White’s Electronics Classic 5 ID - Manual (Page 6)

Classic® 5 ID
6
VI. Now place a large nail, and/or a steel bottle cap
(not aluminum) on the ground. Sweep the loop over
these metals. Note the inconsistency in the beep, and
that it is a shorter click or has a flutter to the sound. An
operator will soon learn to ignore the clicks or flutter
sounds trash produces and listen for the smooth
consistent beep that coins and other valuable metals
produce.
A. The exact point on the DISC control a trash metal is
rejected will change slightly with the ground condi-
tions. However, the following DISC control range is
typical. (See first graphic on this page.)
C. The most useful range on this control is between
the Ring Range “P” and Coin Range “P” positions. If
when searching at the Ring Range position you feel
you are digging too much trash, adjust slightly
toward the Coin Range and try again. Finding the
lowest (furthest counterclockwise) position that
eliminates the common trash metals in your area is
important in order to find items of jewelry.
D. When a trash metal is being rejected, it will
produce a shorter sounding beep that is typically
inconsistent, a click or flutter-sounding beep. When a
valuable metal is accepted it will produce a consis-
tent, smooth, solid, and longer sounding beep.
E. Some large trash metals, such as pieces of lead, pot
metal, aluminum or tin will produce a good sound
regardless of the DISC control position
IV. Once either Ring Range “P” or Coin Range “P”
has been selected, sweep the round loop very near to
the ground passing it from side to side. The loop
must be swept (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. If the loop is swept very very slowly or is
stopped, the detector may not respond to metal.
V. At this point, it is a good idea to find an area out-
of-doors 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.