User's Manual

You cannot search in the All Metal and Non-Motion modes (except for
the Ground Anomaly & Cavity) without ground balancing. You need to
use one of the discrimination modes and increase the Discrimination
value until the noise is eliminated.
4) Once the ground balance is set, it will remain satisfactory for a
long time in most areas. However, if you encounter an excavated,
backfilled or geologically composite soil structure, ground balancing
should be performed again to adapt to the varying soil structure.
In addition, re-ground balancing is recommended if you change the
operating frequency of the INVENIO Pro in
certain ground conditions.
12
IDs of non-ferrous metals such as copper, silver, aluminum and lead
are high. Target ID range of gold is wide and may fall within the same
range of metal wastes such as iron, foil, screw caps, and pull tabs.
Therefore, if you are looking for gold targets, digging out some trash
metals is expected.
NOTE : Keep in mind, large targets will ID higher than expected, even
though they may be of lower conductance.
TARGET ID is the number produced by the metal detector based on the
conductivity of the metals and gives an idea to the user about what the
target may be. Target ID is shown with two digits on the display and
ranges between 00-99.
In some cases, the device may produce multiple IDs for the same
target. In other words, the IDs may be jumpy. This may result from
several factors. Target orientation, depth, purity of the metal, corrosion,
mineralization level of the soil etc. Even the direction of the search coil
swing may cause the device to generate multiple IDs.
In some cases, the device may fail to provide any ID. The device needs
to receive a strong and a clear signal from the target in order to provide
an ID. Therefore, it may not be able to provide an ID for targets at fringe
depths or smaller targets even if the device detects them.
Keep in mind that target IDs are “probable”, in other words, estimated
values and it would not be possible to know the properties of a buried
object exactly until it is dug out.
5) When using the optional large coil, pump the coil more slowly and
do not keep it very close to the ground.
6) In some cases where the Stabilizer value is set high, the device may
not be able to ground balance automatically. In such a case, first lower
the Stabilizer value and after ground balancing switch it back to its
previous level.
7) If the vibration feature is enabled, even if you are using one of the
non-motion modes where this feature is not active, the device would
vibrate during ground balancing because it switches to All Metal mode
to perform the ground balance.
TARGET ID
GROUND BALANCE