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NAVMAN FISH 4100 Installation and Operation Manual
16
KEEL OFFSET
Keel offset is the distance between the location of
the depth transducer and the point the displayed
depth is measured from.
Enter a keel offset value when the transducer is
located below the water surface but a display of total
water depth is required, or when the depth of water
below the boat's keel is required.
Press or to select KEEL OFFSET, then press
to display the keel offset box.
Negative values display the depth as measured from
a point below the transducer (e.g. keel). Positive
values display the depth as measured from a point
above the transducer (e.g. water surface).
Press or to increase or decrease the value.
Use this menu at installation time, to select the
language and to enter the keel offset value for the
boat.
Select MAIN MENU - SETUP - INSTALL to display
the menu. The FISH 4100 install menu is shown. An
extra option, CALIBRATION, is available on the FISH
4150 to calibrate water temperature and boat speed.
The FISH 4100 Install Menu is shown:
Press or to select an
option:
LANGUAGE
The following languages
are available: English,
French, Swedish, Italian,
Spanish, Portuguese,
Dutch, German and
Finnish.
Press or to highlight
the selected language,
then press to save
and exit.
Select MAIN MENU - SETUP - LOG to display the
available options.
Press or to select
an option:
LOG
Selects which log is
displayed on the DATA
screen, TOTAL or TRIP.
Press to choose
between TRIP or
TOTAL. Both logs are
retained in the NAVMAN
fishfinder but only the
selected log is
displayed.
ZERO TRIP LOG
Resetting the trip log will return the trip log value to
zero. The trip log is retained in the fishfinder memory
4-6 LOG menu (FISH 4150 only)
so it retains the distance value if the fishfinder is
switched off during a trip. Therefore, the trip log needs
to be reset manually each time the user wishes to log
a trip.
Press or to highlight ZERO TRIP LOG, then press
to select it. The message box “ZERO TRIP LOG
YES” appears.
Press to select YES or NO. Then press or
to reset the trip log and exit.
ZERO ALL LOGS
Resetting both logs will return both the trip log and
the total log values to zero.
Press or to highlight ZERO ALL LOGS, then
press to select it. The message box “ZERO ALL
LOGS YES” appears.
Press to select YES or NO. Then press or
to exit.
4-7 INSTALL menu
Water surface
Depth of transducer
Enter positive values to display depth as measured from a point above the transducer (e.g. Water surface).
Enter negative values to display depth as measured from a point below the transducer (e.g. keel).
Negative value
Transducer
Note: Boat illustrated uses a through hull transducer
Positive value
Use Keel Offset either when the
transducer is located below the
water surface but a display of
total water depth is required, or
when depth of water below the
boat’s keel is required.
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