8.1 Alarms
Alarms alert you to a situation or hazard requiring your attention.
You can set up alarms to alert you to certain conditions.
Alarms are raised by system functions, and also external equipment
connected to your display.
When an alarm event occurs an audible and visual alarm is activated
which indicates the alarm state.
Alarm thresholds can be congured from the relevant alarm page /
menu.
Instrument alarms
The table below shows the alarms available on each instrument
display variant.
i40 Bidata i40 Depth i40 Speed i40 Wind
Shallow alarm Shallow alarm
High wind speed
alarm
Deep alarm Deep alarm
Shallow anchor
alarm
Shallow anchor
alarm
Deep anchor
alarm
Deep anchor
alarm
Alarm indications
An alarm event is indicated by both audible and visual warnings.
Shallow alarm
The Shallow alarm is available on both the i40 Bidata and i40 Depth
instruments. The Shallow alarm sounds when the depth is equal to
or less than the Shallow alarm threshold. The alarm sounds until
silenced manually.
Deep alarm
The Deep alarm is available on both the i40 Bidata and i40 Depth
instruments. The Deep alarm sounds when the depth is equal to the
Deep alarm threshold. The alarm sounds until silenced manually.
Anchor alarms
The anchor alarms are available on both the i40 Bidata and i40
Depth instruments. The anchor alarms sound when either:
• Depth is equal to or less than the Shallow anchor alarm threshold,
or
• Depth is equal to or more than the Deep anchor alarm threshold.
The alarm sounds until silenced manually.
High wind speed alarm
The High wind speed alarm is available on the i40 Wind instrument.
The High wind speed alarm sounds when the wind speed exceeds
the High wind speed alarm threshold. The alarm sounds until
silenced manually.
True wind — If vessel speed information is available at the
instrument (from a SeaTalk bus) the alarm is triggered if True wind
speed exceeds the threshold.
Apparent wind — If vessel speed information is not present, the
alarm is triggered if the Apparent wind speed exceeds the threshold.
Silencing alarms
1. Press any button to silence an active alarm.
Enabling / Disabling alarms
Alarms can be enabled or disabled at any time.
With the relevant alarm page displayed:
1. Press and hold the Up button for 3 seconds to switch the alarm
on or off.
Setting alarm thresholds
You can adjust the threshold at which alarms are triggered by
following the steps below.
With the relevant alarm page displayed:
1. Press the Up and Down button simultaneously to enter edit
mode.
2. Use the Up button to increase the alarm threshold.
3. Use the Down button to decrease the alarm threshold.
4. Press the Up and Down button simultaneously to save the new
alarm threshold and exit edit mode.
Note: The illustration above is an example depicting setting the
Deep alarm threshold on an i40 Depth instrument.
46 i40
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