Innovation for mobile pipe network inspection: LaserGasPatroller LGP 800

economical – laser-based – fully automatic

The LGP 800 measurement unit is built into a very compact 19" metal enclosure with only six rack units. It can be mounted anywhere in the vehicle. All components are tested under field conditions, particularly in respect of vibration, which is an everyday hazard. In existing vehicles the Portafid LP Leakplotter module can be replaced easily and at very low cost with the new LaserGasPatroller LGP 800, allowing existing Leakplotter vehicles to remain in use.

The LGP 800''s sensor is based on the principle of Tunable Diode Laser Spectroscopy (TDLS). This method determines the concentration from a measured absorption of the gas in question. The radiation source is a laser diode, which is why TDLS is classed as a laser spectroscopy technique. This laser measuring cell measures methane only, so there is no interference from other gases.

The current consumption has been optimised so that the LGP 800 can be used in any type of vehicle. With a current consumption of just 2 A, the system can be operated from a standard car battery. This means that electric vehicles can also be used.

With three external outputs, a rotating warning light or a siren, for example, can also be connected via the SeCuRi® SAT software.

Gas sample module

With a standard vehicle width the gas sample is drawn in via eight bell probes, which ensure an optimum detection of natural gas components in the air. A heavy-duty pump efficiently transfers the gas sample to the measuring system.

Pipe network inspection from a moving vehicle is becoming standard practice worldwide, with inspections on foot limited to areas which are not accessible by vehicle. For this international market the software offers multiple language options and can be customised accordingly.