FM7745 Fuel Leak Detection Standard Products

Naftosense is pleased to announce the approval for FM-7745 Fuel Leak Detection for a line of controls and sensors that can detect refined fuel leakage in under 30 seconds. Naftosense is the only manufacturer with a re-usable rope style sensor that can reliably detect small leaks in that timeframe (under 30 seconds).

This document highlights the specific Naftosense products (brief descriptions and downloadable datasheets) that adhere to the FM-7745 Fuel Leak Detection standard.


FLD-HSC-TL High-Reliability Hydrocarbon Sensor

The FLD-HSC-TL is a high-performance passive hydrocarbon detector designed specifically for detecting the unwanted presence of a wide range of liquid hydrocarbons. This multiplexed sensor cable provides quick reaction to light and heavy hydrocarbons and can be used in outdoor environments. The detected hydrocarbons are primarily gasoline, diesel, jet fuel, motor oils, lube, and transformer oils, etc. The FLD-HSC-TL sensor cable is offered as factory- assembled modular sensor with heavy-duty waterproof connectors (variant -C), or as fixed-length encapsulated sensor string with 10-ft leader cable.

The sensor is specially engineered for reliable operation in both indoor and outdoor conditions. The waterproof connectors of -C version allow the sensor to be immune to short-term immersion in water. The encapsulated version is designed for long-term immersion in water in demanding outdoor conditions. The semi-conductive sensor material is extremely durable and can withstand long-term exposure to temperatures in excess of 212°F/100°C. The sensor cable is UV resistant, anti- static, anti-termite and anti-rodent and can be used in tropical applications.

The sensor cable contains all the wiring necessary for long-range applications and for the connection in series of several sensors to the same Naftosense acquisition module. FLD-HSC-TL allows up to 3 sensor sections to be connected to the same module.

When used for applications in hazardous areas, the sensor cable shall be wired to an intrinsically safe acquisition module, or alternatively through a Zener barrier to a sensor module or controller installed in the safe zone. Please contact Naftosense for additional information.

Features and Benefits

  • Detects very quickly leaks of combustible liquids in a very wide temperature ranges in under 30 seconds!
  • 10-Year Factory warranty on Sensors that are cleanable and reusable after contamination
  • Insensitive to vibrations, methane, water, salt fog
  • Non affected by continuous exposure to sun light
  • Fully passive sensor – suitable for installations in hazardous locations
  • Reduced maintenance and easy troubleshooting

FLD-O2W-SP Sensing Probe for Oil-On-Water Leak Detection

FLD-O2W-SP is a fully encapsulated high-performance sensing probe designed for detecting leaks of refined products or crude oil floating on water surface in extreme environmental conditions. This probe can also be used as cost-effective zero-false-alarms hydrocarbon fumes detector. UV/ozone resistant, it is specially engineered for reliable operation during long-term immersion in water and in icing conditions and is suitable for polar applications. The maximum length of sensor probe is limited to 48-in / 122 cm. The sensing probe can be wired to the acquisition module through an optional jumper cable with a maximum length of 300ft. / 90m. Advanced measurement techniques and data treatment algorithms are used by Naftosense monitoring modules to provide quick detection in a very wide temperature range. The sensor is reusable and easily detachable for cleaning.

FLD-O2W-SP probe is designed to be used exclusively with acquisition modules or intrinsically safe field boxes offered by Naftosense providing industry-standard analog outputs, dry contacts, or serial communication protocols for flexible integration with third-party monitoring panels or PLC.

FLD-O2W-SP is a passive simple element and is safe for installations in hazardous locations when connected to intrinsically safe field box or wired through an approved Zener barrier to acquisition modules, alarm panels or other monitoring equipment installed in the safe area. Please contact Naftosense for additional information.

Features and Benefits

  • Detects very quickly leaks of combustible liquids in a very wide temperature ranges in under 30 seconds!
  • 10-Year Factory warranty on Sensors that are cleanable and reusable after contamination
  • Dynamic leak alarms of the sensors relative contamination can be seen on display models
  • Fully passive sensor - suitable for installations in hazardous locations
  • Able to detect quickly fumes/vapors diffused in the soil or above ground

FLD-SMC High-Performance Leak Detection Controller

FLD-SMC is a high-performance all in one monitoring controller built into one budget conscious package. It is designed for detecting leaks of refined petroleum products and solvents in extreme environmental conditions when installed with approved sensors FLD-HSC-TL and FLD-O2W-SP. The device is a wall-mounted standalone leak detection controller. The maximum sensor length is limited to 150-ft/45 m per FLD-SMC distributed in three separate zones.

These leak detection controllers (FLD-SMC) offer industry-standard output communications:

  • Modbus RTU
  • Modbus TCP
  • dry contacts (2 SPDT Relays)
For classified locations applications, the sensor cables and the sensor probe will be wired to the controller through a Zener barrier, with FLD-SMC module installed in an area approved enclosure.

Features and Benefits

  • Detects very quickly leaks of combustible liquids in a very wide temperature ranges in under 30 seconds!
  • 10-Year Factory Warranty on controls and sensors
  • Provides indication of the leak magnitude (LCD and Modbus versions only)
  • Able to detect the vapors from refined fuels
  • The only FM7745 approved leak detection controller with adjustable alarm threshold allowing you the most rapid alarm to leaks

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