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Mining Publication: Use of a Test Box to Measure Response Times for Machine-Mounted Monitors

NOTE: This page is archived for historical purposes and is no longer being maintained or updated.

Original creation date: May 2004

Image of publication Use of a Test Box to Measure Response Times for Machine-Mounted Monitors

A technique for use in underground coal mines measures the response times of machine-mounted methane monitors. This technique uses a calibration cup to deliver gas to the sensor head to measure response times. For comparison, in the current study, response times were measured by placing methane sensor heads in a specially designed test box where they were exposed to an atmosphere containing a constant concentration of methane. Response time readings measured in the test box were shorter than those obtained with the calibration cup. The response times measured in the test box were comparable for sensors from three different manufacturers. The effects of dust cap and flame arrestor design on response times were also evaluated using the test box.

Authors: CD Taylor, JE Chilton, JA Zimmer

Conference Paper - May 2004

NIOSHTIC2 Number: 20024943

Ganguli R, Bandopadhyay S, eds. Mine Ventilation: Proc 10th U.S./North American Mine Ventilation Symposium, Anchorage, Alaska, May 16-19, 2004. Leiden, Netherlands: Balkema, 2004 May; :177-182