Sweeping Procedure - Minelab F3 compact Operation Manual

F3 COMPACT Version 2 Operations Manual
Noise Cancel and Audio Reset procedures can be performed any
time the F3 COMPACT 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
29