Fisher M-SCOPE CZ-3D - Manual (Page 9)

7
When your CZ-3D is properly “ground balanced,” it will have only
a minimum response to ground mineralization. Precise adjustment
of the ground control is critical. The higher the degree of ground
mineralization or sensitivity setting, the more critical it is. Once you
adjust it in either the Autotune mode or Target ID mode, you can
switch back and forth between the two modes without resetting
it, unless you increase the sensitivity level or go from dry sand
to wet sand or vice versa. You should also recheck your setting
occasionally as you search since ground conditions often change
rapidly.
If you have difficulty ground balancing, try reducing your sensitivity
level or moving to another spot just in case you are over a buried
piece of metal. In some areas of high ground mineralization you may
not be able to use the “pushbutton” method.
1. Set your controls as follows:
GROUND = 10
DISC = 0 for normal use in target ID mode. (Set DISC
to “Auto tune” for deep search, all-metal Auto tune
mode.
SENSITIVITY = 10
MODE =ENHANCE
VOLUME = OFF
2. Hold the search coil waist high, away from any nearby
metal.
3. Turn the VOLUME control to 10. A brief bell tone is
normal when you turn the VOLUME control on.
If you’re in the Auto tune Mode, you’ll hear an audio
“threshold” hum. Lower the SENSITIVITY control until
you can just barely hear it.
4. If you’re wearing headphones, reduce the headphone
volume controls to a comfortable level when the search
coil is passed over a large, shallow target.
GROUND BALANCING
TURN ON PROCEDURE