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Figure 37. Recent Scan
Active Gases
The gases are actively monitored in that area. If a gas is not
shown as active, it is not monitored in that area.
Started The date and time of the scan is identified.
Concentration
Concentration of each active gas. Usually, the ACM 150 monitor
confirms zero gas present, shown as 0. In most cases, the scale
is ppm (parts per million). Other concentration scales available
are % LEL for combustible gases and ppht for water vapor
(these terms are defined in Appendix C).
Spectrum Infrared spectrum of this air
Alarm 1 / Alarm 2
Alarm 1 and 2 level set points for this active gas.
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