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OilTechw² FLT Oil on Water Sensor

Floating Oil on Water Sensor

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.

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  • Overview
  • General Specification
  • Measurement Specification
  • Ordering Information

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. In addition a range of mounting accessories can be offered to suit the individual requirements of each application.

Physical
Dimensions150 x 590 x 600 mm (H x W x D)
Weight2.2 kg (including 10 metres of cable)
Protection ClassIP68
Enclosure MaterialFibre Glass coated Float with Black Acetal Transmitter Housing and Stainless Steel Fittings
Cable EntriesIntegral Gland Gland
Cable Type4 Core, 2 Twisted Pair, 5 mm O/D Polyurethane Coated
Cable Length10 metres standard, 100 metres maximum
Service RequirementThe 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.
Environmental Data
Operating Temperature0 to 60ºC
Interface to Monitor
Power Supply12 VDC from Monitor
Sensor OutputModTechw², RS485
Measurement Characteristics
Measurement PrincipleLight Back Scatter
Wavelength860 nm Infrared
Flow RateNot affected by flowrate, the sensor must be placed in a stable flow, avoiding turbulence or surface disturbance
Part NumberDescription
223909OilTechw² FLT Sensor (Cable Length: 10 metres, Tether Length: 8 metres)
223924OilTechw² FLT Sensor (Cable Length: 20 metres, Tether Length: 8 metres)

7300w2 Monitor

7300w² Monitor

The core product in the WaterWatch² range - the 7300w² Monitor provides all the user interface and system configuration

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