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the search coil while sweeping or at the end of a sweep causes
false readings.
Sweep slowly – hurrying makes you miss targets.
It’s better you sweep the search coil from side to side in an arc
line of 10-15cm motion and keep the search coil parallel with
the ground. If the metal object is estimated to be small, get the
coil closer to the ground to get better detecting result.
If the detector detects the material, it sounds a tone and the pointer
moves to the type of metal it found.
If the detector does not detect the material, make sure you are
moving the search coil correctly.
Notes:
The detector responds with a strong signal when it detects
most valuable metal objects. If a signal does not repeat after
you sweep the search coil cover the target a few times, the
target is probably junk metal.
False signals can be caused by trashy ground, electrical
interference, or large irregular pieces of junk metal. False
signals are usually broken or non-repeatable.