Wednesday 23rd September 2009
Senior WorleyParsons engineers and safety personnel, together with some of their clients, witnessed the Groveley Detection demonstration of Simtronics' new GD1 line of sight Hydrogen Sulphide (H2S) detection system.
Hydrogen Sulphide is a highly toxic gas which naturally occurs in the Kashagan Region.
The H2S detectors currently fitted at Kashagan use a consumable technology, (electrochemical cells) which require regular field calibration and replacement - while the new GD1 needs no re-calibration and can replace multiple standard detectors to cover the same risk.
The product was demonstrated by Simtronics, in partnership with Groveley, working over a path length of 30m. The unit proved the accuracy and speed of response of the system to a variety of H2S gas concentrations.
The GD1 utilises a tuneable laser diode to protect over a path length of up to 100m and will instantaneously respond to the presence of any H2S gas cloud which passes between the transmitter and receiver.
The GD1 is packed with features that provide an effective response to the detection of gas hazards in a range of industrial environments from offshore production facilities to wastewater treatment plants.
The tuneable laser at the heart of the detector eliminates environmental effects from sun, rain and fog, and scans single absorption lines where there is no interference from other gases.
The optomechanical design and construction is so stable that an ultra-fast speed of response (T90 in less than 5 seconds) can be achieved while providing extended service life and detector stability, which reduces maintenance and service costs.
The GD1 will also be available with a dual output gas configuration. A single laser can be used to detect both methane and hydrogen sulphide, reducing cabling, installation and maintenance costs.
Picture: Groveley's new GD1 Hydrogen Sulphide laser open path detector
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