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How it works (seefigureB)

The measuring tool checks the base material of the sensor area(13) in the measurement

direction A up to the maximum detection depth. Objects that are different from the ma-

terial of the wall are detected.

Move the measuring tool in a straight line in direction B over the wall.

Always move the measuring tool over the base material applying light pressure, without

lifting it off or changing the pressure.

During the measurement, the contact pads(12) must always remain in contact with the

surface.

Measuring process

Place the measuring tool on the surface to be examined and move it in direction B.

– When the measuring tool approaches an object, the amplitude in the measuring

indicator(i) increases and the light-up ring(1) lights up yellow.

– The amplitude decreases when the measuring tool moves away from the object.

– Above the centre of an object, the measuring indicator will indicate maximum amp-

litude; the light-up ring(1) will light up red and an audio signal will sound.

For small or deep-lying objects, the light-up ring(1) can continue to light up yellow

without the audio signal sounding.

u Wide objects are not indicated by the light-up ring or the audio signal throughout

their complete width.

In order to locate an object more precisely, move the measuring tool repeatedly (3×)

back and forth over the object. The fine scale(j) is activated automatically in all operat-

ing modes. The fine scale indicates a full amplitude when the object is below the centre

of the sensor or when the maximum amplitude of the measuring indicator(i) is reached.

In Drywall and Metal operating modes, the object centre indicatorCENTER(k) also lights

up.

Wider objects in the base material can be identified by a continuous high amplitude of

the measuring indicator(i) and fine scale (j). The light-up ring(1) will light up yellow.

The duration of the high amplitude corresponds approximately with the object width.

If very small or deep-lying objects are being sought and the measuring indicator(i) reacts

only slightly, move the measuring tool repeatedly over the object in a horizontal and ver-

tical direction. Pay attention to the amplitude of the fine scale(j) and, when in Drywall

and Metal operating modes, to the object centre indicator CENTER(k) as well, which will

then allow for precise detection.

u Before drilling, sawing or routing into walls, refer to other sources of informa-

tion to ensure that you eliminate hazards. As the measuring results can be influ-

1 609 92A 5DB | (23.02.2021) Bosch Power Tools