X515C DF & X510C Manual - Lowrance

low depth limits that are shown on the screen, provided there is at
least 10 feet between the upper and lower limits you select. For example,
a range from 12 feet to 34 feet could be used.
Changing the upper and lower limits gives you far greater control over
the depth range. This feature lets you "zoom in" the display with almost
unlimited combinations. Nearly any segment of the water column,
from the surface to the bottom can be shown. This enlarges the sonar
targets to best suit your fishing needs and water conditions.
Sonar Page Menu with Upper and Lower Limits command selected
(left). Sonar Chart Limits menu with Upper Limit selected (right).
To change the upper and lower limits
1. From the Sonar Page, press MENU|↓ to UPPER AND LOWER LIMITS|ENT.
The Sonar Chart Limits menu appears, with Upper Limit selected.
2. To set the upper limit, press ENT. Press ↑ or ↓ to change the first
number, then press → to move the cursor to the next number and repeat
until the depth is correct, then press EXIT.
3. To set the lower limit, press ↓ to LOWER LIMIT|ENT. Press ↑ or ↓ to
change the first number, then press → to move the cursor to the next
number and repeat until the depth is correct, then press EXIT repeatedly.
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