Operating Instructions
MS-9050UD PN 52413:C 01/23/08 157
4.20 Special System Timers
4.20.1 Silence Inhibit Timer
This option, if selected, prevents the Alarm Silence key from functioning for 60 seconds following
an alarm. A new alarm during the initial 60 second period will not
cause the timer to restart with a
new 60 seconds. Silence Inhibit operation requires the approval of the local Authority Having
Jurisdiction.
4.20.2 Autosilence Timer
If Autosilence is selected, the notification appliances, programmed as silenceable, will
automatically be silenced after a programmable duration of from 5 to 30 minutes. Pressing the
Drill key will restart the timer. Autosilence operation requires the approval of the local Authority
Having Jurisdiction.
4.20.3 Trouble Reminder
If selected, this feature causes a reminding ‘beep’ every 15 seconds during an alarm (after the
Alarm Silence key is pressed) and every two minutes during a trouble condition (after the
Acknowledge/Step or Alarm Silence key is pressed). The ‘beeps’ from the onboard piezo sounder
will occur until the alarm or fault is cleared.
Note that enabling/disabling the Trouble Reminder feature has no effect on Trouble Resound.
When an existing trouble in the system is silenced, if the trouble condition is not cleared before
midnight, the piezo will resound, indicating that the trouble condition still exists.
4.20.4 Waterflow Retard Timer
If selected, this option will delay the activation of a waterflow type alarm for a programmable time
duration from 1 to 90 seconds. This delay is in addition to any time delay inherent in the waterflow
device. This feature requires the approval of the local Authority Having Jurisdiction.
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