NOVEL · Product and System Solutions

HEATH RMLD-IS Laser Methane Gas Detector - Natural Gas Survey

Gas Detectors and Industrial Measurement Instruments

Heath Consultants RMLD-IS

Laser-Based Portable Gas Detector Detecting Natural Gas Leaks Remotely

Product Specifications

System Capable of Measuring Natural Gas Leaks Remotely
Quickly and efficiently pinpoints methane leaks from a distance of approximately 30 m in challenging, hard-to-survey terrain without requiring walking along the service line.

Methane Gas Measurement with Advanced Laser Technology
RMLD-IS™ is sensitive exclusively to methane gas as demanded by field users; therefore, it does not respond to other gases and does not mislead field personnel regarding leaks.

Potentially Explosive Atmosphere Protection Class, IS, and Bluetooth Features
Can be safely used in manufacturing plants, gas processing stations, LNG carriers, and offshore platforms with its intrinsically safe (IS) design.

Carrying Case Doubles as a Verification Kit
While safely protecting the instrument, the carrying case of the RMLD-IS™ also calibrates/verifies the instrument via its integrated test gas cell, preventing inaccurate field measurements by operators.

Efficient, Fast, and Highly Cost-Effective
Saving time for gas distribution companies and operators, this method significantly increases efficiency while offering a safe solution that minimises operating and maintenance expenditure.

Note: The instrument is compatible with MDTVA* software produced by NOVEL. This enables tracking on Google Maps. Please contact our company for detailed information.

Product Documents

Manufacturer Product Brochure, English

Heath_Consultants_RMLD-IS_Manual_EN

Technical Specifications

Sensor Type	Tunable Diode Laser Absorption Spectroscopy (TDLAS)
Measurement Range	0–99,999 ppm-m
Sensitivity	In the 0–15 m range – 5 ppm-m In the 15–30 m range – 10 ppm-m or less
Safety Classification	Class 1 Division 1 Group D, T4 in accordance with UL 913 & CSA C22.2 No 157, MetLab Listing #E112840, ATEX: (Suitable for use in potentially explosive atmospheres)
Detection Distance	Approximately 30 m (may vary according to weather conditions and background type)
Beam Dimensions	Reaches a diameter of 56 cm at a distance of 30 m thanks to the conical beam profile of the laser.
Detection Alarm Modes	Digital Methane Detector (DMD) Variable audio tones corresponding to gas concentration Adjustable Alarm Level between 0–225 ppm-m Adjustable Sound Level
System Fault Warning	Distinctive audible tone for faults and visual on-screen indication
Self-Test (Internal Verification) and Calibration	Verifies operations via internal instrument functions, automatically adjusting the laser wavelength to ensure maximum sensitivity. The test gas cell is integrated into the carrying case.
Compliance	EMC (EN 61000-6-2, EN 61000-6-4)
Laser Class	IR Laser: Class I (CDRH, ANSI, and IEC) (Direct beam exposure is harmless). Green Guide Laser: Class IIIa (Do not stare into beam or expose eyes directly)
Instrument Connectivity	RS-232 and Bluetooth connectivity features are available.
Display	Large, easy-to-read, backlit LCD screen
Operating Temperature/Humidity	Between -17 °C and 50 °C, between 5% and 95% Relative Humidity
Protection Class	IP54 ingress protection rating (resistant to water splashes and high dust levels)
Weight and Dimensions	Instrument: 4.5 kg (6.4 kg with carrying case), Carrying Case Dimensions: 86 x 24 x 36 cm
Battery Specifications and Life	Rechargeable Li-ion battery, 11.1 V DC, battery operating time of at least 8 hours; battery status can be viewed on the control panel.
Standard Accessories	Ergonomic dual shoulder straps and waist belt

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