Senscient Inc

Senscient Inc

Hydrogen Sulphide and Methane Gas Detector



This Open Path Gas Detector (OPGD) detects two gases in a single instrument, Hydrogen Sulphide (H2S) and Methane (CH4). Each of the two detection channels is configured and specific to the target gas. The separate transmitter and receiver assemblies are certified for use in potentially explosive atmospheres and can detect H2S + CH4 over distances of 5 to 60 meters. Constructed in high grade corrosion resistant 316 Stainless Steel this device is ideally suited for onshore and offshore, open and enclosed environments. With no consumable parts and the patented daily auto-self testing facility; called ‘SimugasTM’, the Senscient ELDSTM H2S + CH4 detector offers significant installed and operational cost savings over conventional fixed point toxic and flammable gas detectors.

  • Fastest speed of response (H2S <5 & CH4 <3 seconds) ­ Increased safety by providing earlier warning.
  • Operates up to 60 meters ­ Significant installation cost savings over multiple fixed point gas detectors.
  • No consumable parts ­ No on-going cost for replacement sensing elements and associated service labour.
  • SimuGasTM daily auto gas testing ­ No manual intervention or on-going cost for routine gas testing.
  • H2S & CH4 specific ­ No false alarms from interference gases as experienced with many fixed point toxic gas detectors.
  • BluetoothTM connectivity ­ No physical intervention required for local interrogation, event log downloading and trouble shooting.

Open path H2S + CH4 gas detectors are used to monitor for fugitive emissions, protect personnel and warn of plant failure. These devices are typically located to provide a detection barrier around the perimeter of a plant, process or storage area; or positioned in close proximity to specific items of plant, that pose a real risk of gas escape: e.g. pump sets, pressure reducers, valves and pipe flanges.

  • Typical applications include:
  • Oil & gas exploration rigs
  • Oil & gas production platforms and facilities
  • Sour gas sweetening and processing plants
  • Petrochemical refineries
  • Waste water treatment plants
  • Landfill sites

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