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

Taylor, C. D.; Chilton, J. E.; Zimmer, J. A.

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

Published Date:

2004

Source:

Mine ventilation: Proceedings of the 10th U.S./North American Mine Ventilation Symposium, Anchorage, Alaska, May 16-19, 2004. Leiden, Netherlands: Balkema, 2004 May; :177-182

Language:

English

[PDF-240.19 KB]

Details:

Personal Author:

Taylor, C. D. ; Chilton, J. E. ; Zimmer, J. A. ;

Corporate Authors:

Pittsburgh Research Laboratory (National Institute for Occupational Safety and Health)

Conference Authors:

U.S./North American Mine Ventilation Symposium (10th : 2004 May 16-19 : Anchorage, Alaska)

Description:

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 the readings obtained using 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.

Subject:

[+]

Document Type:

Book Chapter

Collection(s):

National Institute for Occupational Safety and Health

Main Document Checksum:

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Supporting Files:

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