Bosch D-TECT 100 Operating Instructions Manual page 17

Examples of Measured Results (see fold-out page)
An object runs vertically in the wall
A
With several horizontal measuring passes one under the other, an ob-
ject is indicated in each case. The markings of the object are vertically
one below the other. For vertical measuring passes in the same area,
no indication results.
An object runs horizontally in the wall
B
For horizontal passes in the examined area, no indication results. For
several vertical measuring passes side by side in the same area, an ob-
ject is indicated in each case. The marking of the object are next to
each other.
Point-shaped object (e.g. screw)
C
For several horizontal and vertical measuring passes over the same ar-
ea, an object is indicated only at a single location in each direction. The
markings of the object cross each other at the same location.
On the basis of the measured results, several objects occurring at reg-
ular intervals (e.g. reinforcing iron, hollow space in blocks) can be dis-
tinguished from individual objects (e.g. mains wiring). For this purpose,
make passes over a large measurement area and compare the results.
Localisation of Objects
For the localisation of an object, move the unit in the direction of travel
toward the object until the middle line g of the unit in the display is ex-
actly over the middle line h of the object found. The object in then lo-
cated exactly under the middle of the unit. With the help of the aligning
aid 9, the position of the object can be marked (Fig.
The marking can also be made with the aid of the outer edge of the unit
(Fig. , with reference to line f).
Changing the Measurement Indication
The unit displays the measured results to a depth of 6 cm as standard.
This setting is especially suitable for light construction, wood or wood-
en tile walls for which interfering objects such as, for example, empty
spaces make the measurement display unreliable for depths greater
than 6 cm.
With renewed pressing of the "mode" button 8, the unit switches back
again to the standard setting. The selected setting remains active until
the unit is switched off.
After renewed switching on of the unit, the standard measurement
depth of 6 cm is again displayed.
1 609 929 C66 • (02.03) T
Example: In the illustration, three evenly
spaced objects with an associated drilling
depth of 4 cm are recognisable that, as a
result of their position and depth, can be
assumed to be reinforcing iron. The fourth
object at 2 cm depth can be, for example,
a mains cable.
By pressing the "mode" button 8 during
the measurement, the display of the
measured results can be extended to
10 cm depth. This is recommended es-
pecially for concrete and other solid wall
materials without air pockets (such as, for
example, solid lime-sandstone blocks).
English–5
).