Contamination of water courses by visible oil is a problem that requires fast, reliable detection to prevent damage to either the local environment or a water treatment process. If oil is allowed to enter a river then wildlife can be harmed, if the oil then enters a drinking water plant, damage can be caused to the processing system or more critically the quality of the drinking water can be affected.
Early warning of a problem allows remedial action to be taken either by automatically shutting down the intake to a process or by raising an alarm calling for manual intervention. The 7300w² monitor can also be connected to pollution prevention equipment such as oil dispersants or oil absorbing mops, booms, and skimmers.
The OilTechw² sensor can be deployed in any application where the surface of the water is relatively calm, the system will react rapidly to both partial and complete films of oil on the water surface. The measuring system is highly stable and only needs occasional validation to ensure reliable operation.
The unsinkable floating sensor has a dual hull designed to channel any oil passing through the centre of the float so that it is presented to the detector. The non-contact infrared sensor emits light that is reflected from the water surface, any oil that is present increases the amount of light reflected and this is then converted into the desired output signals. The float is supplied with two fixing cables and a weight to keep it stationary and correctly orientated.
|Dimensions||150 x 590 x 600 mm (H x W x D)|
|Weight||2.2 kg (including 10 metres of cable)|
|Enclosure Material||Fibre Glass coated Float with Black Acetal Transmitter Housing and Stainless Steel Fittings|
|Cable Entries||Integral Gland Gland|
|Cable Type||4 Core, 2 Twisted Pair, 5 mm O/D Polyurethane Coated|
|Cable Length||10 metres standard, 100 metres maximum|
|Service Requirement||No Routine servicing required
The sensor is not in direct comtact with the water and therefore routine cleaning is not necessary, however due needs to be paid to the optical surface after any pollution event.
|Operating Temperature||0 to 60ºC|
|Interface to Monitor|
|Power Supply||12 VDC from Monitor|
|Sensor Output||ModTechw², RS485|
|Measurement Principle||Light Back Scatter|
|Wavelength||860 nm Infrared|
|Flow Rate||The sensor must be placed in a stable flow, avoiding turbulence or surface disturbance|
|223924||OilTechw² FLT Sensor (Cable Length: 20 metres, Tether Length: 8 metres)|