ECDIS-E User Guide
Alerts
65934012
7-9
Mute Settings
The Mute Settings sub menu enables the operator to adjust the length of
time, in minutes, that the alert buzzer is temporarily muted. It also enables
the operator to mute the buzzer for an unlimited period of time.
To change the mute settings do the following:
1. To change the mute time uncheck the
Mute length unlimited
check box (if
ticked) and click in the
Mute Length:
field, the value changes to green
(editable).
2. Move the trackball left to decrease the time or right to increase the
time. The mute time range may be set between 1 minute and 999
minutes. The default is 5 minutes.
3. Left click in the field to accept the value.
4. To mute the alarm buzzer for an
unlimited period of time tick the
Mute
length unlimited
check box. The
Mute Length field displays
Unlimited
as read-only.
If the mute length is set higher than the default time, or the mute
length is set to Unlimited, a Long Mute Length Warning is
displayed in the Alerts field.
Picture Freeze
A picture freeze represents a failure to update the User Interface on an
operational display. If a picture freeze occurs the permanent prompt field
will freeze on the currently displayed prompt, or the system data and time if
no prompts are displayed, see Prompts.
If the system returns to normal operation then the prompt field will continue
to cycle between prompts and system time, but an internal error alert will
be generated.
In the event of a picture freeze it is advisable to create a system fault report
(for details see Report) and to then restart the system, see Shutdown.
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