Pergam Italia
Via della Volta 183
25124 Brescia
Tel: +39 030 3531423
Fax: +39 030 3469939

Pergam ALMA G4 mini
Pergam Suisse

Pergam ALMA G4 mini

ALMA (Aerial Laser Methane Assessment) is designed for operational diagnostics of extended gas transmission and gas distribution facilities for leaks. Remote Methane Detection.


Aerial Laser Methane Assessment ALMA G4 mini

Aircraft laser detectors for operational inspection of extended aboveground and underground gas pipelines for methane leaks. ALMA (Aerial Laser Methane Assessment) is designed for operational diagnostics of extended gas transmission and gas distribution facilities for leaks. Is used for exploration of gas fields. Can be installed on a helicopter or light-engine aircraft.

Pipeline Inspection and Monitoring

ALMA G4 mini — is the solution for aerial pipeline inspections and offers a vital contribution to safety of transmission pipelines. Our product is based on the latest generation of laser spectroscopy and utilizes the most advanced technology, experienced pilots and operators for a dependable pipeline inspection.

The principle of ALMA is based on a pulsed beam from a diode laser, which is pointed at the location to be inspected. The laser wavelength of 1,65 μm corresponds to the first absorption band of methane.

Features and Benefits

  • Airborne device mounted on a fixed wing
  • Full automation
  • Detects faster than conventional method (detection speed: 0.1 sec)
  • Methane-only sensitivity. No false alarm
  • User-friendly software
  • Automatic and continuously performs self-check to ensure ability to detect gas
  • Pilot camera and monitor to aim laser
  • Each leak detection is reported with time, gas concentration, GPS/GLONASS coordinates, and HD image.

ALMA G4 useful for

Transportation
Gas Pipeline

Underground
Gas Storage

Gas Distribution
Station

 

Gas Compression
Station

Gas Processing
Plant

Natural Gas
Storage

ALMA advantages – New airborne inspection capabilities

Works where land inspection
is impossible

With ALMA, you can thoroughly survey a section of a gas pipeline or other extended gas infrastructure facility in places, access to which from the ground is impossible or restricted.

Faster than
on the ground

ALMA diagnostics is carries out at an average speed of 62 mph (100 km/h) allowing to survey gas pipeline sections with a length of up to 373 miles (600 kilometers) per day.

Cheaper than on the ground

Improved efficiency of remote ALMA inspection compared to conventional land-based gas pipeline diagnostic methods makes this process as economical as possible.
 
Airborne gas leak detection

How It Works?

ALMA is a system of airborne surveying of natural gas pipelines and storage facilities. The detector operation principle is based on diode-laser spectroscopy, which provides high reliability, accuracy and selectivity. The device is fully automated and can continuously work without an operator, while storing the results in computer memory. The detector includes a GPS system that determines the flight route coordinates and leak points. Upon leak detection, the operator receives a light and sound signal, and the monitor displays a photo and a Google map of the leak site. The detectors are designed for operation in temperate and cold climates; they comprise an optical unit and an electronics case.

Specifications

 
Maximum detection range up to 984 feet (300 meters)
Measurement time 0.04 sec
Minimum gas detection time 0.08 sec
Detection threshold  
from a distance of 98 feet (30 m) 5 ppm×m
from a distance of 164 feet (50 m) 10 ppm×m
from a distance of 328 feet (100 m) 40 ppm×m
from a distance of 492 feet (150 m) 80 ppm×m
Maximum measured concentration 20,000 ppm×m
Relative measurement error 1%
Laser operating mode:  
Wavelength 1.65 μm
Average power 60 mW
Power supply voltage 12 V
Power consumption:  
with camera 80 W
without camera 70 W
Operating temperature 14 ... 122 °F (–10 ... +50 °C)

You can order the ALMA G4 mini or ask questions here

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Pergam Italia

Via della Volta 183
25124 Brescia

Tel: +39 030 3531423
Fax: +39 030 3469939

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