CORRECT CRAFT Sport Nautique Owner's Manual page 26

The deviation can be changed by pressing the mode button once while in the
"Competition mode". The text line will display deviation X, where X is the
current deviation value. Pressing the arrow buttons will cause the deviation to
change in one mile per hour increments. The speedometer will go back to
"Competition mode" five seconds after the last button is pressed or it will go
to the "Normal mode" if the mode button is pressed before the five seconds
expire.
"Calibration mode" can be entered only from "Normal mode" by pressing both
arrow buttons simultaneously. The text line will display "Calibration X.X"
where X.X is the current calibration value. This value will change the current
speed displayed by the amount entered. The speedometer will go to "Normal
mode" five seconds after the last button is pressed or when the mode button is
pressed.
The pitot symbol indicates which pitot tube is used to display current speed
and to indicate whether or not a pitot tube is clogged. Below is a list of the
symbols and their meaning:
Port pitot tube used for display; Starboard pitot tube is functional:
Port pitot tube used for display; Starboard pitot tube clogged:
Starboard pitot tube used for display; Port pitot tube is functional:
Starboard pitot tube used for display; Port pitot tube clogged:
The set point, deviation and calibration values are stored in non-volatile
memory. When the speedometer is powered on, it will recall the last valid
values set.
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