Nokta detectors Fors Tech - Manual (Page 21)

4. Continue the above process until the sound is eliminated. If the sound is not completely
eliminated, then you can fine tune.
For fine tuning, follow the numbers above the symbol and use the + and - switches.
The sound may not be eliminated completely on some types of ground although you have
fine tuned. In such a case, to determine whether you have successfully ground balanced or
not, listen to the audio feedback when lowering the search coil to the ground and when
lifting it off the ground. If both sound the same, it means that the ground balance is
adjusted properly.
After a while the ground balance is completed, the device will switch to the main screen
automatically. If you do not want to wait for this period you can go to the main screen by
pressing and releasing the pinpoint button once.
GROUND TRACKING:
With this feature, the user does not need to make any adjustments. Ground Tracking can
be activated by turning the Ground Tracking switch to 1 position. The Ground Tracking
icon ( ) on the LCD panel starts blinking. As long as the search coil is swept over the
ground, the device updates the ground balance setting. It does not provide the user any
kind of feedback ( such as the ground balance value or the beep sound in the auto ground
balance).
When Ground Tracking is active, the device may emit a loud audible signal if the ground
conditions change (for example a hot rock) or if a target is encountered. In such a case,
sweep the search coil a few times over the spot where you receive the signal. If the sound
continues and the device gives an ID, there is a high chance that it is a target. If the sound
gets weaker or disappears after a few sweeps, it means that that the device gave a signal
for the ground change or the hot rocks.
For better performance, we recommend you to use Ground Tracking in the General Search
mode and not in the discrimination (DI2, DI3 and COG) modes.
Ground Tracking is suitable for fields with different types of soils or where hot rocks are
scattered around a large area and not condensed. If you use Ground Tracking in areas
where hot rocks are intensely present, the device may not be able to eliminate these high
mineralized rocks or you may miss the smaller or deeper metals.
IMPORTANT! When air testing, be sure that Ground Tracking is off. Otherwise, the device
will try to ground balance over the target and lose depth.
FORS / Page 19
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NOKTA DETECTORS
GROUND BALANCE