Volvo Penta D4 Series Operator's Manual page 123

Speed Factor
47702599 12-2011
Speed Factor
The speed factor must be set while the boat is under
way. Compare the displayed boat speed value with
GPS data (or another boat) and adjust the speed factor
until the values agree.
The setting just needs to be done on one display for it
to be shown at all stations and on all displays
1 Go from the settings menu to Speed Factor and
press to reach adjustment.
2 Use
to set the value
Press to confirm the setting.
Joystick
Joystick calibration need only be carried out if boat
movements do not correspond to joystick movements.
When calibrating the joystick the boat must be driven
on open waters in safe conditions. Avoid calibrating in
high winds or currents that can influence the result of
the calibration.
Allow the boat to run for a fairly long distance during
the calibration. Hold the joystick firmly in position.
Calibration can only be carried out at a helm station
that is equipped with both a joystick and a control
panel.
Calibration need only be done in one direction, port or
starboard.
Calibration and Settings
121