Furuno FAR-21 7-BB Series, Руководство оператора

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1. RADAR OPERATION
1-75
Nav data menu description
Item Description
2 DEPTH Chooses unit of depth measurement, or turn
depth indication off.
3 DEPTH GRAPH SCALE Chooses depth scale range. The echogram
shows the last 30 minutes of sounding along
the ship’s track.
4 DEPTH MARK Chooses the depth at which to show the depth
mark.
5 CURRENT Turns ocean current display on (ocean current
relative to North) or off.
6 WIND Chooses unit of wind speed measurement, or
turn wind indication off.
7 TEMP Turns water temperature indication on/off.
8 DATE-TIME Chooses how to display date and time: OFF,
UTC or LOCAL.
9 LOCAL TIME ADJ If LOCAL is selected at 8 DATE-TIME, roll the
wheel to set the time difference between local
time and UTC time. A negative value may be
chosen by spinning the wheel past zero.
0 WPT DATA Turn waypoint data off, or display range and
bearing to waypoint.
4. Push the right button twice to close the menu.
Note:
Wind and current data require appropriate sensors. Depth data requires
appropriate echo-sounding equipment. Wind vector shows a direction from
which the wind blows in, relative to own ship heading, and labeled “T *.”
Wind velocity is a true wind speed as a result of compensating for own
ship’s speed and orientation. Ocean current (tide) is the direction to which
the current is flowing away own ship position, relative to north.
30 20 10 min
100 m
80
60
40
20
0
Present depth
Last 30 minutes
of depth
N
E
W
S
OS heading
Wind direction relative to
OS heading, full scale
100 kt. TRUE WIND is a
calculated value from the
relative value and OS
heading.
Echogram Wind, tide graph
Tide relative to north,
full scale 10 kt
Examples of depth echogram and wind, tide graph