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DSM250 User’s Manual
Page 230 Revision 1.4.16a
8.3.7.12.1 Trigger Configuration – Time Alert
Figure 270 – Alert Editor – Time Alert
Alert Time – The alert will become active at the time specified in this field. If the time specified has
already passed, then the alarm will be set for the next day. Entering a number without the colon will
assume that the hours are zero.
Repeat Interval – The alert will become active again after the period specified in this field. For
example, if the Alarm Time were set to 8:00 and the Repeat Interval were set to 1:00 (1 hour, zero
minutes), the Alarm would become active again at 9:00, 10:00, and so on.
8.3.8 Local Audible
If the Local Audible field is set to Enabled, the speaker internal to the DSM250 will be activated when
this Alert is triggered.
8.3.9 Tone
If Local Audible is enabled, the tone that is sounded on the DSM250 and the Remote Annunciators
can be set here. This allows the user to configure the Alerts so that the alert can be identified from the
tone. The values for Tone are:
Beeps – A continuous series of half second on, half second off beeps is sounded. This
corresponds to the requirements for IMO Code 3.a
Continuous – A continuous tone is sounded. This corresponds to the requirements for IMO Code
2
General Emergency – A series of seven one second on, one second off tones are sounded,
followed by a single tone of 7 seconds on. The sequence is repeated. This corresponds to the
requirements for IMO Code 1a (7 pulse) (General Emergency Alarm, SOLAS III/50, III/6.4)
Carbon Monoxide – This is a series of four one tenth second on, one tenth second off beeps
followed by one and a half seconds of silence. The sequence is repeated. This corresponds to
the requirements for Temporal 4 alarms *(T4, CO)
Fire – This is a series of three half a second on, half a second off beeps followed by one and a
half seconds of silence. The sequence is repeated. This corresponds to the requirements for
Code-3 (ISO 8201, Smoke/Fire)