RMLD-IS® | RMLD Intrinsically Safe

Our intrinsically safe Remote Methane Leak Detector (RMLD-IS) is an eye-safe laser-based natural gas detector (methane) that can quickly and efficiently detect leaks up to one hundred feet away allowing remote detection of difficult to access places such as; busy roadways, locked yards, underground piping, compressor stations, offshore platforms, plant/industrial inspections, gas processing plants, gas gathering, drilling sites, landfills, difficult terrains and more. When the infrared laser beam is transmitted from the launch port, some of the laser light is reflected back and converted to an electrical signal that carries the information needed to deduce the methane concentration. The RMLD-IS has proven to be a highly effective leak survey instrument, compared to flame ionization and similar equipment, but with the added advantage of remote detection. By design the RMLD-IS is capable of achieving significant productivity gains and drastically reduce operations and maintenance costs. 

The RMLD-IS is also a game-changer in the environmental industry. The proof is in the numbers with thousands of units in use worldwide. The RMLD-IS’ remote detection allows users to satisfy increasing restrictions on air quality controls and increase success in reducing emissions from underground pipeline networks as well as above ground fugitive sources.

Detection Method:          Tunable Diode Laser Absorption Spectroscopy (TDLAS)

Measurement Range:       0 to 99,999 ppm-m

Sensitivity:                   5 ppm-m at distances from 0 to 50 ft  (15 m) 10 ppm-m or better at distances  from 50 to 100 ft (15 to 30 m)

Intrinsic Safety:             Class 1 Division 1 Group D, T4 in  accordance with UL 913 & CSA C22.2  No 157, MetLab Listing #E112840

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” diameter  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 Detection Alarm Level  from 0 to 255 ppm-m

                                 Pure Tone: Continuous audio tone relative to concentration Adjustable V olume: 8 Levels

System Fault Warning:     Unique audible tone and indication on the display

Self Test & 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)  

Laser Eye Safety:            IR Laser: Class I (CDRH, ANSI and IEC)

Green Spotter Laser:        Class IIIa; Do not stare into beam or view directly with optical instruments

Communications:            RS232 and Bluetooth Standard

Display:                        Large, easy to read backlit LCD (.75” Numeric)

Operating Temperature:     0° to + 122° F (-17° to 50° C)

Humidity:                      5 to 95% RH, non-condensing

Enclosure:                     IP54 (Water splash and Dust resistant)

Instrument Weight:          10 lbs (Transceiver 3 lbs, Controller 7 lbs); (4.5 kg; 1.3 kg, 3.2 kg)

Carry Case:                    14 lbs; 34” x 9 ½” x 14”  (6.4 kg; 86 cm x 24 cm x 36 cm)

Battery:                        Internal, rechargeable, Li ion battery pack, 11.1 Vdc

Battery Run Time:            8 hours at 32° F without backlight on, minimum

Battery Charging:             External, in-line, 110-240 Vac, 50 / 60 hertz, international, 19 Vdc power supply

Charge Time, Maximum:     8 hours

Charging Indicator:            Integrated into controller panel

Shoulder Strap:                Single over the shoulder padded strap with Ergonomic dual strap and belt system