Hilti PS200 Ferroscan, Operating Instruction, Page: 50 / 315

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7.2.5.2 Quickscan with accurate depth
measurement
The measuring mode "Quickscan with accurate depth
measurement" is selected by pressing the
Confirm but-
ton .
The diameter must be known and previously entered.
In addition, the value for the spacing between bars must
also be entered if it lies between >36 and <120 mm.
-NOTE-
Bar spacing of 36 mm or less cannot be measured.
This can be calculated automatically using the Quickscan
detection function by searching for the center of the bar
and pressing the red
Record button when the scanner
is over the mid point of the bar. Next, search for the mid
point of the next bar and again press the
Record but-
ton . Bar spacing is then calculated automatically and
recorded. If the spacing is known, the value can also be
entered manually.
After setting the bar diameter and bar spacing, the scan-
ning procedure is identical to the procedure described
at 7.2.5.1.
7.2.5.3 Quickscan recording
To record the position and depth of all reinforcing bars
detected, place the scanner on the surface and use
Quickscan detection to find a position where there are
no bars present. Mark the starting point with a PUA 70
marker and press the
Record button . The diskette sym-
bol appears on the screen, indicating that the scanner
is recording data. Move the scanner over the surface.
At the end of the scan, take care to ensure that the end
point is not directly over a rebar. To stop recording, press
Record again. Use a PUA 70 marker to mark the end of
the stretch that has been scanned.
-NOTE-
Reinforcing bars that lie perpendicular to the direction
of travel will be detected and automatically recorded.
Ensure that the settings are correctly set before begin-
ning recording.
-WARNING-
Always carry out an Imagescan prior to Quickscan record-
ing in order to:
– establish the direction of the uppermost layer of rein-
forcement,
– minimize the risk of measuring on a spliced bar,
– and immediately see if there are any ferrous materials
in the concrete that may affect the accuracy of the result.
-CAUTION-
Do not press Record before placing the scanner at the
point where the scanning should begin. Failure to do
this may result in incorrect or misleading measurements.
Up to 30 m (98 ft) can be recorded before it is neces-
sary to transfer the data to the monitor. It is also possi-
ble to record several separate stretches (max. 10) that
add up to a maximum of 30 m.
Printed: 07.07.2013 | Doc-Nr: PUB / 5070389 / 000 / 00