requirement of FM Class 7745 standard. All Leakwise sensors can distinguish between water, hydrocarbon and no-liquid condition.

Some Leakwise sensors can be used to detect oil spills in applications where the sump area may be dry. Oil / Water emulsions will also be detected. Leakwise oil thickness sensors are optimized for linear measurement of thick oil layers on water up to 200 mm.

Leakwise controllers display system status on the front panel, and interface to user’s control center via relay contacts, 4-20mA, Modbus and wireless.

Principle of Operation

LEAKWISE sensors use a patented, high-frequency Electromagnetic Absorption Technique to detect oil on water. Each floating sensor houses a high-frequency electromagnetic energy transmitter and a receiving antenna which continuously monitor the liquid surface.

Since water absorbs more electromagnetic energy than hydrocarbons, changes in the absorption rate of water indicate the presence or buildup of hydrocarbons.

The LEAKWISE sensors not only enable reliable detection of hydrocarbons, but also provide valid indications of the thickness of the hydrocarbon layers and the percent of water in oily emulsions.

LEAKWISE sensors can also be used to detect the interface between any two immiscible liquids with different absorption rates. No other oil sheen monitoring system does this.

Technology Demonstration

applications

Detect oil leaks at pump stations, shut-off valves, and containment sites to prevent discharge into sensitive areas...
Identify leaking tanks and protect groundwater with early detection at drain exits and monitoring wells...
Detect product leaks or drainage failures by monitoring water discharged from floating roofs before treatment...
Monitor oil in sumps, separators, cooling systems, and condensate lines to ensure safe and compliant operation...
Prevent discharge of turbine, transformer, or hydraulic oil by monitoring sumps, retention tanks, and dam gates...
Continuously detect transformer oil leaks in unmanned substations and reduce costly water treatment operations...
Detect oil spills in tunnels, ports, airports, and rail systems before discharge into public water infrastructure...
Detect hydrocarbon seepage in wells earlier and more reliably than manual sampling or traditional sensors...
Track oil layer thickness and automate skimming for efficient recovery in remediation and well closure sites...