The sensor has been designed to detect the presents of oil or any non-conductive liquid including fuel oil, diesel etc. and energise an internal relay to provide a signal to existing alarm systems, Building Management Systems or SMS messaging systems.
The sensor as standard includes a Stainless Steel floor mounting bracket and on request can be fitted with a wall mounted bracket.
The Sensor includes two liquid detectors one looking for conductive liquids (water) with the other looking for non-conductive liquids (fuel oil etc. ) using an optical sensor. The mode of operation for the optical sensor is the principle of total internal reflection. An LED and photo-transistor are housed in a plastic (Polysulfone) dome. When no liquid is present, light from the LED is internally reflected from the dome to the photo-transistor. When a liquid covers the dome, the effective refractive index at the dome-oil boundary changes allowing some light from the LED to escape. Thus the amount of light received by the photo-transistor is reduced indicating the presents of a liquid. The conductive sensor looks for water by using bi-directional DC in both sensors to stop electrolysis of the electrodes.
Housing type: ABS plastic
Size excluding bracket: 75mm High x 38mm diameter
Input power: 12 to 24 VAC or 12 to 24VDC
Power Consumption: 30mA @ 24VDC
Connections to Sensor: 3 metre long 4 core signal cable
Relay contact: Normally Open , (close in alarm ) 1 amp 30VDC volt free contact
More information about personal data can be found here!