Raymarine RayChart 630 - Setting Up the Alarms and Timers

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RayChart 620 and 630
Setting Up
the Data
Tide Vector
When the Tide Vector is switched on, your vessel is displayed on the chart with
a solid line extending from it indicating T (tide) angle.
The tide information is calculated from the speed through the water and the
compass data, compared with COG and SOG information from the GPS. It is
therefore only displayed if all this information is available.
Dead Reckoning
If you set Dead Reckoning to ON, the chartplotter will calculate your position
by dead reckoning if position data is lost. The dead reckoned position is
calculated from your speed and heading (if available), and a dead reckoning
indicator is shown at the top left of the display.
Set Dead Reckoning to OFF if you do not wish to use a calculated position.
Cursor Data Box
This option controls whether or not the cursor data box is displayed. If you turn
it off, only the depth units and scale rule are displayed at the top left of the
screen.
Setting Up the Alarms and Timers
You can set up the following navigational alarms and timers:
Parameter Options Factory New
Default Default
Arrival Radius Alarm OFF OFF
Arrival radius value
Off Course Alarm OFF OFF
Value
Anchor Alarm OFF OFF
Value
Danger Zone Alarm OFF OFF
Value
Countdown Timer OFF OFF
ON (and value)
RESET
Elapsed Timer OFF OFF
ON
RESET
Clock Alarm OFF OFF
ON (and value)