Garrett Ace 350 Owner's Manual page 16

PINPOINT Pushbutton

Press and hold the Pinpoint
pushbutton to determine the exact location of a target.
To use the pinpoint function, position the searchcoil to the
side of the target's suspected location at a fixed height above
the ground (e.g. 1"). Press and hold the Pinpoint button and
sweep the searchcoil over the target area while maintaining
the same fixed height above the ground (e.g. 1"). Sweep
the searchcoil side-to-side and front-to-back in a crosshair
pattern to locate the peak signal. Note: it is important to
maintain a constant height during the entire Pinpointing
process to prevent ground mineralization from producing
false signals or masking the target's signal.
The bar graph on the LCD can also aid in locating a peak
signal. When pinpointing, the Upper Scale on the LCD Screen
indicates signal strength. When the greatest number of LCD
segments (increasing left to right on the scale) is shown, the
center of the searchcoil is directly over the target with the
depth of a coin-sized target shown on the depth scale.
With practice, you will be able to pinpoint objects quickly
and accurately.
DISCRIM Pushbutton

(Use in conjunction with the Accept/Reject pushbutton to
modify the discrimination pattern.)
Use the (+) or (-) DISCRIM pushbuttons to move the Target
ID cursor to the left or right. Next, use the Accept/Reject
pushbutton to modify the Lower Scale discrimination pattern.
ACE 350™
15