STARTER KI Gas Detection 7
Methane detection made easy with extra long distance detector
A new generation of methane selective portable detectors has emerged recently, offering extra-long distance detection capacities. The Gazoscan, manufactured by Gazomat is an instrument capable of detecting methane up to 100m. This opens up new perspectives in the fi eld of natural gas pipeline network monitoring, as illustrated in the following example.
This case relates to a conventional gas distribution network inspection conducted from a mobile leak survey vehicle. The scheduled route includes a bridge over a river where the pipeline crosses underground. Running at a distance of approximately 50m from the bridge, that part of the network is listed as non-accessible and non-surveyable. Driving over the bridge, the survey technician decides to test the laser- based Gazoscan detector. Standing right at the centre of the bridge, he points the laser beam towards the water surface and scans the area between both river banks. As it reaches the middle of the river, the Gazoscan’s alarm sets off powerfully. On the device screen, the reading displayed in ppm/m corresponds to a methane concentration almost 50 times above the levels usually encountered by the operator.
To make sure, the somewhat taken aback technician shoots again with the Gazoscan. Readings however do remain at the same high level. The gas leak detected IS really signifi cant, and yet there are no visible signs in the area - no burnt grass, no dead fi sh, no gas bubbling up to the water surface. Looking carefully, he identifi es gas pipeline markers indicating the presence of a transmission pipeline. Alerted, the services in charge of the transmission network and of the distribution network must urgently determine the leak source. As a fi rst step, the service pressure in the distribution pipeline section is modifi ed and measures taken using the Gazoscan from the bridge. The results quickly show the leak originates from the distribution network. Major repair works are scheduled, comprised of (trenchless) directional drilling over a 2 km distance and the replacement of the leaky pipeline section running under the river bed.
As to the technician involved, he freely admits he will never forget the experience that showed him all the benefi ts and potential of this type of detectors. As he says, ‘the devices are so easy to use and so quick to start up. Wherever pipelines or installations are hard to access, they simply make fi eld inspections easier and more exhaustive, while allowing to keep safe distances’.
Atex and IECEx certifi ed, the methane detector offers an extended range of application in a variety of industries.
More information online:
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Optical multi-analyte meter with a sting in its tail
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Detect more than 400 and vapours simply a calibration effort or po
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The compact FireSting-PRO is a unique one-device solution for multiple analytes and sensor heads. It is a PC-controlled (USB) fi bre-optic multi-analyte meter, which can be combined with the complete sensor portfolio for optical O2
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Each of the 4 optical channels is freely confi gurable for several analytes and sensor types. These range from microsensors (50 µm tip) to robust probes (3 mm tip) and include diverse smart contactless sensor solutions (for measurements in closed systems / respirometry, microfl uidics and complex geometries), as well as sensors for different ranges (full and trace range O2
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ranges). A precision Pt100 temperature sensor can be connected to the temperature port, enabling automatic zero noise and zero latency temperature compensation of the optical sensor measurements in samples with varying temperatures, even during high speed measurements.
The FireSting-PRO features improved ambient light suppression for applications at in situ light conditions, as well as smart measurement modes for a prolonged sensor lifetime. Several FireSting-PRO devices can be simply operated with a single PC in a single Pyro Workbench window, offering scalable fi bre- optic multi-parameter sensor systems with e.g. 8, 16, 32, or 64 channels. It has never been easier to measure important parameters in a single sample at high precision with maximum fl exibility concerning analyte, sensor format, measuring mode, and application range. These devices are also available as 1-channel and 2-channel version.
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Fast service and delivery straight from our UK/ European warehouse.
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• Kitagawa AP-20 Sam with integral sample precision sampling, fragment container
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Detect over 400 hazardous gases and vapours simply and reliably, without calibration eff ort or power supply.
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• Certified to EN1231 • Certified to ISO9001:2008 • US Design patent no. US D467,334 S • Japan design reg no. 1131898
GAS DETECTION STARTER KIT OFFER
Available from:
Euro-Gas Management Services Ltd, Churston House, Bascombe Road, Churston Ferrers, Devon, TQ5 0JJ, United Kingdom.
TEL: +44 (0)1803 844414 FAX: +44 (0)1803 844224 EMAIL:
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Euro-Gas Management Services Ltd, Churston House, Bascombe Road, Churston Ferrers, Devon, TQ5 0JJ, United Kingdom.
TEL: +44 (0)1803 844414 EMAIL:
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Manufactured by:
Komyo Rikagaku Kogyo K.K. 1-8-28 Shimonoge, Takatsu-Ku, Kawasaki-City, Kanagawa 213-0006, Japan
Komyo Rikagaku Kogyo K.K. 1-8-28 Shimonoge, Takatsu-Ku, Kawasaki-City, Kanagawa 213-0006, Japan
TEL: +81 (0)44 833 8911 EMAIL:
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TEL: +81 (0)44 833 8911 FAX: +81 (0)44 833 2672 EMAIL:
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