49
|
P a g e
Archimede Portable Dataloggers User Manual
rev.5 -03.12.2019-
T-REX Graph
When the user performs a T-REX inclinometer test, it is necessary to make a distinction between
the reference test (usually the first test performed, which measures are therefore absolute) and
the other tests in which, what matters is usually the difference between the current values and
the values recorded in the reference test (relative measures).
The graphs for these two options are slightly different.
The graph for the reference test on the left is labeled as ABSOLUTE, while the graphs for the other
tests display a label indicating the test being used as reference. The reference test (or the fact that
a test is absolute) is selected when starting the test and cannot be changed later.
In the absolute graph on the left the blue line represents the difference between the distance of
the reference magnetic rings and the ideal value of one meter.
In the relative graph the offset of the reference test is subtracted before drawing the graph and
the line represents the lengthening of the tube at each depth from the original state.
If both an UP and a DOWN runs have been performed, they will be drawn as different lines (blue
for UP and green for DOWN).
For relative graphs a line is drawn only if the relative data is available both in the current and in
the reference test.