XW3000 sensing cables detect the presence of liquid hydrocarbon fuel at any point along their length. Installed with a alarm and locating module, the cable senses liquid hydrocarbon fuel (oil) intrusion, triggers an alarm, and pinpoints the location.

The internal structure of the cable is similar to that of the water and acid and alkali sensing cable, but the outer surface of the cable is wrapped by a conductive polymer sheath, and the outermost layer is also a fluoropolymer textile layer, which is widely used in the petrochemical industry, and is of great significance for energy conservation and environmental protection.

Distributed sensing

XW3000 sensing cables provide distributed leak detection and location over a wide range of areas. The cable is available in a variety of lengths to provide as much coverage as needed.

Design flexibility

XW3000 sensing cable can be supplied with factory-installed plastic connectors that plug together. The measuring circuit does not depend on the conductivity of the leaking liquid. Therefore, the same cable can detect various types of liquid hydrocarbon fuel without any special design consideration or calibration. The cable is designed for the leakage detection of various liquid hydrocarbon fuels and widely used for leakage detection of equipment area, pipeline, storage tank and trench. The cable is small, lightweight, and flexible, allowing easy installation.

Advanced technology

The conductive-polymer technology and fluoropolymer construction make XW3000 sensing cable mechanically strong and resistant to corrosion and abrasion. The cable is constructed of two sensing wires, an alarm signal wire, and a continuity wire embedded in a fluoropolymer carrier rod. The alarm module constantly monitors the sensing cable for continuity.

Working Principle

When the sensing cable is in contact with liquid hydrocarbon fuel, it penetrates into the conductive rubber layer through the outer textile sheath, making it shrink. The sensing wires originally in parallel with spiral inside are all short circuited because they shrink close to the conductive rubber layer (after reaction, they can not be inverted, so XW3000 is a one-time product ), causing the change of current. According to the proportional relationship between resistance and conductor length, the controller can deal with it quickly and provide the specific leakage location.

Cable Characteristics

Cable diameter                             7.0 mm nominal

Conductive rubber layer                      0.7mm

Continuity and signal wires                   2 x 26 AWG with insulation of fluoropolymer

Sensing wires                              2 x 30 AWG with jacket of conductive fluoropolymer

Carrier                                     Fluoropolymer

Technical Information

Abrasion resistance                          >65 cycles per UL 719

Maximum continuous operating temperature     70°C

Maximum exposure temperature               80°C

Breaking strength Cable only:                90 kg

Performance Data

Leak size to alarm                        30 mm maximum at any point along sensing cable

Reaction time                             At room temperature of 20°C: gasoline (15 minutes),

#1 diesel (1 hour), #2 diesel (2 hours), xylene (30 minutes)

Precautions

eq \o\ac(○,1)1Sensing cable should be kept dry and clean during installation.

eq \o\ac(○,2)2Please pay attention to the pin sequence of male and female connectors during the docking process of the sensing cable, insert it slightly in line with the hole position, and then lock the screw ring clockwise (unlock it anticlockwise).

eq \o\ac(○,3)3Sensing cable laying area should avoid electrostatic interference.

eq \o\ac(○,4)4Sensing cable is is a one-time product, please replace it in case of leakage alarm.