Alarm functions
The alarm is equipped with a battery monitoring system. Low batteries are indicated by the alarm starting
to beep and the yellow Fault LED (Fig. (C) flashing around every 60 seconds. The alarm will continue to
work in this condition for around another 7 days. You should nevertheless change the batteries as soon
as possible. In the event of an alarm, the device can be muted by briefly pressing the Test/Mute button
(Fig. 8B).
Table of functions:
Sound
Green Power LED Red Alarm LED
none
flashes every 60secs
off
beeps every 60 secs
off
off
beeps every 60 secs
off
off
after approx. 6 minutes
beeps every 2 secs
flashes every 2 secs
flashes every 2 secs
beeps every 60 secs
off
off
beeps every 60 secs
flashes every 60 secs
flashes
intermittent
off
flashes
none
flashes approx.
flashes approx.
every 8 secs
every 8 secs
Maintenance
Changing the battery
The batteries should be changed at least once a year or immediately if the low battery alert sounds. When
changing the batteries, the alarm must not be dismounted.
1. Open the battery compartment (Fig. 8A) while at the same time sliding the compartment cover downwards
(Fig. 8B). Do not dispose of the batteries with your household waste. You must recycle all used batteries.
Batteries may be returned free-of-charge to the point of sale or to your local collection point.
2. Insert 3 new batteries correctly (Fig. 9) and make sure that the red pins are in contact with each battery.
The alarm confirms that the batteries are in place with a short sound.
3. Close the battery compartment by placing the cover on the alarm and sliding it upwards until it pops in.
4. Test the alarm right away (see Operating test).
We recommend the following 1.5 V alkaline batteries, size AA/Mignon Energizer E91.
Under normal conditions new batteries will last for around a year – depending on the number of tests. If
the alarm is subjected to high or low temperatures for longer time, or to high air humidity, battery lifetime
will reduced.
Testing the alarm
Check once a week that the alarm is working properly by briefly pressing down the Test/Mute button
(Fig. 8B). The alarm will beep 2 or more times and the 3 LEDs (Fig. (C) will light up briefly. Afterwards the
alarm returns to its normal operating mode.
Cleaning the alarm
Loose dust inside the alarm can be through the vents using a vacuum cleaner. The alarm cover can be
cleaned from the outside with a lightly dampened cloth. Under no circumstances use of any detregent
containing ammonia or any other chemicals (such as cleaning agents or solvents) on or anywhere near the
alarm. Do not paint or varnish the alarm!
Yellow Fault LED Meaning
off
normal function
flashes every
battery low, see Maintenance
60 secs
constantly lit
alarm is not locked into
mounting plate
flashes every 2 secs test function
flashes 3 x
device faulty, replace
every 60 secs
immediately
off
muted
off
alarm triggered, see What to do
when the alarm sounds
off
warm-up phase of approx.
5 minutes after switch-on
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Battery and rechargeable battery information
Old batteries may not be disposed of with the unsorted household waste. Owners of used batteries
are legally obliged to recycle the batteries and can return them free of charge to the point of sale.
Batteries contain materials which are harmful to the environment and health, and must therefore be
disposed of professionally.
Recycling instructions
This device must not be disposed of with unsorted household waste. Owners of old devices are
required by law to dispose this device correctly properly Contact your town council for further
information.
Trigger level in accordance with EN 50291-1 : 2010
CO concentration in air
50 ppm
100 ppm
300 ppm
Technical information
Model name
Battery operation
Certification
Signal volume
Storage/transport temperature
Permissible air humidity
Protection type
Dimensions
Service life of detector
Subject to technical and design changes without prior notice.
No. minutes before alarm triggered
60 - 90
10 - 40
3
FMG 3255: model B
FMG 30008, FMG 30015: model A
3 x 1.5 V alkaline (AA/Mignon) Energizer E91
EN 50291-1: 2010
approx. 85 dB/3 m
+4°C - +38°C
10% - 95%, non-condensing
IP X2D
Ø 125 mm, height 33 mm
approx. 5 years
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