Sweeping Procedure - Minelab F3 COMPACT Operation Manual

F3 COMPACT Operations Manual
Noise Cancel and Audio Reset procedures can be performed any
time the Threshold Tone becomes noisy, uneven or rises in volume.
Once Noise Cancel and/or Audio Reset are complete, continue
with Standard Procedure steps 2 and 3. Figure 19 illustrates this
sequence. Once completed, the F3 COMPACT can commence
operations in compliance with local Standard Operating Procedures.
Having completed STEPS 1, 2 and 3 the F3 COMPACT remembers
the Ground Balance setting even after the detector has been
switched off.
After Noise Cancel is completed the F3 COMPACT remembers the
frequency selected to minimise interference, even if the detector is
switched off.
4.4

Sweeping Procedure

The F3 COMPACT should be swept with a smooth even motion at a
speed of 0.6 m/s (2 ft/s). If the detector is swept too fast or too slow,
small or deep targets may be missed. The coil should always be kept
at the same height above the ground with care taken to ensure that
the coil is not inadvertently raised at the end of each sweep (see
Figure 20).
Direction of
Movement
Mine Lane
Figure 20: Sweeping procedure
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