9
Search coil Sweeping Hints:
•
Never sweep the search coil as if were a pendulum. Raising the search coil while
sweeping or at the end of a sweep will cause false readings.
CORRECT
WRONG
•
Sweep slowly, hurrying will cause you to miss targets.
•
It is better you sweep the search coil from side to side on an arc line of 3 inches
motion and keep the search coil parallel with the ground.
Factors That Affect the Detecting
It is difficult to have an accurate detecting result. Sometimes the detecting may be
restricted by some factors.
•
The angle of the target buried in the soil.
•
The depth of the target.
•
The level of oxidization of the target.
•
The size of the target.
•
Electro-magnetic and electrical interference surrounding the target.
In area of highly mineralized ground or wet sand, the detector will sound even uf there
is no metal. In this case, you can lower the sensitivity or increase the DISC number.
Meantime enhance the distance between the search coil and the ground.
In area with trashy metal, you can set DISC numeric value to 50. In this case most nails
and small pieces of iron will be eliminated.
Metallic digging tolls will also affect the detection of they are near the search coil. So it is
better place them a little far away.
