wish to eliminate much more non-
ferrous metals of earth surface, the
pot must be set in a position over 7.
If you come upon non-ferrous
metals /gold, silver, copper, bronze/
a deep-toned sound can be heard;
and if you come upon ferrous
metals a break or a short sound is
heard.
2. Using a ,,VCO” discrimination:
- Set the switch ,,VCO” in a
position ,,ON”, and ,,AUDIO
DISC” in a position ,,OFF’’, the pot
,,DISC LEVEL” in a position 3. If
you need to eliminate more non-
ferrous metals over the ground, set
the pot in a position over 7.
If you come upon non-ferrous
metals /gold, silver, copper, bronze/
a high sound can be heard; and if
you come upon ferrous metals a
low sound is heard.
fig.2
Searching metal objects is made by
moving search coil toward ground
surface /fig.2; fig.3/.
fig.3
Precise position of a metal can be
fixed with the help of movements of
searching coil into two
perpendicular axes.
* Recharging the batteries.
Batteries possess about 500-600
cycles of re-charge before they
damage, but these are values that
can be reached in certain laboratory
conditions. The detector is supplied
with NiMh batteries. Before start
