Ukc (Under Keel Clearance); Ukc Overview; How To Set Ukc - Furuno FMD-3200 Operator's Manual

12. NAVIGATION TOOLS
12.7

UKC (Under Keel Clearance)

12.7.1

UKC overview

The UKC is the distance between the deepest point of the vessel's hull and the sea-
bed. The UKC feature continuously checks ship's draught setting (UKC), and actual
depth. When the depth gets shallower than the UKC, the Alert 634 "UKC Limit" is gen-
erated. And if the current depth is less than the echo alarm setting the echo alarm also
is generated. Depth data is required to use the UKC function.
Sea surface
Draught
Under keel clearance (UKC)
Seabed
Note: The sensor value shown is the depth to the transducer. Convert the value to the
distance to the keel.
12.7.2

How to set UKC

1. Select the [UKC] page from the [Overlay/NAV
Tools] box.
2. Use [Echo Alarm Limit] to set the distance for
the echo alarm. To activate the alarm, click the
[ON/OFF] button to show [ON].
3. At [UKC Limit], set ship's UKC limit. To activate
the UKC feature, click the [ON/OFF] button to
show [ON].
4. Use [Current Draught] to set your ship's draft.
Be sure to change the setting whenever the
draft changes.
5. Use [Type] to set how to show the seabed in the
[UKC] window, [V-shape] or [Concave]. See the figure on the next page.
6. Click the [Apply] button to affect the changes.
12-8
Echo alarm setting
Distance from keel
to seabed