If you are reading this blog, chances are that you’re a landfill owner or operator looking for quality gas detectors for your operation.  You already know that when landfill gas (biogas) combines with air in certain proportions, an explosive mixture may be formed.  Landfill gas usually contains a mixture of gases, but the highest concentrations are methane and carbon dioxide.  Methane is the gas most likely to pose the greatest explosion hazard in a landfill.  Due to the inherent risk posed by landfill gas, there is a definite need to monitor the gases produced by landfills with gas detection equipment. 

The concentration level at which gas has the potential to explode is referred to as the explosive limit.  The explosive limit is determined by the gases lower explosive limit (LEL) and upper explosive limit (UEL).  These are measures of the percent of a gas in the air by volume.  When methane is mixed with air at a volume between its LEL of 5% and its UEL of 15%, it is dangerously explosive.  To be aware of potential dangers from high gas levels, landfill operators need quality gas detectors.

For years, Crowcon has provided innovative sampling systems that offer landfill operators a great solution for permanently monitoring flammable and/or toxic gases in applications where fixed-point monitors may prove impractical.  These sampling systems have proven highly effective for landfill borehole monitoring.  Like all cutting edge companies, Crowcon didn’t get fat and lazy because they had successful landfill gas monitoring products; they developed a new ingenious unit to give landfill operators even better technology for leak detection.

We are proud to announce the new Crowcon PGSi Programmable Monitoring System that has the ability to monitor up to 4 different landfill gases at once from up to 32 individual sampling points!  The sample times for each point are individually adjustable and can be sequenced in any order.  A duel-pump arrangement ensures that samples reach the gas sensors as quickly as possible.  Internal gas leak detectors, flame arrestors, filters and flow-fail devices are all fitted as standard to ensure safe and reliable operation at all times.

The system is controlled by an industrial PC which displays individual sample locations, gas levels and alarms.  It operates up to 32 relays and provides comprehensive data-logging facilities; with gas data displayed either in graphical or tabular formats.  The PC can be monitored remotely via an optional modem, allowing status checks and the uploading of datalog files.  The system can be supplies with a PC or can be operated with the user’s PC.  Using Windows XP-based software, the PGSi is ideal for landfill gas monitoring on boreholes or for protecting structures built on landfill sites.