White’s Electronics M6 - Manual (Page 19)

17
Some large trash metals, such as pieces of lead, pot
metal, aluminum, tin, brass, copper, or significant
grade iron will produce a good sound regardless of
the DISC control position. An operator should dig
these unusual scrap metals to be successful.
2. Tone I.D.
With the Trigger on the hand grip in the forward
position, and the DISC control set at any typical
rejection level, Tone I.D. is available. Iron, if
accepted by the DISC control setting, produces the
lowest pitched beep. Coin range targets (pennies
and above) produce the highest pitch beep. Seven
different pitch beeps are available for each major
display category. Beep pitch is dictated by where
that specific item indicates on the display. Some
search coil motion is required to achieve detection
and Tone I.D.
The loop must be in motion for metals to respond
and provide accurate discrimination. Each pass of
the loop from left to right (or from right to left)
should overlap the last by at least 50% and take
about two seconds.
NOTE* THE VISUAL I.D. SYSTEM IS OPER-
ATING IN BOTH TOGGLE POSITIONS.
.
Chapter 5 M6 Controls Chapter 5 MXT Controls
Tone I.D.
Forward
Position
Trigger
control on
the hand
grip
Find an outdoor area relatively free of metal to
practice. Place a coin on the ground. Pass the loop
over the coin. Note that some loop movement is
necessary to receive a good clean sound. Note that
if you sweep the loop too slow the coin doesn’t
respond well.