NAG
TD-107
Fluorescence Oil Content Monitor
The TD-107 Fluorescence Oil Content Monitor is the world's only 15ppm bilge alarm that can reliably detect and prevent illegal oil discharge from ship oily water separators.
The TD-107 Fluorescence Oil Content Monitor (OCM) is a 5 ppm or 15 ppm bilge alarm for oily water separators based on fluorescence detection technology. Fluorescence makes the TD-107 immune to interferences by turbidity or particles/sediments in the bilge which impact competing "light scatter" oil content monitors. Because silt / algae / iron oxide and other particles do not fluoresce at oil's wavelength, they cannot interfere as a 'false positive' high alarm that will keep the oily water separator in recirculation mode without ever pumping down the oily waste holding tanks.
Principles of Fluorescence Detection
Marine oils emit light at specific wavelengths when they are irradiated with ultra-violet light. This molecular effect is called fluorescence and is an extremely reliable indicator of oil concentration in a bilge oily water separator process stream.
There are only two primary methods of oil detection for marine OWS bilge applications: Light Scatter and Fluorescence. Light Scatter devices estimate oil concentration based on the amount of scattering of light rays in a bilge stream. However, this method has no way to discriminate between a particle of rust or a particle of oil causing subsequent scattering. Consequently, a dirty bilge will constantly yield false high alarms and never allow the OWS to process the waste overboard.
Fluorescence technology is the only way to detect oil in either droplet or dissolved form. It has the further advantage that it is immune from solids or other particles in the bilge water process stream.
