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Elkron HPA800 Manual

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33/52 HPA800
Two types of sound can be selected using DIP A3.
If the system status and alarm memory functions are not used, it is possible, although not recommended,
to deactivate the limit of 8 alarms in 24 hours by connecting the TC input to the ALL input. In this case,
the alarm cycle ends with a continuous low power tone of 3 seconds.
3.7 ALARM MEMORY SIGNALLING
If enabled via DIP B1, the siren can display the alarm memory condition, distinguishing the origin of the alarm,
as shown in the following table:
The alarm memory light signal is continuous regardless of the system status (on or off).
The alarm memory is deleted the next time the system is switched on or off.
To enable the alarm memory display, the DIP B1 must be set to OFF.
Alarm memory signallings have priority over the system status signalling.
3.8 BATTERY/POWER SUPPLY FAULT
The internal battery charge is managed by the siren board. Under normal charging conditions, the siren board is
checked and limited in current to prevent excessive absorption from compromising the external power supply. In
case of prolonged external power supply voltage failure, the battery voltage may drop below a value such to
cause instability in the electronics and possible deterioration of the battery; in this case, the board inhibits all
siren functions, indicating the status.
When the power supply voltage returns, the battery is subjected to impulsive charging with reduced duty-cycle:
this helps to regenerate the battery if it is undercharged limits stress on the charge limiter. The siren functions
are restored when the normal operating voltage is reached.
WARNING ! In case of a faulty or discharged battery, if the control panel is not able to supply sufficient
current to sound the alarm, the siren restarts and does not return to service until the alarm signal returns
to rest. In this case, if the control panel is equipped with a dedicated power supply for the sirens with a
current limiter, a fault signal can be generated due to an overload of the output.
4 central LEDs
(high brightness)
Stored event
2 flashes every 2 seconds
system alarm memory (siren alarm input)
3 flashes every 2 seconds
alarm memory tamper siren (internal microswitch)
4 flashes every 2 seconds
alarm memory anti-foam siren (internal active anti-foam protection)
On 4 central LEDs
(high-intensity)
Siren condition
1 flash every 5 seconds
siren temporarily inhibited due to battery/power supply failure
… 33 …


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