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so that the Accura 240 will add one
foot to the depth, since the transducer
is one foot below the surface. Press
the right arrow key, then the up or
down arrow keys until 1.0 appears in
the "Adj Keel" box, as shown at right,
then press the ENT key. This immedi-
ately changes the digital depth display
at the top of the screen by one foot.
Press the EXIT key to erase this menu.
Note: Another way to use the keel
offset feature is if you want to know the
depth of the water below the lowest
part of the boat, instead of the surface.
To do this, measure the lowest part of
the boat below the transducer. In this
example, we'll use 3 feet. Now, using
the keel offset feature, adjust the off-
set for a
negative
3 feet, as shown at
right.
Please note that adjusting the keel
offset only affects the digital depth
display and all features that use the
digital depth, such as the depth alarms
and FishTrack. This doesn't affect the
chart at all.
Calibrate Speed
You can calibrate the speed display.
To do this, highlight the "Calibrate
Speed" label on the "System Setup"
menu, then press the right arrow key.
A screen similar to the one at right
appears.
If the digital speed display is slower
than your actual speed, add a positive
percentage to make it read faster. If
the digital speed display is faster, use a negative percentage to make it
read slower. Use the arrow keys to change the speed, then press the ENT
key. Press the EXIT key to erase this menu.