Furuno FR-8122, FR-8252, FR-8062 Target Alarm, Setting a target alarm, Silencing the audio alarm

1. OPERATIONAL OVERVIEW

1.20Target Alarm

The target alarm serves to alert the navigator to targets (ships, landmasses, etc.) entering a set area, with audio and visual alarms.

The alarm may be set to sound against targets entering or exiting the zone. See paragraph 1.20.3.

1.20.1Setting a target alarm

The procedure which follows shows you how to set a target alarm, using the illustration below as an example.

CAUTION

•The alarm should not be relied upon as the sole means for detecting possible collision situations.

•A/C SEA, A/C RAIN and GAIN controls should be properly adjusted to be sure the alarm system does not overlook target echoes.

1.Press the TARGET ALARM key to activate ALARM 1 or ALARM 2 as appropriate.

2.Use the trackball to drag the cursor to the location “A” and press the ENTER key.

3.Drag the cursor to the location “B” and press the ENTER key.

3	NM
	0.5

A +B

+

Target alarm zone 1 (Length of dash and interval longer on alarm zone 2)

Cursor

					ALARM1_IN	Alarm status
			+ 110.1°R	2.525 NM
		How to set a target alarm zone
	•If you wish to create a target alarm zone having a 360-degree coverage around own
Note
	ship, set point "B" in almost the same direction as point "A."

•When the target alarm zone is not within the range in use, the indication OUTRNG replaces ALARM1(or 2)_IN(or OUT) in the alarm status area. In this case choose a range which will display the target alarm zone.

1.20.2Silencing the audio alarm

A target in the target alarm zone produces both visual (flashing) and audio (beep) alarms. To silence the audio alarm, press any key. This will deactivate the audio alarm but will not stop the flashing of the offending target.

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