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Liquid Leak
Sensors

ATEX Fuel/Oil Leak Sensor

Leak Detection in Hazardous Areas

The ATEX Fuel Oil Leak sensor – type AOSP has been designed for hazardous environments and is ATEX, UKCA, IECEx certified. The sensor gives a NAMUR output and will detect the presence of any liquid including petrochemicals, water, fuel oil etc.

Certified for Hazardous Areas

The AOSP sensor has: II 1 Ex ia T4 Ga (-30 to +80°C) and Ex ia IIC T4 Ga (-30 to +80°C) ratings.

This indicates that the equipment is designed to be intrinsically safe for use in environments where there is a risk of explosion due to the presence of flammable gases, vapors, or mists.

Effortless Installation of ATEX rated leak sensor

Installation of the sensor is easy. The ATEX rated sensor has 316 Stainless Steel bracket with a 0-5mm height adjustment and a10m long interface cable. 

Galvanic Barrier

The ATEX Fuel Oil leak sensor has been designed to be used with our Galvanic Barrier. This ensures that safe communication can occur within explosive areas. The unit has three-way isolation that isolates high DC (direct current) levels from the sensor and also preventing short circuit hazards.

If an error occurs in the unit, the LED (light-emitting diode) indicator will illuminate to let you know. There’s also an indicator that signals supply voltage and switching state, making it simple to use.

Illustration showing how the NAMUR sensor can be connected with a Galvanic barrier.

Further Reading

For a deeper dive into ATEX ratings and NAMUR sensors, explore our detailed article: “ATEX Oil Leak Sensor.”

Image of the AOSP ATEX rated leak sensor
Picture of the AOSP ATEX rated leak sensor
Image of the Galvanic barrier.
Picture of the Galvanic Barrier

Detailed description of the AOSP

  • Output Type – NAMUR
  • Power Supply – +5VDC to 12VDC (+8.2V nominal)
  • Supply Current – Liquid Detection >3mA; dry <1mA
  • Sensor Tip: Grilamid
  • Operating Temperature: -30 to +80°C (-22°F to +176°F)
  • Storage Temperature: -40 to +80°C (-40°F to +176°F)
  • Pressure: Maximum 32 Bar, 464 psi
  • Housing Material: 316 Stainless Steel

Detailed description of Barrier

  • Input Signal – NAMUR
  • Power Supply – +15VDC to 30VDC
  • Max Current – 10mA
  • Barrier Type: Galvanic
  • Operating Temperature: -20 to +60°C (-4°F to +176°F)
  • Max Contact Voltage: 125VDC (0.2A), 253VAC (2A)
  • Pressure: Maximum 32 Bar, 464 psi
  • Mounting: Din rail mounting
  • Relay contacts are gold-plated to prevent corrosion


AOSP sensor information


AOSP installation manual

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