Bosch D-tect 150 SV Professional Original Instructions Manual page 16

OBJ_BUCH-1478-002.book Page 16 Friday, March 4, 2016 12:24 PM
16 | English
Always replace all batteries/rechargeable batteries at the
same time. Do not use different brands or types of batter-
ies/rechargeable batteries together.
 Remove the batteries/rechargeable batteries from the
measuring tool when not using it for longer periods.
When storing for longer periods, the batteries/rechargea-
ble batteries can corrode and self-discharge.
Operation
 Protect the measuring tool against moisture and direct
sun light.
 Do not subject the measuring tool to extreme tempera-
tures or variations in temperature. In case of large var-
iations in temperature, allow the measuring tool to ad-
just to the ambient temperature before switching it on.
In case of extreme temperatures or variations in tempera-
ture, the accuracy of the measuring tool and the display in-
dication can be impaired.
 Do not attach any stickers or name-plates to the sensor
area 9 on the back of the measuring tool. Especially met-
al name-plates affect the measuring results.
 Use or operation of transmitting systems, such as
WLAN, UMTS, radar, transmitter masts or microwaves,
in the close proximity can influence the measuring
function.
 The measuring values can be impaired through certain
ambient conditions. These include, e.g. the proximity
of devices that produce strong electric, magnetic or
electromagnetic fields, moisture, metallic building ma-
terials, foil-laminated insulation materials or conduc-
tive wallpaper or tiles. Therefore, also observe other in-
formation sources (e.g. construction plans) before
drilling, sawing or routing into walls, ceilings or floors.
Method of Operation (see figure B)
The measuring tool checks the
base material of sensor area 9
in measurement direction A to
A
the displayed measuring
depth. Measurement is possi-
S E S E
N S N S
ble only during movement of
O O R O
the measuring tool in the di-
rection of travel B and for a
9
measuring distance of at least
10 cm. Move the measuring
tool in a straight line with
B
light pressure over the wall
so that the wheels remain in
B
firm contact with the wall.
Objects are detected that
differ from the material of the wall. The object depth and,
if possible, the object material, are indicated on the dis-
play.
Optimum results are achieved when the measured distance is
at least 40 cm and the measuring tool is moved slowly over
the entire location to be checked. The tool's method of opera-
tion ensures reliable detection of outer object edges that run
1 609 92A 26Y | (4.3.16)
transverse to the measuring tool's movement direction.
Therefore, always move crossways over the area to be
checked.
If several objects are located one over the other in the wall,
the object that is indicated in the display is the one nearest to
the surface.
The representation of the properties of detected objects in
the display 16 can deviate from the actual object properties.
This applies particularly for very thin objects, which are repre-
sented thicker in the display. Large cylindrical objects (e.g.
plastic or water pipes) can appear in the display smaller than
they actually are.
Detectable Objects
– Plastic pipes (e.g. water-carrying plastic pipes, as used in
floor/wall-heating systems, with at least 10 mm in diame-
ter; empty pipes with at least 20 mm in diameter)
– Electrical wiring (independent of whether carrying voltage
or not)
– Three-phase mains wiring (e.g. to the stove)
– Low-voltage wiring (e.g. for door bell, telephone
– Metal pipes, bars, beams of any type (e.g. steel, copper,
aluminium)
– Reinforcing steel
– Wooden beams
– Hollow spaces
Measurements possible
– In concrete/reinforced concrete
– In brickwork (bricks, porous concrete, foam concrete, aer-
ated concrete, lime-sand brick)
– In light construction walls
– Under surfaces such as stucco, tiles, wallpaper, parquet
flooring, carpet
– Behind wood, gypsum board
Special Measuring Cases
Based on the measuring priniciple, unfavourable conditions
can influence the measuring result, for example:
– Multi-layered walls
– Empty plastic pipes and wood beams in hollow spaces and
light construction walls
– Objects running inclined in walls
– Moist walls
– Metal surfaces
– Hollow spaces in a wall; these can be indicated as objects
– Closeness to equipment that generates strong magnetic or
electromagnetic fields, e.g. radio base stations or genera-
tors
Initial Operation
 Protect the measuring tool against moisture and direct
sun light.
Switching On and Off
 Before switching the measuring tool on, make sure that
the sensor area 9 is not moist. If required, dry the mea-
suring tool using a soft cloth.
 If the measuring tool was subject to an extreme tem-
perature change, allow it to adjust to the ambient tem-
perature before switching on.
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