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other types of metal can be indicated in the
different categories. The metal detector can
eliminate or indicate the presence of most
common objects of scrap metal, but cannot
reliably classify all buried objects.
DEPTH READING
The depth reading is reliable for coin sized
objects. The relative depth of the target is
indicated. The depth reading is less reliable for
large and/or irregularly shaped objects. The
depth reading is activated when the search coil
is moved over an object and remains activated
until some other object is indicated. Repetitive
indications at the same depth indicate a
correct target reading. If the depth reading
varies for each passage there can be more than
one target object in the area. Try moving the
search coil in different directions over the area.
With practice the user learns to distinguish
between correct indications, indications of
several targets and very irregular indications
that point towards scrap metal or irregularly
shaped objects.
NOTE:
Depth readings in the air deviate from depth
readings in the ground.
TESTING
In addition to the objects given here you can
do tests with target metals similar to the ones
you are looking for.
Testing indoors
For this test you need:
• 1 nail
• 1 25-cent coin
• 1 1-cent coin (after 1982)
1. Start the machine.
consistently when the search coil is moved over
the area then the target probably consists of
scrap metal or oxidised metal. With practice
the user learns to only dig when the signal is
repeated. The identification also becomes less
reliable as the distance between the target and
the search coil increases.
Gold
Gold objects are indicated on the left side of
the display. How gold objects are indicated
depends on their size. The smaller the object
is, the further to the left they are shown. Small
gold objects are indicated on the far left side
(under iron objects), large gold objects under
S-caps or Zn.
Iron
Objects containing iron are shown on the far
left on the display. Objects in this category can
be scrap metal or more valuable iron relics.
• 5¢: 5-cent coins and most newer can rings
(those that stick to the can) are indicated
here.
• Can rings: Can rings from older canned
drinks are indicated here. Some newer
can rings and many gold rings are
indicated here. S-CAPS Screw caps and
some smaller gold objects are indicated
here.
• 1¢: 1-cent coins (after 1982) and copper
coins are indicated here.
Silver
• 10¢/1¢: 1-cent coins (before 1982), 10-cent
coins and aluminium coins are indicated
here.
• 25¢: 25-cent coins, some silver coins and
larger aluminium coins are indicated here.
• 50¢: 50-cent coins and some larger silver
coins are indicated here.
The target indications serve as guidance. Many
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