White's DFX - Coarse Ground Balance (G.E.B.)

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11. Coarse G.E.B.
(Manual Ground Balance) allows viewing the cur-
rent automatic Ground Balance setting (Air/Ground
Balance) and/or manual overriding of the automatic
Ground Balance.
COARSE & FINE G.E.B. (Ground Exclusion
Balance, or ground rejection) allows manual over-
ride of the automatic balancing features to select a
specifi c Ground Balance setting. COARSE allows
major adjustments. FINE allows minor adjustments
near the COARSE setting.
Before attempting manual Ground Balance adjust-
ments, turn off AUTOTRAC
®
since it will alter
any manual changes you make. Manual Ground
Balance will begin at the setting selected by the
automatic (Air/Ground Balance) sequence. An
Automatic Air/Ground Balance performed after
manual adjustment will cancel the manual setting.
To maintain a manual setting, the Automatic Air/
Ground sequence must be avoided by squeezing
and releasing the TRIGGER when, and if, the Air
Balance instruction appears. Air Balance instruc-
tions may appear during Basic Adjustment or Pro
Options selections following the manual adjust-
ment.
When manually adjusting the Ground Balance, it
is necessary to make an adjustment in COARSE
and/or FINE, then squeeze and release the TRIG-
GER. The TRIGGER can be held in, and the loop
lowered and lifted over the ground to check for a
change in sound which would indicate imperfect
Ground Balance. To return to the Ground Balance
display for further adjustment, press either of the
ARROW controls. When perfectly Ground Bal-
anced in a search mode, the TRIGGER can be
squeezed and held, and the loop lowered and lifted
Tips -
Use for controlled
reactions to specifi c miner-
als or hot rocks. Settings
from 0 - 255 are available.
(G.E.B./Trac section)
Chapter 5 DFX
™
Pro Options