Maretron Alarm Module ALM100 Manual de usuario descargar pdf (Pagina 257)

eliminate any temporary transitions of the input signal above the High Alert Set

Point lasting less than 5 seconds from triggering an alert.

Once the alert is triggered, it becomes an active alert. An alert remains active

until

• The input signals falls below the High Alert Clear Point and the Clear Delay time

has elapsed. If the Clear Delay is set to zero, then the alert immediately

transitions to the Awaiting Cancel once the input signal falls below the High Alert

Clear Point (as shown in the example above).

• The user accepts the alert in which case it transitions into the Accepted state.

The Clear Delay is used to reduce false or spurious alerts.

10.3.6.4.1.2 Trigger Configuration

Figure 87 – Trigger Configuration – High Alert

Accept 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.

High Alert Set Point – If the value of the parameter being monitored rises above

the value in this field, the alert will become active.

Set Delay – The parameter being monitored must rise above the High 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

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Maretron Alarm Module ALM100 Manual de usuario Pagina 257