Furuno GP-7000F - Manual (Page 69)

7. ALARMS
7-7
7.8 Grounding Alarm
The grounding alarm sounds when there is an object on chart data which is
within the range and depth set. Further, you can know what kind of object is
causing the alarm when it enters in the range.
1. Open the ALARMS menu.
2. Rotate the [ENTER] knob to choose GROUNDING ALARM and then push
the [ENTER] knob.
3. Rotate the [ENTER] knob to choose “xx (value) ft” and then push the
[ENTER] knob.
4. Enter the depth value desired.
5. Press the SAVE soft key.
6. Press the [CLEAR] key.
7. Rotate the [ENTER] knob to choose GROUNDING ALARM RANGE and then
push the [ENTER] knob.
0.25 nm
0.5 nm
1.0 nm
8. Rotate the [ENTER] knob to choose the range and then push the [ENTER]
knob.
9. Push the [MENU] key in order to close the menu.
A triangle appears next to own ship mark to show the alarm range.
When the grounding alarm warns, you can know what kind of object has entered
the setting range and depth by choosing GROUNDING ALARM REPORT from
the ALARMS menu.
Own ship mark
Alarm range
Course