Vehicle Based Methane Detection – SELMA Roof G4

The SELMA Mini is an infrared vehicle based methane detection laser beam that can be aimed toward any object from 3.2 to 262 feet away. Methane clouds that cross through the IR beam between the object and the sensor, measuring the discharge.

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Description

Overview of the Vehicle Based Methane Detection – SELMA Roof G4

SELMA (Street Evaluating Laser Methane Assessment) is one of the most state-of-the-art Vehicle Based Gas Leak Detection devices available for inspection from a moving vehicle. SELMA pulses an infrared laser beam to identify sources of methane emissions.

Roof: The infrared laser beam can be aimed toward any object from 3.2 to 262 feet away. SELMA recognises methane clouds that cross through the IR beam between the object and the sensor, measuring the discharge.

Selma roof Specifications

Target Gas	Methane (CH4) and methane-containing gases (natural gas and similar)
Sensitivity	5 ppm×m (Roof System)
Detection Range	0 to 99999 ppm×m (Roof System)
Detection Distance	80 m (75% reflectivity)
Response Time	0.1 seconds (Roof System)
Operating Temperature Range	–10°C … +50°C
Pump Flowrate	max 1080 l/h
Target Position	GPS coordinates
Data Output	Pergam Software
Power Supply	12 V
Max Velocity	60 km/h
Measurement Time	0.1 sec
Laser Safety Class	Guide light (green laser light): Class 3R Measurement light (infrared laser light): Class 1
Dimensions	197 (D) × 316 (H) mm (Roof System)
Weight	6.5 kg (Roof System)
Rotation Angle	Horizontal 360° \| Vertical: 25° > +90°
Video Camera	Full HD (1920×1080)

Features

Simple operation and data processing
Detects leaks in front and to the side of the driving path
Detection distance — up to 80 m
Max velocity — 60 km/h
Methane sensitivity — 5 ppm
Installation on any type of vehicle

Applications

Inspection of high and low pressure gas distribution networks
Detects very small leakages
Based on a pulsed IR laser system
Detects leakages by utilising two independent laser detection systems

Downloads

[pdf-embedder url=”https://controlequipment.com.au/wp-content/uploads/2024/10/Selma_Roof_G4Dome_Datasheet.pdf” title=”Selma_Roof_G4(Dome)_Datasheet”]

Video

Additional information

Model	GX-3R, GX-3R Pro