Basic Calibration Of The Vdo Depth Sounder; Selection Of The Unit; Setting The Keel Depth - VDO DEPTH SOUNDER Manual

BASIC CALIBRATION

Basic calibration of the VDO Depth Sounder

Selection of the unit

Setting the keel depth

Keep the pushbutton pressed and switch the indicating instrument po-
wer supply on. Wait until the display shows „UNIT".
Release the pushbutton. The current unit setting (feet in the example) is
displayed.
Push the button to toggle between the units feet and meter.
About 5 seconds after unit selection the instrument prompts for the keel
depth entry. The display shows „OFFSET" and, shortly thereafter, the
current keel depth setting (0.0 in the example).
OFFSET = keel depth
Push the button until the measured keel depth (1.2 m in the example) is
set.
The value increments by 0.1 m or 1 foot at each press of the button.
Incrementing is automatic if you keep the pushbutton pressed.
The setting range is 0.0 to 3.0 m or 0 to 9 feet.
The set value is stored if the pushbutton is not pressed for 5 seconds.
After a double acknowledgement tone the depth is displayed automati-
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