Nexus Standard Mk II User Manual page 14

clockwise direction, very slowly until the salt water signals turn into small
clicks. Keep the Ground Balance know in position where the ground
minerals are usually cancelled (balanced out).
Discriminating Against Large Metal Objects (leaving only the smaller
ones) and Special Gold Nugget hunting setting.
There are some conditions where only small targets are required in a
particular search; desirable targets such as gold nuggets or tiny coins.
These are especially difficult to search for in contaminated conditions or in
the presence of mineralised soils.
To remove all large targets and leave only the desired very small objects,
make sure that the Discrimination level is set to allow your desired small
targets to be in the range of good (non-ferrous) targets. Turn on the Iron
Rejection Mode using the toggle switch under the control box; this switch is
moved to the LEFT
Begin swinging the coil over any target that you wish to remove from the
audio responses. While swinging the coil, start turning the Ground Balance
knob anti-clockwise position as slowly as possible. Keep doing so until all
large targets and minerals are removed and only the gold nuggets and
smallest non-ferrous objects are left for detection.
The Nexus Standard Mk II is now ready for hunting only those small
targets.
Note: Gold nuggets and all small targets are best detected at the standard
ground balance setting in All Metal Mode. This procedure is only
recommended in severe contamination or bad mineral conditions. As
setting the detector in this way will result in a high discrimination setting,
while rejecting all large targets, there will be also a loss of depth for the
remaining small targets as much as 50%.
Discriminating Against Small Targets and leaving only larger metal
objects.
Many treasure hunters have been looking for the perfect metal detector.
One of those aims is for a detector that is capable to ignore or not detect at
all small metal objects such as coins, bottle caps even ring-pulls and detect
only larger metal targets such as hoards, metal pots, helmets, shields etc.
To reject all small metal targets after proper Ground balance is been done
turn the Iron Rejection Mode on, the Mode switch to the left.
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