Minelab F3Ci Service Manual page 8

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This action will cause the F3Ci to delete the previously stored ground balance condition. Unless
this is done the detector will remember its last ground balance condition regardless of the unit
Move the ground balance test piece from approximately 15cm (6in) above the coil
•
towards the centre of the coil and confirm that a detection tone occurs. This
confirms that the detector is detecting the mineralised content of the ground
balance test piece.
Press down and release the ground balance button whilst moving the ground balance
•
test piece from approximately 15cm (6in) above the coil towards the centre of the
coil (and touching the coil). Then, move the ground balance test piece away from the
centre of the coil to a distance of 15cm (6in).
Repeat this process until the 'Ground Balance OK' tone consisting of a short high-
•
pitched double beep occurs. This tone confirms the ground balance procedure has
been completed correctly.
Confirm the ground balance is correct by moving the ground balance test piece from
•
approximately 15cm (6in) above the coil towards the centre of the coil. If there is no
detection tone from the ground balance test piece the ground balance procedure is
functional.
Where the ground balance test is conducted using local soil Figure 5 illustrates the procedure to
Note
being switched off or the batteries removed.
Note
be followed.
Figure 5: Ground Balance
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F3Ci Service Manual