These smoke alarms are equipped with a very sophisticated, and reliable
radio system. Due to the use of modern and advanced components, the
range and penetration is high, while the current consumption is extremely
low, giving a long battery life. To enable radio transmission of alarms,
including during severe radio conditions such as radio interference etc.,
each smoke alarm has a code switch to reduce the risk of interference of
(or to) similar systems in the neighbourhood.
POSITION AND INSTALLATION – please refer to the separate
position and installation directions.
BATTERY INSTALLATION.
The power supply should be a good quality 9-volt block battery of alkaline
or lithium type, for example Ultralife. Alkaline Battery life is normally in
excess of one year. When it is time to replace the battery, the smoke alarm
will give a low battery warning “beep” once a minute, for up to 30 days
(the smoke alarm is fully operational during this period). Each time a
battery is connected, the smoke alarm will re-calibrate itself and check the
detection system. When this process is completed, the smoke alarm
sounds one longer beep. For extra safety, the smoke alarm also re-checks
itself every 24 hours. When the detector chamber becomes dirty, and the
smoke alarm needs to be cleaned, this is indicated by 4 repeated short
beeps. If there is any technical problem in the circuitry, or interference in
the detection system, this is indicated by either 2 or 3 short beeps.
Technical problems could also occur from dust, or from external
electromagnetic or extreme light sources, etc. Cleaning or re-positioning
may over come this kind of problem, if not the smoke alarm needs to be
returned to the supplier for service. Please note that the indications for the
operation and status of the hush/silence feature are 2 or 3 fast beeps.
Please refer to the “HUSH/SILENCER” section.
CODING
In a smoke alarm system, all units must be set to the
same code. The factory pre-set code is “2” and to
prevent interference from other systems, we recommend
that you change the code on all units on installation. The
same is recommended if you – for any reason incur
problems suspected to be nuisance alarms. When new
codes are set, each unit and the whole system should be
tested again (Please refer to the “TEST” section.)
ALARM
There are two (three) different alarm sounds to differentiate where and
which unit is the source of the alarm. In the detecting (primary) smoke
alarm there is a characteristic sound for the smoke alarm. In all other
(secondary) detectors the alarm sound has a different characteristic.
The alarm sound could be silenced in two ways, either 1) by pushing the
test/silencer button in one secondary unit, and if so, only this unit will be
silenced, (all other units will continue to sound as long as the primary unit
senses smoke). Or 2) by pushing the test/silencer button in the primary
unit. The primary unit will stop alarm immediately, and the other
secondary units will stop after a short (25-40 seconds) delay.
SPECIAL ALARM AND CODE FUNCTIONS
Normally case all units must have identical codes to enable alarms to
transmit wirelessly. This is however not applicable to code “0” which has
special “priority” functions. If a smoke alarm has code “0” this unit will
receive an alarm from units with all other codes after a 3-minute delay.
This feature could be used in several applications, for example it could be
given to a smoke alarm in a staircase of a HMO building, then if a smoke
alarm in an empty apartment sounds an alarm for more than 3 minutes this
will be transmitted to the staircase unit.
In the stairway, code “0” could be used for escape purposes. If for example
all smoke alarms in the staircases (or basement/attics) have code “0”, and
one of these sounds an alarm, then all other units regardless of codes will
sound an alarm.
SILENCER/HUSH FEATURE
If there is a risk of a nuisance alarm, before an alarm has started push the
test/silencer button briefly and the sensitivity will be reduced temporarily
for 10 minutes. After this period, it will automatically re-set to normal
sensitivity. Confirmation of the smoke alarm being re-set will be by two
short fast beeps, whilst in hush mode the test LED will flash twice every 8
seconds. The smoke alarm could also be re-set manually by a short push of
the test/silencer button, and the sensitivity immediately returns to normal.
simple coding
