Furuno GP-3500F-D Operator's Manual page 56

3. TRACKS
4. Rotate the [ENTER] knob to select TRACKS BY TEMP.
5. Roll the trackball leftward to select "RANGE."
6. Set the temperature range desired for each color. For example, if you want to
paint the track red when the water temperature is higher than 18°C, do the
following:
a) Rotate the [ENTER] knob to select "RED: xxx.x°C ABOVE."
b) Press the [0], [1], [8], [0] in that order, and then press the [ENTER] knob.
Note: To erase, press the [CLEAR] key.
c) Set ranges for other colors similarly. You cannot enter the range for WHITE. It
becomes the same range as BLUE automatically.
7. Press the [MENU] key several times to close the menu.
Changing own ship's track color according to temperature variation
This setting paints the track in up to five colors according to temperature
variation. When you select "0.2ºF", for example, the track is painted red when
the water temperature is between 17.0 and 17.2 degrees; yellow when the water
temperature is between 17.2 and 17.3 degrees. Thus, the track color changes
green, blue and purple in 0.2 degree steps. When the water temperature
becomes 18.0 degrees, the track color returns to red.
1. Press the [MENU] key to show the main menu.
2. Press the [4] key to show the MARKS/SHIP'S TRACKS SETUP menu.
3. If PAGE 2/2 appears, rotate the [ENTER] knob to select PREVIOUS PAGE.
4. Rotate the [ENTER] knob to select TRACKS BY TEMP.
5. Roll the trackball rightward to select 0.2ºF or 2.0ºF of "GRDNT."
6. Press the [ENTER] knob.
7. Press the [MENU] key several times to close the menu.
3-10
YEL
RED
18.0
PPL
BLU
17.8
GRN
17.6
YEL
17.4
RED
17.2
17.0 C
Example, presetting unit 0.2°
Own Ship
18.2