5
Battery Test
Click the right knob fully counterclockwise (all the way to the left), in order to test
the batteries.
If the batteries are good, the needle will move to the right and enter the green
zone on the indicator label.
If the needle does not enter the green zone, replace the batteries.
Practicing Outside
1.
Turn the detector on
a. Rotate
left knob
clockwise to a high sensitivity setting.
b. Click
right knob
on to exit the “battery test” mode.
c. Maintain
right knob
in counterclockwise position, but do
not click into the “battery test” mode.
2.
Find a clear area in the grass
Sweep the search coil around the grass to find an area where
the detector does not beep. In order to test your detector, you
must first find an area free of metal objects.
3.
Toss these metal objects on the ground
a. A nail or other iron object like a small screwdriver
b. A zinc penny (dated after 1982)
c. A quarter
4.
Keep the objects spaced apart on the ground
5.
Sweep the search coil over each of the objects
a. You must keep the search coil moving.
b. Notice that the sound is loudest when the metal object is
under the center of the search coil.
c. While sweeping back and forth, slowly raise the search coil
several inches off the ground.
Notice that the sound is louder when the search coil is closer
to the objects.
6.
Turn the
right knob
progressively to the right while passing the
search coil over each of the objects
The nail (or small iron object) is eliminated from detection
with the right knob in approximately the 3:00 position.
The zinc penny (pre-1982) is eliminated from detection with
the right knob in approximately the 6:00 position.
