Denver MET-110, Руководство пользователя

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Sweep slowly, as hurrying will make you miss targets.
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Sweep the search coil from side to side in an arc line of 3 inches
(7.5 cm) motion and keep it parallel to the ground.
Factors that affect detection
Accurate detection results are difficult to achieve. It takes practice to
get the best detection results. Sometimes detecting may be
restricted by certain factors.

If there is interference from other instruments or electrical
cables, TV or radio in your search area, lower the sensitivity, or
change the current search area.
 When searching in a highly mineralized area, the metal detector
will sound even if there is no metal. In this case, you can reduce
the sensitivity and increase the height between the search coil
and the ground until the false signal disappears. If necessary,
reset the DISC control knob.
 When searching in a trash area, set the DISC control knob to 11
o'clock, so that the metal detector can skip most of invaluable
metal targets such as nails and small trashy iron.
 Move away any metal digging tool when searching.
 The sensitivity level is generally set contrary to that of
discrimination. The higher the sensitivity level is, the worse
discrimination will be. But you can reduce the sensitivity level to
achieve better discrimination.