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1. To determine the value to enter into the Keel Offset setting, first decide whether
depth from the waterline or depth from the keel is desired. Measurements will
need to be made for the location desired.
2a. For depth from the keel of the boat, accurately measure the vertical distance
between the face of the transducer and the keel of the boat. You will then need
to enter this measurement into the Keel Offset function as a negative (-) number.
Or…
2b. For depth measurements from the waterline, accurately measure the vertical
distance between the face of the transducer and the waterline of the boat. You
will then need to enter this measurement into the Keel Offset function as a
positive (+) number.
3. To enable Keel Offset, press the SET key until the KO icon is displayed on the
screen.
4. The available settings are +10 to -10 units. The default setting of the unit is Off,
which is displayed as zero (0.0). From the default setting of 0.0, use the DOWN
Arrow key to enter a negative (-) number (for depth measurements from the keel
of the boat); use the UP Arrow key to enter a positive (+) number (for depth
measurements from the waterline).
5. After your selection is made, wait 5 seconds for the unit to return to normal
operation. The KO icon should now be visible.
