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16 | English
By selecting the operating mode, you can adjust the measur-
ing tool to different wall materials and, if required, prevent
the detection of unwanted objects.
If the wall material is not known, you should begin with the
universal operating mode.
Universal operating mode
The universal operating mode is suitable for
most applications in masonry. Metal objects,
water-filled plastic pipes, electrical lines and
cables can be detected. Hollow spaces in brick-
work or empty plastic pipes with a diameter of
less than 2 cm remain potentially undetectable. The max-
imum measuring depth is 6 cm.
Concrete operating mode
The concrete operating mode is particularly
suitable for applications in reinforced con-
crete. Rebar, metal pipes, water-filled plastic
pipes, electrical lines and cables can be detec-
ted. The maximum measuring depth is 12 cm.
Drywall operating mode
The drywall operating mode is suitable for de-
tecting timber joists, metal supports, electrical
lines and cables in drywalls (wood, plaster-
board, etc.). Water-filled plastic pipes can also
be detected. Empty plastic pipes normally can-
not be detected. The maximum measuring depth is 6 cm.
How it works (see figure D)
The measuring tool checks the base material of the sensor
area (14) in the measurement direction A up to the max-
imum detection depth. Objects that are different from the
material of the wall are detected.
Always move the measuring tool over the base material ap-
plying light pressure, without lifting it off or changing the
pressure.
The measuring tool can be moved in any direction B.
Measuring process
Position the measuring tool on/against the surface being in-
spected.
If there is an object below the measuring tool when it is set
down, the indicator light (12) lights up red if there is suffi-
cient signal strength, the measuring indicator (e) deflects
and an audio signal sounds.
If no object is detected when the measuring tool is set down,
the proceed indicator (b) is displayed and the indicator
light (12) lights up yellow. Move the measuring tool over the
surface without lifting it off, until the proceed indicator dis-
appears.
If no object is detected below the measuring tool, the indic-
ator light (12) lights up green.
When the measuring tool approaches an object, the deflec-
tion in the measuring indicator (e) increases, the indicator
light (12) lights up red and an audio signal sounds. When it
moves away from the object, the deflection in the measuring
indicator decreases.
1 609 92A 7KZ | (25.04.2022)
For small or deep-lying objects, the indicator light (12) can
light up yellow without the audio signal sounding.
Wider objects in the base material can be identified by a con-
tinuous high deflection of the measuring indicator (e). The
indicator light (12) lights up red.
Before drilling, sawing or routing into walls, refer to
u
other sources of information to ensure that you elim-
inate hazards. As the measuring results can be influ-
enced through ambient conditions or the condition of the
wall, there may be a hazard even though the measuring
indicator (e) does not indicate an object in the sensor
range and the indicator light (12) lights up green.
Determining an object's centre
If an object is detected, the signal light (12) will light up red.
With sufficient signal strength, the orientation arrows (d) are
displayed to determine the object's centre.
To locate the object's centre, move the measuring tool in the
direction of the orientation arrow (d) displayed.
Over the centre of an object, the measuring indicator (e) will
exhibit maximum deflection, and with sufficient signal
strength, the centre cross (c) will appear. The orientation
arrow (d) will also disappear.
For a more accurate location of the object's centre, pay at-
tention to the square; if there is sufficient signal strength,
this will be shown in the immediate vicinity of the object's
centre in addition to the centre cross (c).
If the orientation arrows (d) are not displayed, an object may
nevertheless be located in the immediate vicinity.
Always check all the signals of the measuring tool (in-
u
dicator light, measuring indicator and orientation ar-
rows for locating the object's centre).
Indicator for live wires
The scan for live wires takes place automatically for each
measurement (regardless of the operating mode).
When a live wire is detected, the indicator for live wires (a)
appears in the display, the indicator light (12) flashes red
and the audio signal sounds at a faster rate.
Notes:
– In certain conditions (such as behind metal surfaces
or behind surfaces with high water content), live
wires cannot always be detected. The signal strength of
a live wire depends on the position of the cable. There-
fore, take further measurements in close proximity or use
other information sources to check if a live wire is
present.
– Static electricity can cause wires to be detected inaccur-
ately (e.g. over a large area) or prevent them from being
detected at all. To improve the detection, place your free
hand flat on the wall next to the measuring tool, in order
to remove the static electricity.
– Live wires can be detected more easily when power con-
sumers (e.g. lamps, appliances) are connected to the
wire being sought and switched on. Switch off electricity
consumers before drilling, sawing or milling into the wall.
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