GMI Remote Methane Leak Detector (RMLD)

Includes: Rechargable lithium battery (8 hour operation), battery charger, padded shoulder strap and ergonomic dual strap and belt system, carry case, manual on CD.

Reference 99000

Brand Gas Measurement Instruments (GMI)

The GMI Remote Methane Leak Detector (RMLD) uses state-of-the-art technology to identify methane leaks from a considerable distance. Using the RMLD-IS, it is now possible to monitor areas that are hard to reach or are not easy to access. The use of TDLAS (Tunable Diode Laser Absorption Spectroscopy) laser technology means that the RMLD-IS does not need to be located directly in the gas plume.

The Remote Methane Leak Detector consists of two interactive components; a transceiver subsystem and a signal processing/user interface controller. The transceiver has two lasers; an infrared laser beam that is non-visible and is continuously on while theunit is turned on. The green spotter laser is similar to those used for presentation pointers and is turned on by the operator by depressing the trigger button.

When the infrared laser beam is transmitted from the launch port some of the laser light is reflected by a normal background such as brick,
concrete, grass, etc., to the detector. This reflected light is collected and converted to an electrical signal that carries the information needed to deduce the relative methane concentration. This signal is processed so that methane concentrations can be reported in parts per million meter or ppm-m.

FEATURES

Ultra fast response for Methane leaks from Gas Distribution Networks.
Tuneable Diode Laser.
Visible Spotter laser.
Locates Methane up to 30 metres.
Methane Specific (no false positive).
Digital Methane Detection (DMD).
Self-Test and Calibration Functions.
Continuous audio tone relative to gas concentration.
Datalogging.

GMI Remote Methane Leak Detector (RMLD)

Detection Method	TDLAS (Tunable Diode Laser Absorption Spectroscopy).
Measurement Range	0 to 99.999 ppm-m.
Sensitivity	5 ppm-m at a distance of 0 to 50ft (15 m), 10 ppm-m or better at a distance of 50 to 100 ft (15 to 30 m).
Detection Distance	30 m (nominal). Actual distances may vary depending on the type of background and other conditions.
Beam Size	Conical beam. width 56cm at 30m.
Detection Alarm Modes	DMD (Digital Methane Detection) Audible tone, relative to concentration when the alarm activation threshold is exceeded Adjustable alarm level from 0 to 255 ppm-m< Pure Tone: Continuous audio tone relative to concentration.
System Fault Warning	Unique audible tone and indication on the display.
Self Test and Calibration	Built-in Self Test and Calibration function verifies operation and adjusts laser wavelength for maximum sensitivity. Test gas cell integrated within carrying case.
Compliance	EMC (EN61000-6-2, EN6100-6-4) pending.
Laser Eye Safety	CDRH, ANSI and IEC IR detection laser – Class I Green spotter laser – Class IIIa: Do not stare into beam or view directly with optical instruments.
Display	Large, easy to read display with backlight (0.75" numeric).
Operating Temperature	0 to +122 °F (-17 °C to 50 °C).
Humidity	5 to 95% non-condensing.
Enclosure	IP54 (protected against water splash and dust resistant).
Weight	4 kg (transceiver 1.3 kg, controller 2.7 kg).
Power Supply	Internal lithium-ion rechargeable battery.
Battery Life	8 hours at 32 °F with backlight switched off (internal battery).