Delta 4000 Metal Detector - Manual (Page 12)

OPERATION and CONTROLS
cont.
MENU SELECTIONS
continued
2. DISC. LEVEL
Use and to increase or decrease DISCRIMINATION level.
Each time you press , a target category is eliminated from detection.
Elimination occurs from left to right. When a category description (for example
“IRON”) disappears from the display, then targets classified in that category
will not be detected.
Pressing
reverses the discrimination process. With each press of
, a category description will reappear, indicating that targets
classified in that category will again be detected.
Discrimination is a cumulative elimination system. Targets can be eliminated
from left to right on the scale, with each additional press of
, resulting in
more objects being eliminated from detection.
3. NOTCH
Use and to notch target categories IN or OUT while the NOTCH
line is highlighted.
Whereas the discrimination feature eliminates all categories sequentially from
detection, the NOTCH control allows you to selectively include or exclude
target categories from detection.
With each press of or , the notched category moves across the
display screen. As you move the position of the notched category, you are
changing the detection status of the selected category.
• If a target category was previously eliminated (word not visible) then
notching that category will return it to detection.
• If a target category was previously retained (word is visible) then
notching that category will remove it from detection.
Only one target category at a time can be selected for notching. To notch multiple
categories in or out, wait for the icon to stop flashing and then press
or
again to select the next notch.
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Each time you press to select notch, followed by , the notch
program will begin by changing the status of the IRON segment