Furuno FE-700 - Manual (Page 14)

4
1.6 Display Mode
The Mode Selector choose the display mode
among NAV, DBS (depth below surface),
HISTORY, LOGBOOK, OS DATA, HELP, and
MENU.
1.6.1 NAV mode
The depth from the transducer to the seabed
(bottom clearance) is shown on the screen. Note
“BELOW TRANSDUCER” appears at the bottom
of the screen in this mode.
Default is,
Color: Amber
Range:
Automatic range switching
Window: 15 minutes
Shallow depth alarm: 20 m
NOTE: These parameters can be customized to
your preference and the last setting is used at a
next switch-on. This is true on all other modes.
1.6.2 DBS mode
The Depth Below Surface mode provides a
draft-adjusted depth reading and will be useful in
referencing to the nautical chart. The draft should
be adjusted by the DRAFT key according to the
actual draft value. If you find any difficulty to
check for the draft value, use the NAV mode.
When the DBS mode is selected, the message
“Confirm and set ship’s draft to use DBS mode”
appears. Confirm ship's draft and set it by
referring to section 1.12.
BELOW KEEL (when the draft setting is –10.0 to
–0.1) or BELOW SURFACE (when the draft
setting is 0 to 30.0) appears at the bottom of the
display and the draft value appears at the upper
right-hand corner in the DBS mode.
CAUTION
DBS is not a water clearance below
keel.
Do not use this mode in shallow
waters to avoid grounding.
1.6.3 HISTORY mode
This mode provides a mix of Contour and Strata
displays. The Contour display can be scrolled
over the past 24 h while the right side Strata
display (layers of different colors according to
reverberation strengths) shows the latest
sounding for 5 minutes.
Pressing the [+] or [-] key moves the Contour
display forwards or backwards, respectively.
History of the bottom
MENU
HELP
OS DATA
LOGBOOK
HISTORY
DBS
NAV
HISTORY
If the range scale for both the Contour and Strata
display must be the same. If they are not, the
message “OUT OF RANGE” appears.
The update of the contour data may take max.
one minute. Wait for one minute to display
accurate contour if you change the range scale.