User's Manual

11
3) Push the ground balance trigger forward once and release it. The
ground balance screen will open up and stay on screen for a while.
You can return to the ground balance screen by pushing the ground
balance trigger forward if the screen switches.
Manual ground balance functions within the range of 0,00 -99,80.
However, each value covers 5 steps used for fine tuning within itself
and these steps are indicated as multiples of 20.
Press plus ( + ) or minus ( - ) button to increase or decrease the ground
balance value, respectively. If the button is pressed once at a time, the
values count one by one and if it is held down, the values will change
quickly.
4) Repeat the above procedure until the sound heard from the ground
is eliminated.
The sound may not be eliminated completely in some areas. In these
cases, listen to the sounds produced when moving the search coil
towards and away from the ground to check if the ground balance
is correct. If there is no difference between the two sounds then the
ground balance is set properly.
The device will return to the detection screen automatically after a
short period of time upon completion of ground balance. If you do not
wish to wait for the timeout period, just pull and release the trigger
once to go to the detection screen instantly.
IMPORTANT! Experienced detectorists adjust the ground balance
setting to a slightly positive response (weak but audible sound is
produced when moving the search coil closer to ground). This method
may produce favorable results for experienced users in certain fields
where small targets are searched for.
Tracking
This feature is present in the Motion modes only and not available in
the Non-motion modes.
In this option, the user does not need to make any adjustments.
Tracking feature is activated by selecting it from the settings of the
motion modes and by switching it to on position. The word ''Tracking''
will be displayed in green at the bottom of the ground balance window.
The device updates the ground balance automatically as long as the
search coil is swung over the ground and shows the ground balance
value in the ground balance window. It does not provide any feedback
to the user (like the beep sound in automatic ground balance).
While tracking is active, the device can initially produce a loud signal
when it detects a different ground structure (for instance a mineral
rock) or a target. In this case, swing the search coil over the spot where
the device produces the signal . If the sound remains the same and
the device shows an ID, it is possibly a target. If the sound attenuates
too much or is lost after a few swings, it means that the device has
produced a signal for the different ground structure or a stone.
NOTE : It is recommended that you use tracking in the All Metal mode
and not in the discrimination modes.
NOTE : Tracking is not a mode specific setting, when it is turned on it
will be active in other motion modes as well. If you switch to one of the
non-motion modes while tracking is on, it will be turned off and once
you switch back to a motion mode, it will be active again automatically.
Tracking is suitable for use in areas where different soil structures are
present within the same land or in fields where mineralized rocks are
scattered widely apart. If you use ground tracking in areas where hot
rocks are intensely present, the device may not be able to eliminate
these highly mineralized rocks or you may miss the smaller or deeper
metals.
IMPORTANT! Ensure that tracking is off during air tests. Otherwise,
the device will attempt to perform ground balance on the target and
the depth will be reduced.
Ground Balance Value
Ground balance value provides information about the ground you are
searching on. Some typical ground types are as follows :
0-25 Wet salt water or wet alkali soils
25-50 Wet salt water and wet alkali soils covered with dry layers
50-70 Regular, low-quality soils
70-90 Highly magnetic soils, magnetite or maghemite and similar
highly mineralized soils, black sand.
Important Details Concerning Ground Balance
1) Upon start up, the ground balance value is set to 90. The device can
perform ground balance automatically within the following ranges for
each type of search coil :
INV28 search coil : 40,00 - 99,00
INV40 search coil : 20,00 - 99,00
INV56 search coil : 0,00 - 99,00
2) If the ground mineralization is too low, automatic ground balance
may fail. In such a case, you can try manual ground balancing.
3) You can test the accuracy of the ground balance with pinpointing
in motion modes. After ground balancing, if you receive no sound or a
weak one when you move the search coil closer to the ground in the
pinpoint mode, then the ground balance is successful. If the sound
gets louder when you move the search coil closer to the ground, then
the ground balance is not successful. In this case, simply change your
location. If ground balance is not possible despite these efforts, you
should continue your search without performing ground balance.
GROUND BALANCE