Definition
Visual leak detection is the recognition of liquid appearing where it should not be - under a tank, beside a pump, on the floor around an installation. The system reacts to a change in the appearance of a surface, not to the chemical composition of a substance.
Where it works
Best where the background is constant and uniform: floor under a tank, a drip tray, the area around a pump. A change in such a surface is distinct and easy to separate from people moving.
Catching a spill early limits the consequences: less substance to clean up, lower slip risk and lower risk of liquid reaching drainage.
What it will not catch
It will not identify the substance or its concentration. Gases, vapours and transparent liquids resembling the surface require sensors, not cameras.
It also does not replace gas detection systems where those are required by regulation. It is a complementary layer covering what is visible.
Frequently asked questions
Will it detect a water leak?
It depends on the surface and lighting. Water on a dark matt floor is visible; on a wet or reflective one it is much harder.
Can it tell oil from water?
Not reliably. The system signals that liquid has appeared; identifying the substance is for the operator.
Does it work at night?
Yes, with the area lit. Detection is image based, so it does not work without light.