Campbell Scientific DOT600 Roadbed Water Content Meter - Manual (Page 10)

DOT600 Roadbed Water Content Meter
4.2.3 Make Measurements
Scrolling to and selecting Make Measurements allows selection of
measurement steps and displays the results as measurements are made. See
Measurement section for detailed description.
4.2.4 System Menu
The System Menu allows user access to numerous settings and data. For
operation of the DOT600, the only control of interest is System
Menu/Configure, Settings/Display. From this menu the user can control the
display back lighting, contrast and display timeout to save power. The
calibration file can also be edited through this menu, and a list of files stored on
the datalogger CPU can be accessed.
4.2.5 Measurement Report
A command in the measurement sequence writes measurement data to a file.
The information in the file is similar to information recorded on data sheets
commonly used by Departments of Transportation. Table 2 describes the
report information. Units are SI or Imperial, as selected by user.
TABLE 2. Information in the report.
Variable Description
TIMESTAMP Date and time when measurements are written
to data file
RECORD Record number
Project# Value entered by user to identify project
DMY Day, month and year
Tester Value entered by user to identify person making
measurements
TestNum Incremental record number. Automatically
increments after each data write to output table
XCoordinate, YCoordinate,
ZCoordinate Values entered by user to identify sample
location
Per Output period of measurement circuit
Freq Output frequency of measurement circuit
Gwc Gravimetric water content
Vwc Volumetric water content
Material Type Soil texture
Dry Bulk Density Sample dry bulk density
Sample Weight Sample net weight
SampleVolume Sample volume
SampleDepth Depth or thickness of sample at time of
measurement
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