Remote Methane Detector SELMA Dome — PERGAM-ENGINEERING OJSC

Name: Remote Methane Detector SELMA Dome
Brand: SELMA
SKU: 182458
Availability: InStock

Brand: SELMA

$9,000 - $30,000 USD

MOQ: 1 pieces

Key Features

Type of gas analyzer: mobile (portable)

Types of gases to be detected: methane

Minimum operating temperature: -30 °C

Type of gas analyzer: mobile (portable)

Supplier Information

PERGAM-ENGINEERING OJSC

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Description

The SELMA Dome is a vehicle-mounted remote methane leak detector designed and manufactured by PERGAM-ENGINEERING, a Russian company specialising in laser gas-detection systems. The unit bolts onto any car or special-purpose vehicle and continuously scans the surrounding environment for natural-gas leaks while the vehicle is in motion at speeds up to 60 km/h.

Detection relies on a pulsed infrared laser absorption spectrophotometer: the laser beam is aimed at surfaces up to 60 metres away, and any methane cloud that crosses the beam — at any point along that path — is identified and quantified. The measured value is expressed as methane column density in ppm×m, with a sensitivity threshold of 5 ppm×m.

The system detects leaks both ahead of and beside the vehicle's travel path, covering residential streets, underground and above-ground distribution pipelines, and compressor-station perimeters in a single drive-by survey. Operating in ambient temperatures from −30 °C to +50 °C, the SELMA Dome replaces manual foot-patrol inspections with a far faster mobile-laboratory workflow.

The detector is already in regular service with gas utilities in Russia and Kazakhstan for periodic pipeline-integrity surveys and residential-area screening.

Details & Equipment

Product & Installation

SELMA Dome Unit

The SELMA Dome sensor head in its characteristic dome housing. The compact form factor encloses the pulsed IR laser and detector optics, keeping the system protected from road debris and weather.

Vehicle Installation

The detector mounted on a survey vehicle, ready for drive-by pipeline inspection. The universal bracket system supports installation on standard passenger cars as well as purpose-built utility trucks.

Operating Principle

Schematic showing the pulsed laser beam sweeping forward and sideways from the moving vehicle. Methane concentration is calculated from the absorption of the reflected beam, expressed as column density in ppm×m.

Features

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Pulsed IR Laser

Uses a pulsed infrared laser absorption spectrophotometer to detect and measure methane remotely. Any methane cloud intersecting the beam between the sensor and a reflective surface up to 60 m away is captured.

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60 m Detection Range

The laser beam can be directed at objects up to 60 metres from the vehicle, enabling detection of leaks that are well off the road without stopping.

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Mobile Survey at 60 km/h

The system operates at full sensitivity while the vehicle travels at up to 60 km/h, replacing slow foot-patrol inspections with rapid drive-by surveys.

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5 ppm×m Sensitivity

Detects methane concentrations as low as 5 ppm×m (methane column density), ensuring even minor leaks are registered before they become hazardous.

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Wide Operating Range

Certified for operation from −30 °C to +50 °C, making the detector suitable for year-round field use in harsh Russian and Central Asian climates.

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Universal Chassis Mount

The dome-shaped sensor head installs on any vehicle or special-purpose chassis without modification, and data processing is handled through a straightforward onboard interface.

Buyer Benefits

Replaces slow manual foot-patrol surveys with vehicle-speed drive-by inspections, dramatically increasing the length of pipeline that can be screened per shift
Remote sensing up to 60 m eliminates the need to access confined spaces or off-road terrain to locate a leak
Simultaneous forward- and side-looking coverage means no second pass is required to check roadside infrastructure
Quantitative ppm×m readings enable prioritisation of repair work by leak severity rather than simple presence/absence detection
Universal mounting interface means the sensor can be transferred between fleet vehicles or installed on specialised inspection trucks
Proven in operational service with gas utilities in Russia and Kazakhstan, with documented track record on distribution networks and compressor stations
Simple operator interface reduces training requirements and speeds data export for post-survey analysis

Applications

Routine drive-by integrity surveys of urban and suburban natural-gas distribution networks Inspection of underground gas pipelines beneath roads and residential streets Perimeter monitoring and leak detection at compressor stations and gas metering points Screening of residential areas for undetected leaks from private connections and service lines Rapid post-incident surveys following third-party damage to pipelines Pre-excavation gas-safety checks along planned construction corridors Periodic audit of above-ground gas-supply infrastructure in industrial parks and process plants Environmental leak-quantification surveys for methane emissions reporting

Source: official manufacturer website