Gas detector RMLD

methaneCH4laser

TDLAS Sensor RMLD Remote Laser Methane Detector CH4 LNG LPG Digital Methane Detector The HEATH Remote Methane Leak Detector (RMLD) is a highly advanced technology, capable of detecting methane leaks from a remote distance. The RMLD is the first of a new generation of leak survey instruments that will greatly improve the productivity and safety of leak survey. With the RMLD it is now possible to survey areas that are hard to reach or not easily accessible. The RMLD does not have to be within the gas plume because it uses laser technology known as Tunable Diode Laser Absorption Spectroscopy. As the laser passes through a gas plume, the methane absorbs a portion of the light, which the RMLD then detects. This technology makes it possible to detect leaks along the sight line without always having to walk the full length of the service line. Detection Method Tunable Diode Laser Absorption Spectroscopy (TDLAS) Measurement Range 0 to 99,999 ppm-m Sensitivity 5 ppm-m at distance from 0 to 50 ft (15 m) 10 ppm-m or better from 50 to 100 ft (15 to 30 m) Detection Distance 100 ft (30 m) nominal. Actual distance may vary due to background type and conditions Beam Size Conical in shape with a 22” width at 100 ft. (56 cm at 30 m) Detection Alarms Modes Digital Methane Detection (DMD): Audible tone relative to concentration when detection threshold exceeded. Adjustable Alarm Detection Threshold from 0 to 255 ppm-m Pure Tone:Continuous audio tone relative to concentration