Tip 1: Manual calibration should be performed near the place
found last as shown in Image B/C. Repeat this step as needed.
Tip 2: Because of static charges, electric fields may be detected
at the side of the actual position of the wire. To carry away
these charges, lay your free hand on the wall.
Tip 3: Move the tool slowly as friction can generate interfering
electric charges.
Tip 4: If you suspect that wires must be present but cannot
find any, this may be because they are shielded in conduits.
Use METAL-SCAN in order to localise conduits.
Tip 5: Metal in walls (e.g. metal studs) transmit electrical fields
and may therefore cause interference. In this case, switch to
METAL-SCAN in order to find the wire.
Tip 6: The position where you start is important: To achieve
maximum sensitivity, start by placing the device in a position
which is known not to be near live wires.
Note: If an object is deep inside a wall, the device may not
indicate it clearly.
!
Wires which are at a depth of more than 20 mm may
not be detected.
8
Measuring in STUD-SCAN mode
Detecting wooden wall beams and joists
as well as metal in drywall structures, e.g.
under gypsum fibreboard, wood panels
or other non-metallic cladding.
– Select STUD-SCAN (button e).
– Now follow the instructions on the
VTN display.
– ON WALL: Place the tool against the wall.
– PRESS CAL: Press the calibration button (d) and wait until
calibration is completed: CAL OK
– MOVE: Move the tool slowly across the surface.
22
EN