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
Application
- 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
SELMA Roof G4 Vehicle-Based Gas Leak Detection Overview
SELMA (Street Evaluating Laser Methane Assessment) is one of the most advanced 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 G4 Vehicle-Based Gas Leak Detection 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) |
- Overview
-
SELMA Roof G4 Vehicle-Based Gas Leak Detection Overview
SELMA (Street Evaluating Laser Methane Assessment) is one of the most advanced 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.
- Specifications
-
SELMA Roof G4 Vehicle-Based Gas Leak Detection 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) - Downloads
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