How To Select The Target Strength Which Triggers A Target Alarm; How To Acknowledge The Target Alarm; How To Sleep A Target Alarm Temporarily; How To Delete A Target Alarm - Furuno FR-1908V-BB Operator's Manual

1. OPERATION
1.26.3

How to select the target strength which triggers a target alarm

You can select the target strength which triggers the target alarm as follows.
1. Open [MAIN MENU], click [ALARM].
2. Click [TARGET ALARM].
3. Click [LEVEL].
4. Click the alarm echo strength level, [1] to [4]. [4] is the strongest.
5. Click outside the menu window to close the menu.
1.26.4

How to acknowledge the target alarm

A target in the target alarm zone produces both visual (flashing) and audible (beep)
alarms. To silence the audio alarm, press the left button or click the appropriate
[ALARM ACK] icon. This deactivates the audio alarm but does not stop flashing of the
offending target.
1.26.5

How to sleep a target alarm temporarily

You can sleep a target alarm zone when its use is not immediately needed. The alarm
zone remains on the screen, but any targets that enter (or exit) the alarm zone do not
trigger the audio and visual alarms.
1. Click the [ALR1] or [ALR2] icon until the icon reads "ALR1 ACK" or "ALR2 ACK".
2. To activate a sleeping target alarm zone, press the [ALR1] or [ALR2] icon until the
alarm indication changes to "ALM1 (or 2)_IN(or OUT)".
1.26.6

How to delete a target alarm

1. Click the appropriate [ALR] icon.
2. Press and hold down the left button until the [ALR] icon goes blank. The target
alarm is deleted from the screen.
Note: If both acquisition zones are active [ALR1] can not be deleted unless [ALR2] is
deleted.
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