Anchor Watch - Furuno FMD-3100 Operator's Manual

12. NAVIGATION TOOLS
12.6

Anchor Watch

The anchor watch feature checks to see if your ship is drifting when it should be at rest.
The anchor mark appears at the location of your ship's anchor. You can adjust the lo-
cation for the anchor (see section 22.13).
To set the anchor watch:
1. Select the [Anchor Watch] page.
2. Set the alarm radius (in nautical miles) with [Drag Circle].
3. Drop the anchor then click the [Drop Anchor] button.
The anchor mark and alarm radius circle appear. You can adjust the location of
the anchor mark and the alarm radius by drag and dropping them.
Note: A latitude and longitude position can be set as the anchor watch position.
Put a check mark in the box below the [Drop Anchor] button to show the latitude
and longitude input boxes. Enter latitude and longitude then click the [Drop An-
chor] button.
4. Click the [Start Anchor Watch] button to start the anchor watch.
If your vessel travels more than the distance set here, the corresponding caution is
generated.
If your ship drifts more than the anchor watch setting, the Alert 495 (ALF format:
10802) "Anchor Watch Setting" appears. The alert is escalated from warning level to
alarm level if the alert is not acknowledged within two minutes. Also, if your vessel re-
turns to within the tolerable radius, the alert is status is automatically changed to rec-
tified.
To continue to use the anchor watch, click the [Clear Anchor] button to set the alarm
about your current position. To stop the anchor watch, click the [Stop Anchor Watch]
button. The caution is not generated even if your ship drifts more than the distance set
with [Drag Circle]. Also, if the anchor watch alert is active and the [Stop Anchor Watch]
button is clicked, the alert is also acknowledged and rectified.
12-8
Alarm radius Alarm radius
Own ship mark Own ship mark
Anchor mark Anchor mark