Furuno FCV-668 Operator's Manual page 22

2.11.4 System menu description
Menu item
System Menu 1
DEPTH
SPEED
TEMP
ZOOM MARK
F/A LEVEL
NAV
System Menu 2
NAV DSP
FORMAT
SPD SEL
TMP SEL
TMP GRP
SPD ADJ
TMP ADJ
System Menu 3
RANGE 1-8
ZOOM RANGE
B/L RANGE
2-12
Selects unit of depth measurement; meters, feet, fathoms, passi/braza.
Selects unit of speed measurement; knots, miles per hour, kilometers per hour.
Selects unit of temperature measurement; Celsius and Fahrenheit.
Turns zoom range and expansion range markers on/off.
Sets fish alarm level.
WEAK: Alarm against weak to strong echoes.
MED: Alarm against medium to strong echoes.
STRG: Alarm against strong echoes only.
Selects digital or analog display of navigation data.
Selects digital data to display at top-left corner on the screen. L/L, latitude and
longitude position; R/B, Range and bearing to waypoint, CSE, Ship's course.
Selects format of data fed from nav sensor. CIF (FURUNO developed) is
standard data format of FURUNO equipment.
Selects source of speed data. OWN, speed data fed by optional speed sensor;
NMEA, speed data fed by position-fixing equipment.
Selects source of water temperature data. OWN, speed data fed by optional
water temperature sensor; NMEA, speed data fed by position-fixing equipment.
Turns temperature graph on/off. Requires water temperature sensor.
OFF: No water temperature graph.
LOW: Temperature graph scale 30°F to 70°F (0°C to 20°C)
HIGH: Temperature graph scale 50°F to 90°F (10°C to 30°C)
Offsets speed measured by optional speed sensor. When the speed indication
appears to be wrong, apply an offset here. Speed data fed from position-fixing
equipment cannot be compensated.
Offsets water temperature measured by optional speed sensor. When the water
temperature indication appears to be wrong, apply an offset here. Water
temperature data fed from position-fixing equipment cannot be compensated.
Sets basic ranges. Change when default ranges are not satisfactory.
Selects range scale for bottom zoom and marker zoom displays. X2, for
example, expands echoes to double size relative to those on the normal
display.
Selects range for bottom-lock expansion display.
Description