Optional Procedure - Minelab F3 Mine Detector Operation Manual

Piece should be moved slowly and smoothly during this procedure).
A clear response (change in Threshold Tone volume and pitch)
should be heard indicating the sensitivity of the detector is correct.
The Test Piece not only ensures the sensitivity of the detector is
correct but also gives the operator an example of how a minimum
metal mine might sound when deeply buried: for example Type 72A
at 15cm . (Black Endcap only).
 Yellow Sensitivity Endcap:
When the F3 detector is programmed with Sensitivity, Audio Volume
or Ground Balance settings that differ from the default black endcap
settings the Minelab test piece cannot be used to confirm the
performance of the detector. When using the yellow endcap with
user customised configuration it is the responsibility of the user to
provide a test piece or appropriate target to confirm the detector
satisfies operational requirements.

6.3 Optional Procedure.

If after Step ONE the Threshold Tone is not low and steady, conduct
one or both of the following:
a. Noise Cancel. If the Threshold Tone is noisy or uneven when
the coil is stationary, conduct Noise Cancel as follows:
The detector cannot be used for clearing operations during Noise
Cancel. The coil should not be moved during this procedure nor
should metallic objects be brought near the coil during this
procedure.
 Holding the coil stationary and at least 600mm (24ins) above the
ground press and immediately release the Noise Cancel button
(Black Button located behind the handle).
NOTE
NOTE
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