TTK FG-ODC+ Hydrocarbon Sense Cables


  • Very high Sensitivity
  • Very Fast Response with Light and Middle Distillates
  • Sensitive to Heavy Oils and Hydrocarbon Vapors
  • Leak Location on Section Length
  • Pre-connected Cable
  • Suitable for Explosive Area Service
  • Insensitive to Water and Inorganic Pollutants

TTK FG-ODC+ is a digital sense cable for detection and location of liquid hydrocarbons and liquid insoluble in water and their vapors, along the entire length of 3 metres. It allows multiple leak detection and location thanks to independent digital addressing, enabled by an embedded microchip in each FG-ODC+ sense cable. The sensor element is optimized for a very fast response with light to middle distillates. It is sensitive to heavy oils such as conventional crude oils, dilbit/synbit, as well as to hydrocarbon vapors. Can be installed in a humid environment, as it is insensitive to water and inorganic contamination.


  • Standard length (3 m) sensor sections or long line sections allowing optimised system architecture.
  • Microcontroller embedded in each FG-ODC+ sense cable allowing the independent digital transmission to the alarm unit.
  • Standard length sense cable provided with the built-in plug-socket connector.
  • Structure of the sense cable comprising a silicon sensing wire, a continuity wire, a communication wire (proprietary bus) and the power supply wires. Protective external PE braid built on the cable.
  • Intrinsically safe – can be used in classified areas: Ex ia IIB T4 Ga (IECEx “Zone 0”).


  • Reliable detection:
    • Sensitive to heavy oils and vapors.
    • Insensitive to water, inorganic pollutants and external loads (pressure).
  • Very high sensitivity: examples of detection time: Diesel at 3-5 minutes (*), Gasoline: less than 1 minute (*).
  • Detects and locates hydrocarbon leaks on the section length.
  • The same unit FG-NET can be connected to FG-ODC+ sense cables and mixed with water or acids/bases sense cables at the same time.
  • Easy to install and remove: standard FG-ODC+ cables pre-connected with male / female connectors.

Note (*): depending on liquid composition and leak conditions


Cable nominal diameter 10 mm
Connector nominal diameter 16 mm
Embedded (Long Line) connection nominal diameter 16 mm
Cable nominal weight (without connectors) 7 kg / 100m
Min. bending radius 100mm
Max. Pressure 3 bar
Min. Max. working temperature  -30°C ≤ Tamb ≤ +100°C
Direct burial Possible
Maximum tensile strength (incl.connection) 40 kg
Expected life span (at working conditions) >10 years
Explosive area classification Ex ia IIB T4 Ga (ATEX “Zone 0”)
Connector protection index classification  (DIN/EN/IEC60529) IP 68

Identification Codes

FG-ODC+ 3 Addressable Oil Sensing Cable in 3m with Connectors
FG-ODC+ Lxxyy/xxyy/xxyy Pre-Assembled Addressable Oil Sensing Cable with connectors
xx =length of sections, yy = number of sections
i.e.: FG-ODC+L0304: Pre-assembled 4 lengths of cables FG-ODC+L : 4 sections of 3 m
FG-DOD KIT Kit including FG-DOD interface box + FG-CLOD leader cable + FG-TMOD end plug
FG-CLOD Leader Cable, on ‘OD Bus 8771’
FG-TMOD Digital End Plug on ‘OD Bus 8771’ for FG-ODR Cable
FG-NOD ‘N’ ‘OD Bus 8771’ Neutral Cable ‘N’ (30, 15, 7, 3, 1m) With Connectors
ES-OD 40 Tags for Oil Cable
CF-OD50 50 Hold-down Clips with adhesive for Oil Cables




TTK FG-ODC+ Hydrocarbon Sense Cables_DpstarGroup