B&G Network Depth - Manual (Page 9)

SETTING THE DEPTH DATUM
D CAL zero, depth from transducer CAL TRA.
D CAL positive, depth from waterline CAL W/L.
D CAL negative, depth from keel CAL KEEL.
NOTE: If the CAL LOCK is set then the D CAL value cannot
be changed.
Press DEPTH key
to display depth
datum D CAL M. Press SETUP key
to display current
datum value. Press ENTER to
adjust the datum
value. Use S or T to
adjust the value.
Press ENTER to
memorise the new
value. Press DEPTH to
display the depth
datum.
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