Maretron DSM150, User Manual

Page: 240 / 274

DSM150
User’s Manual
Page 224 Revision 1.4.18
Figure 259
– Trigger Configuration – High Alert
Re-trigger Period
– When you accept an alert, it will change to the “Accepted” state, and
annunciators that are sounding for that alert will stop sounding. If the condition which caused
the alert remains true after the amount of time in this field, the alert will return to the “Active”
state, and annunciators will begin sounding again for that alert. The value is entered as
minutes:seconds. If only one number is entered, it will be interpreted as seconds. If a value of
0:00 is entered, then the alert will never re-trigger.
Alert Set Point
– If the value of the parameter being monitored rises above the value in this field,
the alert will become active.
Alert Set Delay
– The parameter being monitored must rise above the Alert Set Point value for
longer than the time in this field in order for an alert to become active. This can be used to
prevent false alerts caused by parameter values that briefly have a value that would cause an
alert but quickly return to the normal value range. The value is entered as minutes:seconds. If
only one number is entered, it will be interpreted as seconds.
Alert Clear Point
– If the alert is active and the parameter value falls below the value in this field,
the alert will become inactive.
Alert Clear Delay
– The parameter being monitored must fall below the Alert Clear Point value for
longer than the time in this field in order for the alert to become inactive. The value is entered
as minutes:seconds. If only one number is entered, it will be interpreted as seconds.
8.3.7.2 Trigger Type is Low Alert
A low alert is used to signal you when a parameter value falls below a threshold you determine. For
example, you can set an alert to occur whenever the port engine oil pressure rises falls below 40 PSI.
8.3.7.2.1 Parameters
A low alert and associated diagram are shown in the figure below.