Furuno 1724C, 1734C manual Grounding alarm C-MAP specification, Grounding alarm window

3. PLOTTER OPERATION

3.11.8 Grounding alarm (C-MAP specification)

The grounding alarm feature continuously scans the electronic chart data in front of the boat to detect charted rocks, shoals, obstructions and land areas that could pose a threat if the vessel were to continue along its current course. The area searched is user-definable and is identified by a red triangle on the screen.

Note: This function only checks objects that appear on the chart and is therefore limited by the accuracy of the original source material from which the electronic charts where produced.

1.Press the ALARM key to open the alarm menu.

2.Choose GROUNDING ALARM from page 2 of the ALARM menu.

3.Press the EDIT soft key to show the grounding alarm window.

GROUNDING ALARM

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{ON 0.500 ft ~ OFF

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Grounding alarm window

4.Select ON.

5.Use the Trackball and the alphanumeric keys to enter depth setting: Operate the Trackball to set depth. Set shallow depth for shallow waters.

6.Press the ENTER soft key or push the ENTER knob to register setting.

7.Choose GROUNDING ALARM RANGE and push the ENTER knob.

GROUNDING ALARM RANGE

0 . 2 5 0 n m

8.Use the Trackball and alphanumeric keys to enter alarm range, that is, how far ahead to look for possible grounding situations.

9.Press the ENTER soft key.

10.Press the ALARM key to finish.

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