Raymarine L470 - Manual (Page 73)

67
Setup Instructions
unit says that you are moving faster than you really are, you
can adjust the Speed Cal figure to a smaller number. If the
unit says that you are moving slower than your actual
speed, use a larger number for Speed Cal. The setting can
range between 75 and 125. Use the
< and > controls to
change the value. For more information, see the section on
“Calibrating the Sensors.”
Temp Cal This unit can display the water temperature. You may want
to fine-tune the signal from the transducer to get an
accurate display. The displayed number indicates an offset
added to the measured temperature. (This offset will be
measured in °F or °C, depending on the setting used for
Temp Units.) For example, if the temperature reading on
the FishFinder Page tends to read 2°F too high, you can
correct for this by setting Temp Cal to -2.0°. The setting
can range between -9.9° and +9.9°. Use the
< and >
controls to change the value.
Depth Digits This item sets the size of the digits used to show the bottom
depth on all of the display pages except for the Window and
Digital Pages. The “STD.” (standard) setting will display
digits which are 7 mm tall, and the “LARGE” setting will
display digits which are 15 mm tall. Use the
< and >
controls to change the setting.
Shallow Alarm
You can set an alarm to trigger whenever the boat moves
into water which is shallower than a limit you set. Use the
<
and V controls to move to the line for Shallow Alarm
and use the > control on the Page Control Pad to turn this
item on. Once you do this, the display will ask which depth
you want to use as a limit. Use the
< and > controls to set
the limit you want. When the shallow alarm is set, the letter
“S” will appear in the upper left-hand corner of the normal
displays. If you move into shallow water and trigger the
alarm, the letter “S” will begin to flash, and the buzzer will
sound. Press the
CLEAR button to silence the buzzer. The
letter “S” will continue to flash until you move into
deeper water.