4-20mA current loop output pressure transmitters for use on landfill sites where an area of land that is used to bury waste material.
Due to the decomposition of buried waste material over time, a landfill site presents a potential hazard to the environment unless precautions are taken to contain pollutants and prevent contamination.
Decomposing waste will produce a mixture of flammable and greenhouse house gases that can escape into the local atmosphere. In a landfill site extraction wells are used to collect the landfill gas (LFG) from surround waste at multiple locations around the site. This LFG is then treated and typically used to fuel power generators to provide electricity.
Pressure transmitters are measurement devices which combine an amplified 4 to 20 milliamp current loop output signal conditioning electronic module with a transducer for measuring the pressure of a liquid, vapour or gas.