GAS SENSING SYSTEMS OptoSniff, OptoSci's unique laser sensing system, continuously measures gas concentration levels at single or multiple points distributed along a fibre optic network. Variants of the system can be used for gas sensing applications in landfill sites, mines, gas and petroleum installations, industrial process monitoring and control, etc. Standard Features General features of OptoSniff based systems are Continuous, multipoint, monitoring of single or multiple gas concentrations over the same optical fibre sensing network Single unit measures from 100% down to LEL gas concentration levels without poisoning (a key drawback of pellistor sensors) Detection method is self-referencing eliminating zero point drift and the requirement for re-calibration (a particular problem with infra-red gas analysers) Constant output data is available at a conveniently sited central control unit for alarm notification, gas reporting, analysis, remote access from PC, onward transmission, etc System uniquely tuned to gases of interest with no cross-sensitivity to other gases (another particular disadvantage of infra-red gas analysers) Measurement method is independent of optical power variations (a further drawback of infra-red gas analysers) System designed to operate reliably even up to 90% optical power loss at sensing cell Low power, all optical measurement ensures intrinsic safety and immunity to electromagnetic interference at the measurement point Sensor units have been designed to operate reliably and have been thoroughly tested in the hot (up to 40°C), humid (up to 90% humidity, non-condensing), and harsh (CH4, H2S, etc) environment experienced down in-waste wells in landfill sites. Potential unlimited expansion of number of sensing points through use of optical switches Current system has been applied to monitor methane, carbon dioxide & water vapour but the system can be designed to measure other gases (please contact OptoSci to discuss your application) The following datasheets provide additional details on OptoSniff and some of its potential applications. When you have had an opportunity to review this information please contact OptoSci with your specific requirements and we will be pleased to discuss them with you in further detail. MMS Laser sensing system for single or multiple point continuous gas monitoring. Has applications in landfill sites, mines, gas and petroleum installations, industrial process monitoring, etc. MMS-L Laser sensing system for multipoint continuous methane monitoring on landfill sites. Applications include: continuous monitoring records, optimising engine efficiency, early warning system, safety level measurements, perimeter and gas migration monitoring. MMS-P Laser sensing system designed specifically for continuous perimeter and gas migration monitoring of methane and carbon dioxide on landfill sites. OEM While OptoSci can supply complete gas sensing systems we are also pleased to discuss and consider producing OEM OptoSniff sub-systems for integration into clients' own monitoring and control instruments, or custom systems designed to monitor other gases. OEM