Furuno FCV-620 - Manual (Page 30)

2. SYSTEM MENU
21
Japanese. To change language, select lan-
guage desired and press the
ENTER key.
2.5 Units Menu
Units menu
Depth: Choose unit of depth measurement
from m, ft, fa, pb or HR (Japanese).
Temp: Choose unit of temperature measure-
ment from
°C or °F. Temperature data is
required.
Fish Size: Choose unit of fish size measure-
ment from inch or cm.
Speed: Choose unit of speed measurement
from kt, km/h or mph. Speed data is required.
Wind: Choose unit of wind speed measure-
ment from kt, km/h, mph or m/s. Wind speed
data is required.
Distance: Choose unit of distance measure-
ment from nm, km or sm.
2.6 Calib Menu
Calib menu
Draft: The default depth display shows the
distance from the transducer. If you would
rather show the distance from the sea sur-
face, set your ship’s draft (setting range: -15.0
to +50.0 ft).
Gain ADJ 200, Gain ADJ 50: If the gain is too
high or too low, or the gain for the low and
high frequencies appears unbalanced, you
can compensate it (setting range: -20 to +20).
Temp: If the water temperature indication has
error, you can correct it here. For example, if
the water temperature indication is 2
° higher
than actual water temperature, enter -2. The
setting range is -20.0 to +20.0
°F.
Speed (STW): If the speed indication has
error, you can correct it here. For example, if
the speed indication is 10
% lower than actual
speed, enter +10. The setting range is -50 to
+50 %.
Fish Size: Compensate for wrongful indica-
tion of fish size (setting range: -80 to +100 %).
Water Type: Choose the water type with
which to use the FCV-620/585, from Salt or
Fresh. Choose correct water type to get accu-
rate depth data.
Zero Line Rejection: Turn the zero line
(transmission line) on or off. When turned on,
the transmission line disappears, which
allows you to better watch fish echoes near
the surface. The length of the transmission
line changes with transducer used and instal-
lation characteristics. If the width of the trans-
mission line is 4.5 ft (default value) or more,
set the transmission line width with Zero Line
Area, as below.
Zero Line Area: This feature adjusts the
transmission line so that the transmission line
disappears when the menu item Zero Line
Rejection is turned on. The effective range is
4.5 to 9.8 ft. For a long tail, increase the value.
If the transmission line does not disappear,
lower the Tx power.
Units
S / T / W / X : Select
[ENTER] : Enter
[MENU] : Back
Depth : ft
Temp :
°
F
Fish Size : inch
Speed : kt
Wind : kt
Distance : nm
Calibration
S / T / W / X : Select
[ENTER] : Enter
[MENU] : Back
Draft : + 0.0 ft
Gain ADJ 200 : + 0
Gain ADJ 50 : + 0
Temp : + 0.0
°
F
Speed (STW) : + 0%
Fish Size : + 0%
Water Type : Salt
Zero Line
Rejection : On
Area : 4.5ft
Compensation size Setting value
Double +100 %
1.5 +50 %
1/2 -50 %
1/3 -65 %
1/4 -75 %
1/5 -80 %