Operation Modes; Measuring Procedure - Bosch 3 601 K81 3 Series Originalbetriebsanleitung

OBJ_BUCH-2149-003.book Page 16 Wednesday, October 12, 2016 12:52 PM
16 | English
When no button on the measuring tool is pressed for approx.
5 minutes and when no objects are detected, the measuring
tool automatically switches off to save the battery.
Switching the Audio Signal On/Off
The audio signal can be switched on/off with the audio signal
button 5 . When the audio signal is switched off, the dis-
play 3 indicates the information c.
Method of Operation (see figure B)
The measuring tool checks the base material of the sensor ar-
ea 14 in measurement direction A. Objects are detected that
differ from the material of the wall.
Always move the measuring tool over the base material apply-
ing light pressure, without lifting it off or changing the pres-
sure. The measuring tool can be moved in any direction B.

Operation Modes

As soon as the measuring tool is switched on, you can switch
between different operating modes.
By selecting the operating modes, you can adjust the measur-
ing tool to different wall materials and, if required, suppress
unwanted objects.
If the wall material is not known, you should begin with the
Universal mode.
The selected operating mode is indicated by the illuminated
button.
Universal (preset)
The operating mode "Universal" is suitable for
most applications in masonry. Metal objects, wa-
ter-filled plastic pipes, electrical lines and cables
are indicated. Cavities in building brick or empty
plastic pipes with a diameter of less than 2 cm may not be dis-
played. The maximum measuring depth is 6 cm.
Concrete
The operating mode "Concrete" is especially suit-
able for applications in reinforced concrete. Re-
bars, metal pipes, water-filled plastic pipes, elec-
trical lines and cables are indicated. The
maximum measuring depth is 12cm.
Drywall
The operating mode "Drywall" is suitable for de-
tecting joists, metal supports, electrical lines and
cables in drywalls (wood, plasterboard, etc.).
Water-filled plastic pipes are also indicated.
Empty plastic pipes are normally not detected.
The maximum measuring depth is 6 cm.

Measuring Procedure

Locating objects
Position the measuring tool on/against the surface being in-
spected.
If there is already an object below the measuring tool when it
is placed down, the LED 2 lights up red if there is sufficient
signal strength, the measuring indicator h deflects and a sig-
nal sounds.
1 609 92A 212 | (12.10.16)
If an object has not yet been detected when the measuring
tool is placed down, the procedure indicator j
played and the LED 2 lights up yellow. Move the measuring
tool over the surface without lifting it off, until the procedure
indicator j disappears. The LED 2 then lights up green at plac-
es where the measuring tool has not detected an object.
When the measuring tool approaches an object, the deflec-
tion in the measuring indicator h increases and the LED 2
lights up red. The deflection decreases when the measuring
tool moves away from an object.
With small or deep-lying objects, the LED 2 can continue to
light up yellow and the signal does not sound.
Determining the object's centre
If an object is detected, the LED 2 lights up red and, if there is
sufficient signal strength, the orientation arrows k for deter-
mining the object's centre are displayed. To specifically lo-
cate the object's centre, move the measuring tool in the direc-
tion of the orientation arrows k. If the orientation arrows are
not displayed, an object may nevertheless be located in the
immediate vicinity.
The measuring indicator h indicates the maximum deflection
when it is positioned over the centre of an object, the LED 2
lights up red and, if there is sufficient signal strength, the cen-
tre cross i is displayed. To determine the object's centre more
accurately, note the square which is shown in the immediate
vicinity of the object's centre in addition to the centre cross i
if there is sufficient signal strength.
Wider objects in the base material can be identified by a con-
tinuous, high amplitude of the measuring indicator h. The LED
2 lights up red.
 Always pay attention to all the signals of the measuring tool
(LED, measuring indicator, orientation arrows).
To rule out hazards, safeguard yourself before you drill, saw
or rout in walls, by means of other information sources. Since
the measuring results can be influenced by ambient condi-
tions or the wall material, there may be a hazard even though
the indicator does not indicate an object in the sensor range
(there is no signal sound and the LED 2 lights up green).
Power Cable
If a live wire is detected, the display 3 also indicates a
The LED 2 flashes red and the signal sounds with a quick tone
sequence.
Notes:
"Live" conductors are indicated in any operating mode.
"Live" conductors can be detected easier when power con-
sumers (e.g. lamps, machines) are connected to the sought
conductor and switched on.
Under certain conditions (such as below metal surfaces or
behind surfaces with high water content), "live" conduc-
tors cannot be securely detected. The signal strength of a
"live" conductor depends on the position of the cable. There-
fore, apply further measurements in close proximity or use
other information sources to check if a "live" conductor exists.
is dis-
.
Bosch Power Tools