16 | English
1 609 92A 26Y | (4.3.16) Bosch Power Tools
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
Protectthemeasuring toolagainst 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-
justtothe ambient temperature before switching iton.
In case of extreme temperatures or variations in tempera-
ture, the accuracy of the measuring tool and the display in-
dication can be impaired.
Donotattachanystickersorname-platestothesensor
area9on 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 mastsormicrowaves,
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)
Themeasuringtoolchecksthe
basematerialofsensorarea 9
inmeasurementdirectionAto
the displayed measuring
depth. Measurement is possi-
ble only during movement of
the measuring tool in the di-
rection of travel Band for a
measuring distance of at least
10 cm. Move the measuring
tool in a straight line with
light pressure over the wall
so that the wheels remain in
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.
Optimumresultsareachieved 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
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.
Thisappliesparticularlyforvery thin objects, whicharerepre-
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)
–Reinforcingsteel
– Wooden beams
–Hollowspaces
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
–Moistwalls
– Metal surfaces
– Hollow spaces in a wall; these canbe indicated as objects
– Closenessto equipmentthat generates strong magneticor
electromagnetic fields, e.g. radio base stations or genera-
tors
Initial Operation
Protectthemeasuring toolagainst moisture and direct
sun light.
Switching On and Off
Beforeswitchingthemeasuringtoolon,makesurethat
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.