8
again. Repeat the above steps until you find the target. After you find the target,
set mode to DISC or TONE to determine which kind of metal the target is.
3.
DISC—
in this mode, unit discriminates the metal type with different tones, say
short, long or silence. Set the DISC mode switch to “0”. Slowly rotate the
control clockwise to high position to reject objects you don’t want. At different
DISC position, unit can reject different undesired objects.
When DISC/TONE is set to 0, unit will respond to any metal object with a long
tone; As the control is rotated clockwise, the unit will sound a short tone, or
even be silent to ferrous metal objects. This means the ferrous metal is
rejected. Further rotate the control clockwise. Nickel, zinc, and copper will be
rejected. When the control is set to 10 position, most metal objects are
rejected, except silver. At 10 position, unit will respond with “du” tone to silver.
4.
TONE
—in this mode, unit discriminates different metal objects with high or low
tone. For object to be rejected, it sounds a low tone which is different from in
DISC mode. When DISC/TONE is set to 0, it sounds a high tone to any metal.
But as it is rotated to high position, it sounds a low tone to ferrous metal, nickel,
zinc, or copper. But it still sounds a high tone to silver.
To have a better identification, user has to practice more.
5.
Notes:
1.
If there is interference from similar metal detectors in your searching area,
you can lower the sensitivity or change the current searching area.
2.
If there is interference from other instruments or electrical cable or TV or
radio in your searching area, you can lower the sensitivity or change the
current searching area.
3.
When searching in highly mineralized area, the unit will sound even if there’s
no metal. In this case, you can lower the sensitivity and set discrimination to
high position as well as increase the height between the search coil and the
ground until the false signal disappears. As to the position of “DISC”, you
have to put a metal sample in highly mineralized earth or wet sand for
testing before setting it.
