Operation Manual

18 | English
1 619 929 J48 | (1.7.11) Bosch Power Tools
Localisation of Objects
To localise objects, moving over the measuring path once is
sufficient.
When no object has been found, repeat the motion perpen-
dicular to the initial measuring direction (see “Method of
Operation”, page 16).
For precise localisation and marking of an object, move the
measuring tool back over the measuring path.
When an object is indicated centrally below the centre line k
in display 16, as in the example, you can mark it coarsely with
the top marking aid 1. This mark, however, will only be pre-
cise, when the object is positioned exactly vertical in the wall,
as the sensor range is located somewhat below the top mark-
ing aid.
For exact marking of the object on the wall, move the measuring
tool left or right until the found object is positioned below one of
the outer edges. When the found object, as an example, is indi-
cated centrical below the dashed right-hand line g in display
16, you can mark it precisely with the right marking aid 3.
The direction of a found object in a wall can be determined by
carrying out several offset measurements one after another
(see figure I and “Examples for Measuring Results”, page 20).
Mark and connect the respective measuring points.
By pressing the start button 11, the display of the objects found
can be deleted at any time and a new measurement started.
f Before drilling, sawing or routing into a wall, protect
yourself against hazards by using other information
sources. As the measuring results can be influenced
through ambient conditions or the wall material, there may
be a hazard even though the indicator does not indicate an
object in the sensor range (no audio signal or beep and and
the LED 17 lit green).
Changing the Operating Modes
Changing between different operating modes is possible with
selection buttons 10 and 12.
– Briefly press selection button 10 to select the next operat-
ing mode.
– Briefly press selection button 12 to select the previous op-
erating mode.
By selecting the operating modes, you can adapt the measur-
ing tool to different wall materials. The current setting is al-
ways shown in the operating-mode indication h of the display.
Concrete Universal (preset)
The operating mode “Concrete Universal” is suitable for
most applications in brickwork or concrete. Plastic and metal
objects as well as electrical wiring are displayed. Hollow spac-
es in brickwork or empty plastic pipes with a diameter of less
than 2 cm are possibly not displayed. The maximum measur-
ing depth is 8 cm.
Concrete Wet
The operating mode “Concrete Wet” is particularly suitable
for applications in wet concrete. Reinforcing steel, plastic and
metal pipes, as well as electrical wiring are displayed. Differ-
entiating between “live” and voltage-free conductors is not
possible. The maximum detection depth is 6 cm.
Please observe that concrete requires several months to dry
completely.
Concrete Special
The operating mode “Concrete Special” is particularly suita-
ble for detecting objects embedded deep in reinforced con-
crete. Reinforcing steel, plastic and metal pipes, as well as
electrical wiring are displayed. The maximum measuring
depth is 15 cm.
When too many objects are displayed, it may be possible that
you are moving directly alongside a reinforcement rod. In this
case, place the measuring tool a few centimetres aside and try
again.
Panel Heating
The operating mode “Panel Heating” is particularly suitable
for detecting metal, metal-composite and water-filled plastic
pipes, as well as for electrical wiring. Empty plastic pipes are
not displayed. The maximum measuring depth is 8 cm.
Drywall
The operating mode “Drywall” is suitable for finding wooden
beams, metal framing and electrical wiring in drywalls (wood,
gypsum board, etc.). Filled plastic pipes and wooden beams
are displayed identically. Empty plastic pipes are not detect-
ed. The maximum measuring depth is 8 cm.
Metal
The operating mode “Metal” is suitable for detecting metal
objects and “live” conductors when other operating modes in
different wall situations do not provide satisfactory results. In
such cases, the detection results will be more extensive, yet
less precise.
Signal View Mode
The operating mode “Signal View” is suitable for all materi-
als. The signal strength at the corresponding detection posi-
tion is displayed. In this operating mode, objects close to
each other can be precisely detected and complicated mate-
rial structures can be better evaluated based on the charac-
teristic of the signal. The maximum detection depth is 6 cm.
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OBJ_BUCH-1478-001.book Page 18 Friday, July 1, 2011 8:48 AM