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2. Types of Alarm
a. Power Supply
•
DC alarms
9V battery powered units, but will only function if battery is in good
condition – check regularly (AS 3786).
•
AC/DC alarms
240V mains – for professional installation. Minimum required to comply
with relevant local Building Regulations. Interconnectable to other Quell
Alarms, so all will sound when one is triggered. If mains power is lost,
will operate via battery power if batteries are fresh/properly installed.
Some models use replaceable 9V batteries. This type is the minimum
grade acceptable on new or materially altered dwellings.
WARNING:
This alarm cannot be operated from power derived from a square wave
or modified sine wave inverter. These types of inverters are sometimes
used to supply power to the structure in off grid installations, such as
solar or wind derived power sources. These power sources produce
high peak voltages that will damage the alarm.
b. Alarm Types
•
Ionisation (Ion) alarms
are the most common type and provide early
detection against fast flaming fires and other fires. Most suitable for dining
and living room areas. Ion alarms contain 0.9 microcurie of Americium
241, a radioactive material.
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