Special System Timers Operating Instructions
MS-9600 PN 51335:E 7/9/03 121
4.20 Special System Timers
4.20.1 Silence Inhibit Timer
This option, if selected, prevents the Alarm Silence and Reset keys from functioning for
60 seconds following an alarm. A second alarm during this 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 if the trouble is not cleared within 24 hours, 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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