6
Operating modes
21
Progress bar
Saved measure points of
current measure line
Residual measurement time
of current measure point
Saved amount of
measure lines
Measure points per measure line
Figure 10: Graphical display in monitor of control unit
The
residual measurement time for current measure point
indicates how many seconds are still needed
to finish the current scan of this measure point. The
progress bar
shows the timetable of the
measurement procedure graphically.
The indications
saved amount of measure lines
,
saved measure points of current measure line
and
measure points
per measure line
show at every moment how many measurement values has already been stored in
the memory. In our example of figure
the 2. measure point of the 3. measure line has been
stored in this moment, and totally every measure line consists of 5 measure points. The next
step will be to proceed the 3. measure point of the 3. measure line. The basic procedure how
to do a measurement is explained in section
on page
The two different possibilities of recording a measurement and the exact procedure of a mea-
surement will be explained in the following sections.
6.1.1
Check Mode
In
Check Mode
the seismic normality of the underground will be controlled. The
transmitter
is not activated and does not generate any vibrations into the ground. The purpose of this
measurement is to recognize perturbing seismic interferences and finally to avoid falsified
measurement results in
Scan Mode
.
Imagine that there are construction works in the surrounding area and large machinery like
dredges are excavating a foundation. There are many vibrations in the ground, which could
influence the measurement in a negative way. If you proceed a measurement in
Check Mode
under these circumstances you may recognize a large amplitude.
These seismic perturba-
tions, caused by the heavy machinery will give negative results in the measurement of
Scan Mode
.
In such a case the measurement has to be done on a later moment, when all perturbations are
disappeared.
To start the measurement select operating mode
Fast Scan Mode
or
Deep Scan Mode
inside the
main menu and confirm your selection with the button
. No matter which operating mode
OKM Ortungstechnik GmbH
