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Northstar M121/M84 Installation and Operation Manual84
Press
MENU
twice, then select Alarms:
19-10 Setup > Alarms
For all alarms select to turn the alarm on or
select
to turn the alarm off. For most alarms
there is a trigger value. The alarm will sound
each time the alarm value equals the trigger
value.
For example, the Danger alarm will sound if
the boat comes closer to a danger waypoint
than the trigger value and the Anchor alarm
will sound if the boat moves by more than the
trigger value.
You can display the alarm status in the data
header (see section 2-7-3). The alarm status
shows the symbol for each alarm that is on. The
symbol is normally black and turns red if the
alarm triggers.
Symbol Alarm Beeper Alarm sounds when it is on and the:
Arrival radius Boat is closer to the destination or to a waypoint than the alarm trigger
value
Anchor alarm Boat moves by more than the alarm trigger value
XTE Boat moves off course by more than the CDI scale (see section 5)
Danger Boat comes closer to a danger waypoint than the alarm trigger value
Too shallow
1
/
5
sec Depth is less than the alarm trigger value
Too deep
1
/
2
sec Depth is greater than the alarm trigger value
Fish 1 short beep Echo matches the profi le of a fi sh
Temperature
1
/
2
sec Temperature equals the alarm trigger value
Temperature
rate
1
/
2
sec Rate of change of temperature equals the alarm trigger value
Low battery
1
/
2
sec Battery voltage is less than the alarm trigger value
Low fuel
1
/
2
sec Low fuel remaining equals the alarm trigger value; on a multitank boat
you can set separate alarms for each tank (see section 13-4)
Loss of DGPS fi x Instrument can not receive the DGPS signal (beacon, WAAS or EGNOS)
Loss of GPS fi x Instrument can not receive the GPS signal (this alarm is always on)
Loss of AIS
receiver
communication
M121/M84 is no longer receiving communication from the AIS receiver
(Alarm is on when AIS is enabled)
Dangerous
vessel
The TCPA/CPA of another vessel is less than the trigger values
(see section 13)