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Direct Reading Instruments
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- DVD (VHS avail.)
In-depth study; how instruments work, operation and calibration checks.
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Part Two of Air Monitoring is entitled "Direct Reading Instruments." This program takes a closer look at the primary air monitoring devices, telling the purpose of each and showing how they work, how to interpret readings, and how to avoid common problems. The instruments covered include combustible gas indicators, oxygen meters, detector (colorimetric) tubes, survey instruments (PIDs and FIDs), radiation monitors, combination meters, and toxic gas detectors.
"Direct Reading Instruments" discusses calibration of instruments, reference gases, and how to use a response curve to read meters. It explains how to get accurate readings, and how an oxygen deficient or oxygen enriched atmosphere and other factors will affect results. This film also tells how each instrument must be maintained, and now to avoid damage. (28 minutes.)
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