methanometer


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methanometer

(ˌmɛθəˈnɒmɪtə)
n
(Mining & Quarrying) an instrument that measures the concentration of methane in the air of mines
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
For example, there was an occasion when the mine's methanometer broke down, meaning that the continuous miner would not automatically shut down if explosive methane levels were reached.
Methanometers (explosimeters calibrated for methane), based on the principle of the heat released by the oxidation of methane on a catalytic surface, are in common usage, and provide a much more quantitative measurement than the proverbial canary.