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Depth:
Sets
the
depth units to feet
(ft),
meters (m), or
fathoms
(ftm).
Distance: Sets the distance units.
Temperature:
Sets the temperature units to
Fahrenheit
(°F) or Celsius (
0
C).
NOTE:
You must have a temperature-reading transducer connected to
display the
temperature.
Water
Speed:
Sets the water speed
units.
NOTE:
You must have a water-speed
transducer
connected to display the
water speed.
Restoring the Factory Default Settings
NOTE: This deletes all settings information you have entered.
1
Select
MENU
>
Setup
>
System
>
System Information
>
Factory
Settings.
2
Select an
option.
Calibration
Setting the Keel Offset
You can enter a keel offset to compensate
for
the surface reading for the depth of
a
keel,
making it possible to measure depth from the bottom of
the
keel instead of
from
the transducer
location.
1
Select an
option,
based on the location of the transducer:
10
•
If
the
transducer is installed at the water
line
CD,
measure the distance
from the transducer
to
the keel of
the
boat. Enter this value in step 3 as a
positive
number.
•
If the
transducer
is installed at the bottom of the keel
@,
measure the
distance from the transducer
to
the water line. Enter this value in step 3
as a
negative
number.
2
Select
MENU
>
Setup
>
Calibration
>
Keel
Offset.
3
Use the arrow keys to enter the keel offset measured in step
1.
Setting the Water Temperature Offset
You can set
the
temperature offset
to
compensate for the temperature reading
from a temperature-capable sensor.
1
Measure
the water temperature using the temperature-capable transducer
that is connected to
the
device.
2
Measure the
water
temperature using a
different
thermometer or temperature
sensor that is known to be accurate.
3
Subtract the water temperature measured in step 1 from the water
temperature measured in step 2.
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