DeWalt DCT418S1 Instruction Manual page 20

SITUATION PROBABLE CAUSE
No materials • Too narrow of area
detected or difficulty mapped
in detecting objects
• Difficulty in scanning
below special wall
condition
Difficulty in detection • Metal items too
of metal deep
Seemingly false • Metal items such
metal detection as jewelry are too
close to sensor
area
Difficulty in scanning • Double or triple
near door or studs are common
windows around doors and
windows
SOLUTION
• Re-map larger area Area of voltage
detected is larger
• Scan slowly
than anticipated
• Scan in a straight line
• Review special wall
conditions section of
the manual
• Scan in both the
horizontal and vertical
Electrical voltage
directions
not detected in area
• Ensure that the unit
where it was thought
is at least 6" away
to be
from the wall when
powering on.
• Scan in both
horizontal and vertical
straight lines. Metal
sensitivity is increased
when the metal object
Low confidence
is parallel to the
meter reading
sensor.
• Remove jewelry &
re-scan
Received error
• Detect outer edge
message: Too fast
instead
Received error
message: Lost
surface contact
Cannot get a center
line to appear
18
SITUATION PROBABLE CAUSE
• Static charge may
be present on the
wall surface
• Wires are shielded
by metal conduit
• Wires are deeper
than 3 inches
• Wires are not live
• Cannot scan
below special wall
condition
• Scanning in a non-
straight line
• Scanning too fast
• Difficulty scanning
below special wall
condition
• Scanning too fast
• Hand-held radar
scanner lifted off
wall surface
• Wall is thick or
dense
SOLUTION
• Scan a smaller area
• Turn off the electrical
circuit and identify
metal wire instead
• Place your free hand
on the wall to drain
static
• Review identified
metal in scanning
window to determine
metal conduit
• Plug an item into a
wall outlet to verify live
circuit
• Review special wall
conditions section of
manual
• Scan slowly
• Scan in a straight line
• Review special wall
conditions section of
the manual
• Scan slowly
• Re-map area and
repeat scanning
• Review special wall
conditions section of
manual