40 Ground Balance Procedure for Tracking
For Ground Balance type General.
1 Find a clear area of ground without any targets.
2 Change the Ground Balance switch to Fixed.
3 Whilst keeping the coil parallel to the ground, practise
raising and lowering the coil between 25mm and 100mm (1”
and 4”) over the ground. Try to lower the coil as close to the
ground as possible without touching it.
4 While moving the coil change the Ground Balance switch to
Tracking and continue moving the coil up and down until
the audio has stabilised and any ground noise has stopped.
Note: A persistent signal may indicate a target in the ground.
If this occurs, move the coil to a new location and repeat
the procedure.
5 When there is no longer a change in the Threshold,
the detector is ‘Ground Balanced’, and you can
commence detecting.
Note: When changing the Ground Balance switch from Fixed
to Tracking a very fast auto-Ground Balance is initiated prior
to returning to a normal Tracking speed. This fast Ground
Balance only lasts a short time, so it is important to be
moving the coil before changing the switch.
100mm (4”)
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