Pinpoint Feature
The Pinpoint feature is used to adjust the gain of the EML100 to more closely
locate a marker.
Gain Adjust:
1. To eliminate noise or pinpoint markers reduce gain (press LO gain button).
2. Display indicates gain setting relative to 100%.
3. Continue pressing LO gain to reduce gain.
4. Press HI gain button to restore gain to 100%.
Note: Press LO gain button away from marker peak signal for best pinpoint
result.
Note: The Pinpoint feature will work
in the normal operation or SCAN
modes.
To activate the Pinpoint feature:
1. Select a marker MODE as
described in Unit Set Up
above.
2. When a marker has been
detected the display will show
a reading similar to the
“Normal Displays” shown in
Figure 26.
3. Without moving the EML 100,
press the DOWN arrow key to enter the Pinpoint feature. Press the UP
arrow key to return to the normal display.
a. The Bar Graph on the display will disappear temporarily and a per-
centage number will appear in the upper right corner. This percent-
age indicates the amount of gain remaining.
4. Continue searching the area and the Bar Graph will reappear as the
EML 100 is moved closer to the marker.
5. The Pinpoint feature may be used as needed until the exact location of
the marker is known.
Note: Activating the Pinpoint feature adjusts the gain horizontally and vertically.
If a marker is buried too deep, or has marginal signal strength, a reading may
not be possible using the Pinpoint feature even if the EML100 is directly over
the marker. Reset the gain by pressing the UP arrow key if no markers are
being detected.
Figure 27 shows samples of the displays that may be shown in various modes.
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Fig. 26 - Pinpoint Featur e
