Face Dipstick 2200 Series, Руководство оператора

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C
HAPTER
4 COLLECT
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times the design slope. If you are measuring a tilted slab, you will find it convenient to measure
all runs up the slab first, using the design slope, and then change the design slope to zero and make
all the transverse (horizontal) runs. Be sure to remove the design slope from the Run Settings
screen before you collect data on the next slab. This is an optional field, so you may leave this
field blank unless the surface has a known uniform fixed slope.
Note: If you use the menu item CALCULATE/SLOPE, the program will calculate and remove the
actual slope of the run for you. (The slope will be calculated from one end of the Run to the other)
The program will automatically enter the calculated slope in this window for you
. Again, you
normally leave this field blank and let the program do the work.
START POINT ELEVATION
If you know the Start Point Elevation of a run, you may enter it now. The Start Point Elevation
controls the elevations on the graph, but has no effect at all on IRI or any other roughness index. If
no Start Point Elevation has been set, then the computer will best fit the graph on the Tablet’s
screen by centering the profile about zero. (The profile will not start at zero, but the overall profile
will be centered on zero.)
If you will be comparing elevations between points on a line for an engineering study, you may
wish to select a Start Point Elevation of zero for the first line. If you are collecting data in sets of
lines that touch each other, the Start Point Elevation of each line may be referred to a single point
so that all lines reference a common datum. When you “UnBox a Run” (discussed later) the
program will automatically calculate and set the start points for you.
If you are just collecting data to get an IRI, no Start Point Elevation is required. You may leave it
blank, or use a start point elevation, whichever you desire. It will not change the IRI.
OPERATOR
This field identifies who is taking the data. This is an optional field, but we recommend that you
do use it, because you may find it useful later to know the name of the operator who collected each
Run. If you have a record of who collected the data, you can consult with the operator to resolve
any questions about the weather conditions, the road surface, or anything else regarding the data
that was collected.
NOW YOU ARE READY TO START A NEW RUN
To begin data collection, tap COLLECT /NEW RUN. Type in a run name that will identify this
run of data for you. Choose a name that will help you remember where this data came from,
perhaps a station number and direction of travel. (No spaces or funny characters are allowed, but
you may use an underscore or a dash in addition to letters and numbers. Verify that the other
information (from SETTINGS/RUN INFORMATION) is correct. Change anything that you need
to change, and tap
OK to bring up the Data Collection Screen.
When the next screen appears, you are ready to collect data.
Place the Dipstick battery end foot on the start point of the survey line with the start arrow (the
switch end of the Dipstick) pointed forward.