3-16 AeroTrak
®
Portable Airborne Particle Counter
7. Press the Channels tab.
8. This tab can be used to view or set the particle size for each channel
(not supported in all models), enable/disable the channel,
enable/disable alarm for each channel and set the alarm threshold for
each channel. The threshold values are expressed in the units
selected in the Count Units control. Select the appropriate Count
Units from the list.
During sampling, when a channel value exceeds the threshold value
set here, the channel data is highlighted in red on the Main screen,
an audible alarm sounds, and the alarm icon.
To acknowledge the alarm and silence the buzzer, tap the alarm
icon .
In Differential modes (Δ), disabling one or more channels will
disable all threshold alarms. Other alarms are not affected.
While in beep mode, a threshold of 0 will not trigger an audible
alarm even if Alarm is enabled.
Concentration display is unavailable in Beep mode.
9. Press Save or Save New Recipe as appropriate when done.