Automatic Ground Balance; Manual Ground Balance - Garrett CSI PRO Instruction Manual

the ground's signal, the result is deeper target detection, more
accurate Target ID, and more stable operation.
Note: Always locate an area of soil free of metal before
attempting to ground balance the detector.
Automatic Ground Balance—Press and hold the GND BAL
pushbutton while continually "bouncing" or "pumping" the
searchcoil from 1 to 8 inches (2 to 20 cm) above the ground.
When there is a minimal audio response from the ground,
release the pushbutton and begin hunting. The ground balance
value will have been indicated in the center of the LCD. Low
ground balance values indicate conductive soil; high ground
balance values indicate ferrous soil.
Note: If the CSI Pro's Ground Balance setting does not change
during the auto ground balancing process, the detector is either
sufficiently ground balanced already or the current ground
exhibits such neutral mineralization that the settings will not
change.
Manual Ground Balance—Press and release the GND BAL
pushbutton and continually bounce (pump) the searchcoil from
1 to 8 inches (2 to 20 cm) above the ground. If low tones are
produced, increase the Ground Balance setting using the (+)
NOTCH DISC pushbutton. If high tones are produced, decrease
the setting using the (-) NOTCH DISC pushbutton. Press and
release the (+) or (-) NOTCH DISC pushbuttons to make single-
step adjustments, or press and hold to make large adjustments.
Continue bouncing the coil and making adjustments until a
minimum audio response is obtained, indicating the detector is
ground balanced. The Ground Balance setting will be indicated
on the LCD. Press and release the GND BAL pushbutton again to
exit manual Ground Balance mode.
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CSI Pro™