Volvo Penta D4 Operator's Manual page 106

Calibration and Settings
A
C
B
P0001201
A Waterline
B Echo-sounder
C Lowest point
P0001023
P0005853
P0005855
104
5 Turn to Set offset. Press the wheel to access offset
depth adjustment.
Adjust it to correspond to the boat's deepest point
or the boat's waterline, depending on the depth to
be displayed. The echo-sounder can be placed
anywhere between these two points.
6 Turn the wheel to set depth compensation. If the
number is positive (+) the distance between the
echo-sounder and the water line is set, if the num-
ber is negative (–) it is the distance between the
echo-sounder and the lowest point.
Press the wheel to confirm the setting.
Depth alarm popup window
When the depth is less than the alarm level, the popup
window will display intermittently, followed by the alarm
signal.
The pop-up window will be displayed every 30 seconds
until the depth is greater than the alarm level.
Confirm the selection by depressing the navigation
wheel.
Lost depth alarm signal
If the signal from the depth alarm disappears, e.g. if the
depth alarm sensor is defective, the popup window is
displayed to the left.
7748934 04-2008