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Mining Publication: Evaluating Performance Characteristics of Machine-Mounted Methane Monitors by Measuring Response Time
Keywords: Coal mining Methane Methane monitors Monitoring Time measuring instruments 
 Underground mining
This page is archived for historical purposes and is no longer being maintained or updated.
Original creation date: June 2002
Authors: CD Taylor, JE Chilton, T Mal
Conference Paper - June 2002
Download PDF Document (0.35 MB)
NIOSHTIC2 Number: 20023128
In: De Souze E, ed. Mine Ventilation: Proceedings of the North American/Ninth U.S. Mine Ventilation Symposium (Kingston, Ontario, Canada, Jun 8-12, 2002). Lisse, The Netherlands: A. A. Balkema; 2002 Oct; :315-321
Methane monitoring at the mine face is essential to assure a safe work environment in underground coal mines. Machine-mounted methane monitors must be used to continuously monitor methane levels during mining. Monitors used on mining machines must be approved by MSHA and properly maintained to provide protection for workers (30 CFR 75.342). To provide protection the instrument must give accurate readings of current methane levels. Accuracy is maintained by calibrating the instrument with a standard gas at least once every 31 days. Instrument "response time" determines how quickly measurements will change to reflect current concentrations. At present there are no criteria for measuring the response time for a machine mounted methane monitor while underground. This study examined a procedure for measuring the response time of a machine-mounted methane monitor. Response times were measured using methanometers obtained from three different manufacturers. The effects of the measurement technique and methanometer sensor head design on response time measurements are investigated. Techniques for reducing variation in response time measurements are discussed.
Image of publication Evaluating Performance Characteristics of Machine-Mounted Methane Monitors by Measuring Response TimeConference Paper - June 2002
Download PDF Document (0.35 MB)
NIOSHTIC2 Number: 20023128
In: De Souze E, ed. Mine Ventilation: Proceedings of the North American/Ninth U.S. Mine Ventilation Symposium (Kingston, Ontario, Canada, Jun 8-12, 2002). Lisse, The Netherlands: A. A. Balkema; 2002 Oct; :315-321
See Also
Composition Change Model for Sealed Atmosphere in Coal Mines
Historical Development of Technologies for Controlling Methane in Underground Coal Mines
Methane Emission Rate Studies in a Northern West Virginia Mine
NIOSH Research for Monitoring and Controlling Methane at U.S. Underground Coal Mining Operations
Peak Methane Concentrations During Coal Mining: An Analysis
Remote Methane Sensors
Research on the Transmission of Electromagnetic Signals Between Mine Workings and the Surface
Rotary Drilling Techniques Used in the Beckley Coalbed
Use of a Test Box to Measure Response Times for Machine-Mounted Monitors
Water and Slurry Bulkheads in Underground Coal Mines: Design, Monitoring, and Safety Concerns
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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