1 Standard Latching 2 seconds
2 Standard Latching 2 seconds with AVF
3 Non Latching 2 seconds
4 Non Latching 20 seconds
5 Time Delay 10 seconds
6 Time Delay 20 seconds
7 Time Delay 30 seconds
8 Time Delay 40 seconds
9 Time Delay 50 seconds
10 Time Delay 60 seconds
Latching Type
Once an alarm condition is received from the detector, the alarm zone will start a timer, if after 2 seconds
the detector is still activated the alarm zone will register an alarm condition. Indicators will illuminate and
alarm functions are initiated immediately, unless zone is set as AVF - refer Appendix C.
The alarm zone will remain in alarm until manually reset.
A reset is performed by interrupting the power to the detector for 0.5 seconds and returning the alarm zone
back to its quiescent state. If an alarm is still present in the detector area, the detector will re-activate and
the 2-second timer will be re-initiated.
Non – Latching Type
A temporary actuation device (e.g. Flow Switch) is usually connected to this type of alarm zone. Once a
signal has been received CONTINUOUSLY for 2 seconds or 20 seconds (dependant on programming) an
alarm will be registered causing the alarm LED to flash and alarm functions will be performed as
programmed.
The alarm group will remain in alarm until the actuating device no longer reports a signal. When actuating
device signal is clear, the alarm is cleared, causing the zone to power down for 0.5 seconds and return
back to normal state.
Time Delay AZF
The time delay AZF zone can be preset to any one of 6 time delays in the initial setup. This type of zone is
used for AS1668 smoke detection zones. Zone timing etc is as per AS1668-1991.
Example: Timer #1 = 60 seconds
Once the first alarm is received, the alarm LED is turned on steady; this indicates "PARTIAL ALARM"
condition.
The detector is then reset (by removing its power for 0.5 seconds) and a timer is also started for 60
seconds (TIMER#1). Another timer of 10 seconds (TIMER#2) is also started. The zone must respond
again within these 10 seconds (TIMER#2) to register another alarm.
Failure to receive another alarm within this 10-second period will return the zone back to its normal state
immediately and extinguish the alarm LED.
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