Measuring Procedure; Operating Modes - Würth MD 12 Traducción Del Manual De Instrucciones De Servicio Original

Method of Operation
(see figures A–B)
The measuring tool checks the base material of sen-
sor area 12 in measurement direction A to the max.
detection depth (see "Technical Data"). Objects are
detected that differ from the material of the wall.
Always move the measuring tool in a straight line over
the surface applying slight pressure, without lifting it
off or changing the pressure. During measurement,
the contact pads 11 must always have contact to the
surface.

Measuring Procedure

Position the measuring tool on/against the surface
being detected, and move it in direction B. When the
measuring tool comes closer to an object, the ampli-
tude in measuring indicator i increases and ring 1
lights up yellow; when it is moved away from the
object, the amplitude decreases. Measuring indicator
i indicates the maximal amplitude above the centre of
the object; ring 1 lights up red and an audio signal
sounds. For small or deeply embedded objects, ring
1 can continue to light up yellow, while there is no
audio signal.
❏ Wide objects are not indicated by the illu-
minated ring or the audio signal through-
out their complete width.
To localise the object more precisely, move the meas-
uring tool repeatedly (3x) back and forth over the
object. The fine scale k is automatically activated in all
operating modes. Fine scale k indicates a full ampli-
tude when the object is below the centre of the sensor
or when the maximum amplitude of measuring indica-
tor i is reached. In the operating modes "Drywall"
and "Metal", the indication "CENTER" l lights up
additionally.
Wider objects in the base material are detected
through a continuous, high amplitude of measuring
indicators i and k. Ring 1 lights up yellow. The dura-
tion of the high amplitude corresponds approximately
with the object width.
When very small or deeply embedded objects are
being sought and measuring indicator i reacts only
slightly, move the measuring tool repeatedly over the
object in horizontal and vertical direction. Pay atten-
tion to the amplitude of fine scale k, and when in
operating mode "Drywall" and "Metal", addition-
ally to the "CENTER " l indication, which will then
allow for precise detection.
❏ Before drilling, sawing or routing into a
wall, protect yourself against hazards by
using other information sources. As the
measuring results can be influenced through
ambient conditions or the wall material, there may
be a hazard even though the indicator does not
indicate an object in the sensor range (no audio
signal or beep and and the illuminated ring 1 lit
green).

Operating Modes

The best measuring results are achieved through
selection of the operating modes. The maximal detec-
tion depth for metal objects is achieved in the operat-
ing mode "Metal". The maximal detection depth for
"live" conductors is achieved in the operating mode
"Power cable". The selected operating mode can
be recognized at any time via the green illuminated
operating-mode indication 4.
Drywall
The operating mode "Drywall" is suitable for detect-
ing wood or metal objects in drywalls.
Press button 10 to activate the operating mode "Dry-
wall". The operating-mode indication 4 above but-
ton 10 lights up green. As soon as the measuring tool
is positioned against the base material to be detected,
ring 1 lights up green and signals operational readi-
ness.
In the operating mode "Drywall" all object types are
detected and indicated:
• Non-metal, e.g. a wood beam
• Magnetic, e.g. reinforcing steel
• Non-magnetic, but metal, e.g. copper pipe
• "Live", e.g. a "live" conductor
Notes: In the operating mode "Drywall", other
objects, apart from wood and metal objects and "live"
conductors are also detected, such as plastic tubing
filled with water. For such objects, the indication c for
non-metal objects is indicated in display 3.
Nails and screws in the base material may cause a
wooden beam to be indicated as a metal object on
the display.
When display 3 indicates a continuously high ampli-
tude of measuring indicator i and fine scale k, restart
the measuring procedure again by positioning the
measuring tool at a different location on the base
material.
14