ppbRAE 3000 User’s Guide
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Backlight
The LCD display is equipped with an LED backlight to assist in
reading the display under poor lighting conditions.
Datalogging
During datalogging, the instrument displays a disk icon to indicate
that datalogging is enabled. The instrument stores the measured gas
concentration at the end of every sample period (when data logging is
enabled). In addition, the following information is stored: user ID,
site ID, serial number, last calibration date, and alarm limits. All data
are retained (even after the unit is turned off) in non-volatile memory
so that it can be down- loaded at a later time to a PC.
Datalogging event
When Datalogging is enabled, measurement readings are being saved.
These data are stored in “groups” or “events.” A new event is created
and stored each time the instrument is turned on and is set to
automatic datalogging, or a configuration parameter is changed, or
datalogging is interrupted. The maximum time for one event is 24
hours or 28,800 points. If an event exceeds 24 hours, a new event is
automatically created. Information, such as start time, user ID, site
ID, gas name, serial number, last calibration date, and alarm limits are
recorded.
Datalogging sample
After an event is recorded, the unit records a shorter form of the data.
When transferred to a PC running ProRAE Studio, this data is
arranged with a sample number, time, date, gas concentration, and
other related information.
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