above the surface. Sweep the search coil from side to side in an arc
line of 2.75 inches (7 cm) motion.
When the metal detector detects a buried target, it sounds a tone.
Make a visual note of exact spot on the ground where the detector
beeps. Then stop the search coil directly over this point on the
ground. Move the search coil straight forward away from you and
straight back towards you a couple of times.
Slowly rotate the DISC control knob clockwise away from ALL
METAL until the unit does not sound or sounds short tones. You can
identify what kind of metal is detected according to the setting
position of DISC.
Reference for DISC setting.
DISC setting
Metal rejected
Near 11:00
Iron
Near 12:00
Nickel coin (5 cents), pull tab
Near 13:00
Zinc coin (1 cent 87 version)
Near 15:00
Copper coin (1 cent 76 version)
When the DISC control knob is set all the way clockwise, most of
metal targets are rejected, except silver (25 cents, 50 cents and 1
dollar).
Search coil sweeping hints:
•
Never sweep the search coil as if it were a pendulum. Raising the
search coil while sweeping or at the end of a sweep will cause
false readings.
